And you must recollect that high farming requires an increasedsupply of labor, and hired help is a luxury almost as costly as artificial fertilizers.
We have heard superficial thinkers object to agricultural papers on the ground that they were urging farmers to improve their land and produce larger crops, “while,” say they, “we are producing so much already that it will not sell for as much as it costs to produce it.” My plan of improved agriculture does not necessarily imply the production of any more wheat or of any more grain of any kind that we sell than we raise at present. I would simply raise it on fewer acres, and thus lessen the expense for seed, cultivation, harvesting, etc. I would raise 30 bushels of wheat per acre every third year, instead of 10 bushels every year.
If we summer-fallowed and plowed under clover in order to produce the 30 bushels of wheat once in three years, instead of 10 bushels every year, no more produce of any kind would be raised. But my plan does not contemplate such a result. On my own farm I seldom summer-fallow, and never plow under clover. I think I can enrich the farm nearly as much by feeding the clover to animals and returning the manure to the land. The animals do not take out more than from five to ten per cent of the more valuable elements of plant-food from the clover. And so my plan, while it produces as much and no more grain to sell, adds greatly to the fertility of the land, and gives an increased production of beef, mutton, wool, butter, cheese, and pork.
“But what is a man to do who is poor and has poor land?” If he has good health, is industrious, economical, and is possessed of a fair share of good common sense, he need have no doubt as to being able to renovate his farm and improve his own fortune.
Faith in good farming is the first requisite. If this is weak, it will be strengthened by exercise. If you have not faith, act as though you had.
Work hard, but do not be a drudge. A few hours’ vigorous labor will accomplish a great deal, and encourage you to continued effort. Be prompt, systematic, cheerful, and enthusiastic. Go to bed early and get up when you wake. But take sleep enough. A man had better be in bed than at the tavern or grocery. Let not friends, even, keep you up late; “manners is manners, but still your elth’s your elth.”
“But what has this to do with good farming?” More than chemistry and all the science of the schools. Agriculture is an art and must be followed as such. Science will help—help enormously—but it will never enable us to dispense with industry. Chemistrythrows great light on the art of cooking, but a farmer’s wife will roast a turkey better than a Liebig.
When Mr. James O. Sheldon, of Geneva. N.Y., bought his farm, his entire crop of hay the first year was 76 loads. He kept stock, and bought more or less grain and bran, and in eleven years from that time his farm produced 430 loads of hay, afforded pasture for his large herd of Shorthorn cattle, and produced quite as much grain as when he first took it.
Except in the neighborhood of large cities, “high farming” may not pay, owing to the fact that we have so much land. But whether this is so or not, there can be no doubt that the only profitable system of farming is to raise large crops on such land as we cultivate. High farming gives us large crops, andmany of them. At present, while we have so much land in proportion to population, we must, perhaps, be content with large crops of grain, and few of them. We must adopt the slower but less expensive means of enriching our land from natural sources, rather than the quicker, more artificial, and costly means adopted by many farmers in England, and by market gardeners, seed-growers, and nurserymen in this country. Labor is so high that we can not afford to raise a small crop. If we sow but half the number of acres, and double the yield, we should quadruple our profits. I have made up my mind to let the land lie in clover three years, instead of two. This will lessen the number of acres under cultivation, and enable us to bestow more care in plowing and cleaning it. And the land will be richer, and produce better crops. The atmosphere is capable of supplying a certain quantity of ammonia to the soil in rains and dews every year, and by giving the wheat crop a three years supply instead of two years, we gain so much. Plaster the clover, top-dress it in the fall, if you have the manure, and stimulate its growth in every way possible, and consume all the clover on the land, or in the barn-yard. Do not sell a single ton; let not a weed grow, and the land will certainly improve.
The first object should be to destroy weeds. I do not know how it is in other sections, but with us the majority of farms are completely overrun with weeds. They are eating out the life of the land, and if something is not done to destroy them, even exorbitantly high prices can not make farming profitable. A farmer yesterday was contending that it did not pay to summer-fallow. He has taken a run-down farm, and a year ago last spring he plowed up ten acres of a field, and sowed it to barley and oats. The remainder of the field he summer-fallowed, plowing it four times, rolling and harrowing thoroughly after each plowing. Afterthe barley and oats were off, he plowed the land once, harrowed it and sowed Mediterranean wheat. On the summer-fallow he drilled in Diehl wheat. He has just threshed, and got 22 bushels per acre of Mediterranean wheat after the spring crop, at one plowing, and 26 bushels per acre of Diehl wheat on the summer-fallow. This, he said, would not pay, as it cost him $20 per acre to summer-fallow, and he lost the use of the land for one season. Now this may be all true, and yet it is no argument against summer-fallowing. Wait a few years. Farming is slow work. Mr. George Geddes remarked to me, when I told him I was trying to renovate a run-down farm, “you will find it the work of your life.” We ought not to expect a big crop on poor, run-down land, simply by plowing it three or four times in as many months. Time is required for the chemical changes to take place in the soil. But watch the effect on the clover for the next two years, and when the land is plowed again, see if it is not in far better condition than the part not summer-fallowed. I should expect the clover on the summer-fallow to be fully one-third better in quantity, and of better quality than on the other part, and this extra quantity of clover will make an extra quantity of good manure, and thus we have the means of going on with the work of improving the farm.
“Yes,” said the Doctor, “and there will also be more clover-roots in the soil.”
“But I can not afford to wait for clover, and summer-fallowing,” writes an intelligent New York gentleman, a dear lover of good stock, who has bought an exhausted New England farm, “I must have a portion of it producing good crops right off.” Very well. A farmer with plenty of money can do wonders in a short time. Set a gang of ditchers to work, and put in underdrains where most needed. Have teams and plows enough to do the work rapidly. As soon as the land is drained and plowed, put on a heavy roller. Then sow 500 lbs. of Peruvian guano per acre broadcast, or its equivalent in some other fertilizer. Follow with a Shares’ harrow. This will mellow the surface and cover the guano without disturbing the sod. Follow with a forty-toothed harrow, and roll again, if needed, working the land until there is three or four inches of fine, mellow surface soil. Then mark off the land in rows as straight as an arrow, and plant corn. Cultivate thoroughly, and kill every weed. If the ditchers can not get through until it is too late to plant corn, drill in beans on the last drained part of the field.
Another good crop to raise on a stock farm is corn-fodder. This can be drilled in from time to time as the land can be gotready. Put on half a ton of guano per acre and harrow in, and then mark off the rows three feet apart, and drill in four bushels of corn per acre. Cultivate thoroughly, and expect a great crop. By the last of July, the Ayrshire cows will take kindly to the succulent corn-fodder, and with three or four quarts of meal a day, it will enable each of them to make 10 lbs. of butter a week.
For the pigs, sow a few acres of peas. These will do well on sod-land, sown early or late, or a part early and a part late, as most convenient. Sow broadcast and harrow in, 500 lbs. of Peruvian guano per acre and 200 lbs. of gypsum. Drill in three bushels of peas per acre, or sow broadcast, and cover them with a Shares’ harrow. Commence to feed the crop green as soon as the pods are formed, and continue to feed out the crop, threshed or unthreshed, until the middle of November. Up to this time the bugs do comparatively little damage. The pigs will thrive wonderfully on this crop, and make the richest and best of manure.
I have little faith in any attempt to raise root crops on land not previously well prepared. But as it is necessary to have some mangel-wurzel and Swede turnips for the Ayrshire cows and long-wool sheep next winter and spring, select the cleanest and richest land that can be found that was under cultivation last season. If fall plowed, the chances of success will be doubled. Plow the land two or three times, and cultivate, harrow, and roll until it is as mellow as a garden. Sow 400 lbs. of Peruvian guano and 300 lbs. of good superphosphate per acre broadcast, and harrow them in. Ridge up the land into ridges 2½ to 3 ft. apart, with a double mould-board plow. Roll down the ridges with a light roller, and drill in the seed. Sow the mangel-wurzel in May—the earlier the better—and the Swedes as soon afterwards as the land can be thoroughly prepared. Better delay until June rather than sow on rough land.
The first point on such a farm will be to attend to the grass land. This affords the most hopeful chance of getting good returns the first year. But no time is to be lost. Sow 500 lbs. of Peruvian guano per acre on all the grass land and on the clover, with 200 lbs. of gypsum in addition on the latter. If this is sown early enough, so that the spring rains dissolve it and wash it into the soil, great crops of grass may be expected.
“But will it pay?” My friend in New York is a very energetic and successful business man, and he has a real love for farming, and I have no sort of doubt that, taking the New York business and the farm together, they will afford a very handsome profit. Furthermore, I have no doubt that if, after he has drained it, hewould cover the whole farm with 500 lbs. of Peruvian guano per acre, or its equivalent, it would pay him better than any other agricultural operation he is likely to engage in. By the time it was on the land the cost would amount to about $20 per acre. If he sells no more grass or hay from the farm than he would sell if he did not use the guano, this $20 may very properly be added to the permanent capital invested in the farm. And in this aspect of the case, I have no hesitation in saying it will pay a high rate of interest. His bill for labor will be as much in one case as in the other; and if he uses the guano he will probably double his crops. His grass lands will carry twenty cows instead of ten, and if he raises the corn-fodder and roots, he can probably keep thirty cows better than he could otherwise keep a dozen; and, having to keep a herdsman in either case, the cost of labor will not be much increased. “But you think it will not pay?” It will probably not payhim. I do not thinkhisbusiness would pay me if I lived on my farm, and went to New York only once or twice a week. If there is one business above all others that requires constant attention, it is farming—and especially stock-farming. But my friend is right in saying that he cannot afford to wait to enrich his land by clover and summer-fallowing. His land costs too much; he has a large barn and everything requisite to keep a large stock of cattle and sheep. The interest on farm and buildings, and the money expended in labor, would run on while the dormant matter in the soil was slowly becoming available under the influence of good tillage. The large barn must be filled at once, and the only way to do this is to apply manure with an unsparing hand. If he lived on the farm, I should have no doubt that, by adopting this course, and by keeping improved stock, and feeding liberally, he could make money. Perhaps he can find a man who will successfully manage the farm under his direction, but the probabilities are that his present profit and pleasure will come from the gratification of his early love for country life.
“What is the good of asking such a question as that?” said the Deacon; “we all know what manure is.”
“Well, then,” I replied, “tell us what it is?”
“It is anything that will make crops grow better and bigger,” replied the Deacon.
“That is not a bad definition,” said I; “but let us see if it is a true one. You have two rows of cabbage in the garden, and you water one row, and the plants grow bigger and better. Iswatermanure? You cover a plant with a hand-glass, and it grows bigger and better. Is a hand-glass manure? You shelter a few plants, and they grow bigger and better. Is shelter manure? You put some pure sand round a few plants, and they grow bigger and better. Is pure sand manure? I think we shall have to reject the Deacon’s definition.”
Let us hear what the Doctor has to say on the subject.
“Manure,” replied the Doctor, “is thefood of plants.”
“That is a better definition,” said I; “but this is really not answering the question. You say manure is plant-food. But what is plant-food?”
“Plant-food,” said the Doctor, “is composed of twelve elements, and, possibly, sometimes one or two more, which we need not here talk about. Four of these elements are gases, oxygen, hydrogen, carbon, and nitrogen. When a plant or animal is burnt, these gases are driven off. The ashes which remain are composed of potash, soda, lime, and magnesia; sulphuric acid, phosphoric acid, chlorine, and silica. In other words, the ‘food of plants’ is composed of four organic, or gaseous elements, and eight inorganic, or mineral elements, of which four have acid and four alkaline properties.”
“Thank you, Doctor,” said the Deacon, “I am glad to know what manure is. It is the food of plants, and the food of plants is composed of four gases, four acid and four alkaline elements. I seem to know all about it. All I have wanted to make my land rich was plenty of manure, and now I shall know where to get it—oxygen, hydrogen, carbon, and nitrogen; these four atmospheric elements. Then potash, soda, magnesia, and lime. I know what these four are. Then sulphur, phosphorous, silica(sand,) and chlorine (salt). I shall soon have rich land and big crops.”
Charley, who has recently come home from college, where he has been studying chemistry, looked at the Deacon, and was evidently puzzled to understand him. Turning to the Doctor, Charley asked modestly if what the Doctor had said in regard to the composition of plant food could not be said of the composition of all our animals and plants.
“Certainly,” replied the Doctor, “all our agricultural plants and all our animals, man included, are composed of these twelve elements, oxygen, hydrogen, carbon, and nitrogen; phosphorus, sulphur, silica, chlorine, potash, soda, magnesia, and lime.”
Charley said something about lime, potash, and soda, not being “elements;” and something about silica and chlorine not being found in animals.
“Yes,” said I, “and he has left outiron, which is an important constituent of all our farm crops and animals.” Neither the Doctor nor the Deacon heard our remarks. The Deacon, who loves an argument, exclaimed: “I thought I knew all about it. You told us that manure was the food of plants, and that the food of plants was composed of the above twelve elements; and now you tell us that man and beast, fruit and flower, grain and grass, root, stem, and branch, all are composed or made up of these same dozen elements. If I ask you what bread is made of, you say it is composed of the dozen elements aforesaid. If I ask what wheat-straw is made of, you answer, thedozen. If I ask what a thistle is made of, you say the dozen. There are a good many milk-weeds in my strawberry patch, and I am glad to know that the milk-weed and the strawberry are both composed of the same dozen elements. Manure is the food of plants, and the food of plants is composed of the above dozen elements, and every plant and animal that we eat is also composed of these same dozen elements, and so I suppose there is no difference between an onion and an omelet, or between bread and milk, or between mangel-wurzel and manure.”
“The difference,” replied the Doctor, “is one of proportion. Mangels and manure are both composed of the same elements. In fact, mangels make good manure, and good manure makes good mangels.”
The Deacon and the Doctor sat down to a game of backgammon, and Charley and I continued the conversation more seriously.
“The Doctor is in the main correct,” said I; “but he does not fully answer the question, ‘What is manure?’ To say that manure is plant-food, does not cover the whole ground. All soils on which plants grow, contain more or less plant-food. A plant can not create an atom of potash. It can not get it from the atmosphere. We find potash in the plant, and we know that it got it from the soil and we are certain, therefore, that the soil contains potash. And so of all the other mineral elements of plants. A soil that will produce a thistle, or a pig-weed, contains plant-food. And so the definition of the Doctor is defective, inasmuch as it makes no distinction between soil and manure. Both contain plant-food.”
“What is your definition of manure?” asked Charley; “it would seem as though we all knew what manure was. We have got a great heap of it in the yard, and it is fermenting nicely.”
“Yes,” I replied, “we are making more manure on the farm this winter than ever before. Two hundred pigs, 120 large sheep, 8 horses, 11 cows, and a hundred head of poultry make considerable manure; and it is a good deal of work to clean out the pens, pile the manure, draw it to the field, and apply it to the crops. We ought to know something about it; but we might work among manure all our lives, and not know what manure is. At any rate, we might not be able to define it accurately. I will, however, try my hand at a definition.
“Let us assume that we have a field that is free from stagnant water at all seasons of the year; that the soil is clean, mellow, and well worked seven inches deep, and in good order for putting in a crop. What the coming ‘season’ will be we know not. It may be what we call a hot, dry summer, or it may be cool and moist, or it may be partly one and partly the other. The ‘season’ is a great element of uncertainty in all our farming calculations; but we know that we shall have a season of some kind. We have the promise of seed-time and harvest, and we have never known the promise to fail us. Crops, however, vary very much, according to the season; and it is necessary to bear this fact in mind. Let us say that the sun and heat, and rain and dews, or what we call ‘the season,’ is capable of producing 50 bushels of wheat per acre, but that the soil I have described above, does not produce over 20 bushels per acre. There is no mechanical defect in the soil. The seed is good, it is put in properly, and at the right time,and in the best manner. No weeds choke the wheat plants or rob them of their food; but that field does not produce as much wheat by 30 bushels per acre as theseasonis capable of producing. Why? The answer is evident.Because the wheat plants do not find food enough in the soil.Now, anything that will furnish this food, anything that will cause that field to produce what the climate or season is capable of producing, is manure. A gardener may increase his crops by artificial heat, or by an increased supply of water, but this is not manure. The effect is due to improved climatic conditions. It has nothing to do with the question of manure. We often read in the agricultural papers about ‘shadeas manure.’ We might just as well talk aboutsunlightas ‘manure.’ The effects observed should be referred to modifications of the climate or season; and so in regard to mulching. A good mulch may often produce a larger increase of growth than an application of manure. But mulch, proper, is not manure. It is climate. It checks evaporation of moisture from the soil. We might as well speak of rain as manure as to call a mulch manure. In fact, an ordinary shower in summer is little more than a mulch. It does not reach the roots of plants; and yet we see the effect of the shower immediately in the increased vigor of the plants. They are full of sap, and the drooping leaves look refreshed. We say the rain has revived them, and so it has; but probably not a particle of the rain has entered into the circulation of the plant. The rain checked evaporation from the soil and from the leaves. A cool night refreshes the plants, and fills the leaves with sap, precisely in the same way. All these fertilizing effects, however, belong to climate. It is inaccurate to associate either mulching, sunshine, shade, heat, dews, or rain, with the question of manure, though the effect may in certain circumstances be precisely the same.”
Charley evidently thought I was wandering from the point. “You think, then,” said he, “manure isplant-food that the soil needs?”
“Yes,” said I, “that is a very good definition—very good, indeed, though not absolutely accurate, because manure is manure, whether a particular soil needs it or not.” Unobserved by us, the Deacon and the Doctor had been listening to our talk. —“I would like,” said the Deacon, “to hear you give a better definition than Charley has given.” —“Manure,” said I, “is anything containing an element or elements of plant-food, which, if the soil needed it, would, if supplied in sufficient quantity, and in an available condition, produce, according to soil, season, climate, and variety, a maximum crop.”
We often hear about “natural” manure. I do not like the term, though I believe it originated with me. It is not accurate; not definite enough.
“I do not know what you mean by natural manure,” said the Deacon, “unless it is the droppings of animals.” —“To distinguish them, I suppose,” said the Doctor, “from artificial manures, such as superphosphate, sulphate of ammonia, and nitrate of soda.” —“No; that is not how I used the term. A few years ago, we used to hear much in regard to the ‘exhaustion of soils.’ I thought this phrase conveyed a wrong idea. When new land produces large crops, and when, after a few years, the crops get less and less, we were told that the farmers were exhausting their land. I said, no; the farmers are not exhausting thesoil; they are merely exhausting the accumulated plant-food in the soil. In other words, they are using up thenatural manure.
“Take my own farm. Fifty years ago, it was covered with a heavy growth of maple, beech, black walnut, oak, and other trees. These trees had shed annual crops of leaves for centuries. The leaves rot on the ground; the trees also, age after age. These leaves and other organic matter form what I have called natural manure. When the land is cleared up and plowed, this natural manure decays more rapidly than when the land lies undisturbed; precisely as a manure-pile will ferment and decay more rapidly if turned occasionally, and exposed to the air. The plowing and cultivating renders this natural manure more readily available. The leaves decompose, and furnish food for the growing crop.”
“You think, then,” said the Doctor, “that when a piece of land is cleared of the forest, harrowed, and sown to wheat; plowed and planted to corn, and the process repeated again and again, until the land no longer yields profitable crops, that it is the ‘natural manure,’ and not the soil, that is exhausted?”
“I think thesoil, at any rate, is not exhausted, and I can easily conceive of a case where even the natural manure is very far from being all used up.”
“Why, then,” asked the Deacon, “is the land so poor that it will scarcely support a sheep to the acre?”
“Simply because the natural manure and other plant-food which the soil contains is not in an available condition. It lies dead and inert. It is not soluble, and the roots of the plants cannot get enough of it to enable them to thrive; and in addition to this, you will find as a matter of fact that these poor ‘exhausted’ farms are infested with weeds, which rob the growing crops of a large part of the scanty supply of available plant-food.”
“But these weeds,” said the Deacon, “are not removed from the farm. They rot on the land; nothing is lost.”
“True,” said I, “but they, nevertheless, rob the growing crops of available plant-food. The annual supply of plant-food, instead of being used to grow useful plants, is used to grow weeds.”
“I understand that,” said the Deacon, “but if the weeds are left on the land, and the useful plants are sold, the farmer who keeps his land clean would exhaust his land faster than the careless farmer who lets his land lie until it is overrun with thistles, briars, and pig-weed. You agricultural writers, who are constantly urging us to farm better and grow larger crops, seem to overlook this point. As you know, I do not take much stock in chemical theories as applied to agriculture, but as you do, here is a little extract I cut from an agricultural paper, that seems to prove that the better you work your land, and the larger crops you raise, the sooner you exhaust your land.”
The Deacon put on his spectacles, drew his chair nearer the lamp on the table, and read the following:
“There is, on an average, about one-fourth of a pound of potash to every one hundred pounds of soil, and about one-eighth of a pound of phosphoric acid, and one-sixteenth of a pound of sulphuric acid. If the potatoes and the tops are continually removed from the soil, it will soon exhaust the potash. If the wheat and straw are removed, it will soon exhaust the phosphate of lime; if corn and the stalks, it will soon exhaust the sulphuric acid. Unless there is a rotation, or the material the plant requires is supplied from abroad, your crops will soon run out, though the soil will continue rich for other plants.”
“That extract,” said I, “carries one back twenty-five years. We used to have article after article in this strain. We were told that ‘always taking meal out of the tub soon comes to the bottom,’ and always taking potash and phosphoric acid from the soil will soon exhaust the supply. But,practically, there is really little danger of our exhausting the land. It does not pay. The farmer’s resources will be exhausted long before he can exhaust his farm.”
“Assuming,” said the Doctor, who is fond of an argument, “that the above statement is true, let us look at the facts. An acre of soil, 12 inches deep, would weigh about 1,600 tons; and if, as the writer quoted by the Deacon states, the soil contains 4 ozs. of potash in every 100 lbs. of soil, it follows that an acre of soil, 12 inches deep, contains 8,000 lbs. of potash. Now, potatoes contain about 20 per cent of dry matter, and this dry matter contains say, 4 per cent of ash, half of which is potash. It follows, therefore, that 250 bushels of potatoes contain about 60 lbs. of potash. If we reckon that the tops contain 20 lbs. more, or 80 lbs. in all, it follows that the acre of soil contains potash enough to grow anannualcrop of 250 bushels of potatoes per acre for one hundred years.”
“I know farmers,” said Charley, “who do not get over 50 bushels of potatoes per acre, and in that case the potash would last five hundred years, as the weeds grown with the crop are left on the land, and do not, according to the Deacon, exhaust the soil.”
“Good for you, Charley,” said the Doctor. “Now let us see about the phosphoric acid, of which the soil, according to the above statement, contains only half as much as it contains of potash, or 4,000 lbs. per acre.
“A crop of wheat of 30 bushels per acre,” continued the Doctor, “contains in the grain about 26 lbs. of ash, and we will say that half of this ash is phosphoric acid, or 13 lbs. Allowing that the straw, chaff, etc., contain 7 lbs. more, we remove from the soil in a crop of wheat of 30 bushels per acre, 20 lbs. of phosphoric acid, and so, according to the above estimate, an acre of soil contains phosphoric acid to produce annually a crop of wheat and straw of 30 bushels per acre fortwo hundred years.
“The writer of the paragraph quoted by the Deacon,” continued the Doctor, “selected the crops and elements best suited to his purpose, and yet, according to his own estimate, there is sufficient potash and phosphoric acid in the first 12 inches of the soil to enable us to raise unusually large crops until the next Centennial in 1976.
“But let us take another view of the subject,” continued the Doctor. “No intelligent farmer removes all the potatoesand tops, all the wheat, straw, and chaff, or all the corn and stalks from his farm. According to Dr. Salisbury, a crop of corn of 75 bushels per acre removes from the soil 600 lbs. of ash, but thegraincontains only 46 lbs. The other 554 lbs. is contained in the stalks, etc., all of which are usually retained on the farm. It followsfrom this, that when only the grain is sold off the farm, it takes more than thirteen crops to remove as much mineral matter from the soil as is contained in the whole of one crop. Again, the ash of the grain contains less than 3 per cent of sulphuric acid, so that the 46 lbs. of ash, in 75 bushels of corn, contains less than 1½ lbs. of sulphuric acid, and thus, if an acre of soil contains 2,000 lbs. of sulphuric acid, we have sufficient for an annual crop of 75 bushels per acre for fifteen hundred years!
“As I said before,” continued the Doctor, “intelligent farmers seldom sell their straw, and they frequently purchase and consume on the farm nearly as much bran, shorts, etc., as is sent to market with the grain they sell. In the ‘Natural History of New York,’ it is stated that an acre of wheat in Western New York, of 30 bushels per acre, including straw, chaff, etc., removes from the soil 144 lbs. of mineral matter. Genesee wheat usually yields about 80 per cent. of flour. This flour contains only 0.7 per cent of mineral matter, while fine middlings contain 4 per cent; coarse middlings, 5½ per cent; shorts, 8 per cent, and bran 8½ per cent of mineral matter or ash. It follows from this, that out of the 144 lbs. of mineral matter in the crop of wheat, less than 10 lbs. is contained in the flour. The remaining 134 lbs. is found in the straw, chaff, bran, shorts, etc., which a good farmer is almost sure to feed out on his farm. But even if the farmer feeds out none of his wheat-bran, but sells it all with his wheat, the 30 bushels of wheat remove from the soil only 26 lbs. of mineral matter; and it would take more than five crops to remove as much mineral matter as one crop of wheat and straw contains. Allowing that half the ash of wheat is phosphoric acid, 30 bushels remove only 13 lbs. from the soil, and if the soil contains 4,000 lbs., it will take three hundred and seven crops, of 30 bushels each, to exhaust it.”
“That is to say,” said Charley, “if all the straw and chaff is retained on the farm, and is returned to the land without loss of phosphoric acid.”
“Yes,” said the Doctor, “and if all the bran and shorts, etc., were retained on the farm, it would take eight hundred crops to exhaust the soil of phosphoric acid; and it is admitted that of all the elements of plant-food, phosphoric acid is the one first to be exhausted from the soil.”
I have sold some timothy hay this winter, and propose to do so whenever the price suits. But some of my neighbors, who do not hesitate to sell their own hay, think I ought not to do so, because I “write for the papers”! It ought to satisfy them to know that I bring back 30 cwt. of bran for every ton of hay Isell. My rule is to sell nothing but wheat, barley, beans, potatoes, clover-seed, apples, wool, mutton, beef, pork, and butter. Everything else is consumed on the farm—corn, peas, oats, mustard, rape, mangels, clover, straw, stalks, etc. Let us make a rough estimate of how much is sold and how much retained on a hundred-acre farm, leaving out the potatoes, beans, and live-stock. We have say:
15 acres wheat, @ 40 bushels per acre
5 acres barley, @ 50 bushels per acre
15 acres clover seed, 4 bushels per acre
15 acres corn, @ 80 bushels per acre
10 acres oats and peas, equal 80 bushels of oats
15 acres pasture and meadow, equal 40 tons hay
5 acres mustard, equal 10 tons hay
5 acres rape, equal 10 tons hay
5 acres mangels, 25 tons per acre, equal to 3 tons dry
It would take a good many years to exhaust any ordinary soil by such a course of cropping. Except, perhaps, the sandy knolls, I think there is not an acre on my farm that would be exhausted in ten thousand years, and as some portions of the low alluvial soil will grow crops without manure, there will be an opportunity to give the poor, sandy knolls more than their share of plant-food. In this way, notwithstanding the fact that we sell produce and bring nothing back, I believe the whole farm will gradually increase in productiveness. The plant-food annually rendered available from the decomposition and disintegration of the inert organic and mineral matter in the soil, will be more than equal to that exported from the farm. If the soil becomes deficient in anything, it is likely that it will be in phosphates, and a little superphosphate or bone-dust might at any rate be profitably used on the rape, mustard, and turnips.
The point in good farming is to develop from the latent storesin the soil, and to accumulate enough available plant-food for the production of the largest possible yield of those crops which we sell. In other words, we want enough available plant-food in the soil to grow 40 bushels of wheat and 50 bushels of barley. I think the farmer who raises 10 tons for every ton he sells, will soon reach this point, and when once reached, it is a comparatively easy matter to maintain this degree of fertility.
“If the soil is so rich in plant-food,” said the Deacon, “I again ask, why are our crops so poor?”
The Deacon said this very quietly. He did not seem to know that he had asked one of the most important questions in the whole range of agricultural science. It is a fact that a soil may contain enough plant-food to produce a thousand large crops, and yet the crops we obtain from it may be so poor as hardly to pay the cost of cultivation. The plant-food is there, but the plants cannot get at it. It is not in an available condition; it is not soluble. A case is quoted by Prof. Johnson, where a soil was analyzed, and found to contain to the depth of one foot 4,652 lbs. of nitrogen per acre, but only 63 lbs. of this was in an available condition. And this is equally true of phosphoric acid, potash, and other elements of plant-food. No matter how much plant-food there may be in the soil, the only portion that is of any immediate value is the small amount that is annually available for the growth of crops.
“I am tired of so much talk about plant-food,” said the Deacon; “what we want to know is how to make our land produce larger crops of wheat, corn, oats, barley, potatoes, clover, and grass.”
This is precisely what I am trying to show. On my own farm, the three leading objects are (1) to get the land drained, (2) to make it clean and mellow, and (3) to get available nitrogen for the cereal crops. After the first two objects are accomplished, the measure of productiveness will be determined by the amount of available nitrogen in the soil. How to get available nitrogen, therefore, is my chief and ultimate object in all the operations on the farm, and it is here that science can help me. I know how to get nitrogen, but I want to get it in the cheapest way, and then to be sure that I do not waste it.
There is one fact fully established by repeated experiment and general experience—that 80 lbs. of available nitrogen per acre,applied in manure, will almost invariably give us a greatly increased yield of grain crops. I should expect, on my farm, that on land which, without manure, would give me 15 bushels of wheat per acre, such a dressing of manure would give me, in a favorable season, 35 or 40 bushels per acre, with a proportional increase of straw; and, in addition to this, there would be considerable nitrogen left for the following crop of clover. Is it not worth while making an earnest effort to get this 80 lbs. of available nitrogen?
I have on my farm many acres of low, mucky land, bordering on the creek, that probably contain several thousand pounds of nitrogen per acre. So long as the land is surcharged with water, this nitrogen, and other plant-food, lies dormant. But drain it, and let in the air, and the oxygen decomposes the organic matter, and ammonia and nitric acid are produced. In other words, we getavailablenitrogen and other plant-food, and the land becomes capable of producing large crops of corn and grass; and the crops obtained from this low, rich land, will make manure for the poorer, upland portions of the farm.
“It would pay you,” said the Deacon, “to draw out 200 or 300 loads of muck from the swamp every year, and compost it with your manure.”
This may or may not be the case. It depends on the composition of the muck, and how much labor it takes to handle it.
“What you should do,” said the Doctor, “is to commence at the creek, and straighten it. Take a gang of men, and be with them with yourself, or get a good foreman to direct operations. Commence ata, and straighten the creek tob, and frombtoc(see map on next page). Throw all the rich, black muck in a heap by itself, separate from the sand. You, or your foreman, must be there, or you will not get this done. A good ditcher will throw out a great mass of this loose muck and sand in a day; and you want him to dig, not think. You must do the thinking, and tell him which is muck, and which is only sand and dirt. When thrown up, this muck, in our dry, hot climate, will, in the course of a fewmonths, part with a large amount of water, and it can then be drawn to the barns and stables, and used for bedding, or for composting with manure. Or if you do not want to draw it to the barn, get some refuse lime from the lime-kiln, and mix it with the muck after it has been thrown up a few weeks, and is partially dry. Turn over the heap, and put a few bushels of lime to every cord of the muck, mixing the lime and muck together, leaving the heap in a compact form, and in good shape, to shed the rain.
“When you have straightened, and cleaned out, and deepened the creek,” continued the Doctor, “commence atzon the new creek, and cut a ditch through the swamp toy. Throw the muck on one side, and the sand on the other. This will give you some good, rich muck, and at the same time drain your swamp. Then cut someunder-drainsfromytowards the higher land atw,v, andh, and fromftox. These will drain your land, and set free the inert plant-food, and such crops of timothy as you will get from this swamp will astonish the natives, and your bill for medical attendance and quinine will sink to zero.”
map of creekMAP OF CREEK.
The Doctor is right. There is money and health in the plan.
Prof. S. W. Johnson, as chemist to the Conn. State Ag. Society, made accurate analyses of 33 samples of peat and muck sent him by gentlemen from different parts of the State. The amount ofpotential ammonia in the chemically dry peat was found to vary from 0.58 in the poorest, to 4.06 per cent in the richest samples. In other words, one deposit of muck may contain seven times as much nitrogen as another, and it would be well before spending much money in drawing out muck for manure to send a sample of it to some good chemist. A bed of swamp-muck, easily accessible, and containing 3 per cent of nitrogen, would be a mine of wealth to any farmer. One ton of such muck, dry, would contain more nitrogen than 7 tons of straw.
“It would be capital stuff,” said the Deacon, “to put in your pig-pens to absorb the urine. It would make rich manure.”
“That is so,” said I, “and the weak point in my pig-breeding is the want of sufficient straw. Pigs use up more bedding than any other animals. I have over 200 pigs, and I could use a ton of dry muck to each pig every winter to great advantage. The pens would be drier, the pigs healthier, and the manure richer.”
The Doctor here interrupted us. “I see,” said he, “that the average amount of ammonia in the 33 samples of dry peat analyzed by Professor Johnson is 2.07 per cent. I had no idea that muck was so rich. Barn-yard manure, or the manure from the horse stables in the cities, contains only half a per cent (0.5) of ammonia, and it is an unusually rich manure that contains one per cent. We are safe in saying that a ton of dry muck, on the average, contains at least twice as much potential ammonia as the average of our best and richest stable-manure.”
“You say,” said the Deacon, “that dry muck contains twice as much ‘potential ammonia’ as manure?”
“Yes,” said the Doctor, “it contains three or four times as much as the half-rotted straw and stalks you call manure.”
“But what do you mean,” asked the Deacon, “by ‘potentialammonia?’”
“It is a term,” said the Doctor, “we used to hear much more frequently than we do now. Ammonia is composed of 14 lbs. of nitrogen and 3 lbs. of hydrogen; and if, on analysis, a guano orother manure was found to contain, in whatever form, 7 per cent of nitrogen, the chemist reported that he found in it 8½ per cent of ‘potential’ ammonia. Dried blood contains no ammonia, but if it contained 14 per cent of nitrogen, the chemist would be justified in saying it contained 17 per cent of potential ammonia, from the fact that the dried blood, by fermentation, is capable of yielding this amount of ammonia. We say a ton of common horse-manure contains 10 or 12 lbs. of potential ammonia. If perfectly fresh, it may not contain a particle of ammonia; but it contains nitrogen enough to produce, by fermentation, 10 or 12 lbs. of ammonia. And when it is said that dry swamp-muck contains, on the average, 2.07 per cent of potential ammonia, it simply means that it contains nitrogen enough to produce this amount of ammonia. In point of fact, I suppose muck, when dug fresh from the swamp, contains no ammonia. Ammonia is quite soluble in water, and if there was any ammonia in the swamp-muck, it would soon be washed out. The nitrogen, or ‘potential ammonia,’ in the muck exists in an inert, insoluble form, and before the muck will yield up this nitrogen to plants, it is necessary, in some way, to ferment or decompose it. But this is a point we will discuss at a future meeting.”
The Doctor has been invited to deliver a lecture on manure before our local Farmers’ Club. “The etymological meaning of the word manure,” he said, “ishand labor, frommain, hand, andouvrer, to work. To manure the land originally meant to cultivate it, to hoe, to dig, to plow, to harrow, or stir it in any way so as to expose its particles to the oxygen of the atmosphere, and thus render its latent elements assimilable by plants.
“When our first parent,” he continued, “was sent forth from the Garden of Eden to till the ground from whence he was taken, he probably did not know that the means necessary to kill the thorns and thistles enhanced the productiveness of the soil, yet such was undoubtedly the case.
“The farmer for centuries was simply a ‘tiller of the ground.’ Guano, though formed, according to some eminent authorities, long ages before the creation of man, was not then known. The coprolites lay undisturbed in countless numbers in the lias, the greensand, and the Suffolk crag. Charleston phosphates were unknown. Superphosphate, sulphate of ammonia, nitrate of soda, and kainit were not dreamed of. Nothing was said about the mineral manure theory, or the exhaustion of the soil. There were no frauds in artificial fertilizers; no Experiment Stations. The earth, fresh from the hands of its Creator, needed only to be ‘tickled with a hoe to laugh with a harvest.’ Nothing was said about the value of the manure obtained from the consumption of a ton of oil-cake, or malt-combs, or bran, or clover-hay. For many centuries, the hoe, the spade, and the rake constituted Adam’s whole stock in trade.
“At length,” continued the Doctor, “a great discovery was made. A Roman farmer—probably a prominent Granger—stumbled on a mighty truth. Manuring the land—that is, hoeing and cultivating it—increased its fertility. This was well known—had been known for ages, and acted upon; but this Roman farmer, Stercutius, who was a close observer, discovered that thedroppings of animalshad the same effect as hoeing. No wonder these idolatrous people voted him a god. They thought there would be no more old-fashioned manuring; no more hoeing.
“Of course they were mistaken,” continued the Doctor, “our arable land will always need plowing and cultivating to kill weeds. Manure, in the sense in which we now use the term, is only a partial substitute for tillage, and tillage is only a partial substitute for manure; but it is well to bear in mind that the words mean the same thing, and the effects of both are, to a certain extent, identical. Tillage is manure, and manure is tillage.”
This is not the place to discuss the merits, or demerits, of fallowing. But an intelligent Ohio farmer writes me: —“I see that you recommend fallow plowing, what are your reasons? Granting that theimmediateresult is an increased crop, is not the land impoverished? Will not the thorough cultivation of corn, or potatoes, answer as well?” And a distinguished farmer, of this State, in a recent communication expressed the same idea—that summer-fallowing would soon impoverish the land. But if this is the case, the fault is not in the practice of summer-fallowing, but in growing too many grain crops, and selling them, instead of consuming them on the farm. Take two fields; summer-fallow one, and sow it to wheat. Plant the other to corn, and sow wheat after it in the fall. You get, say 35 bushels of wheat per acre from the summer-fallow. From the other field you get, say, 30 bushels of shelled corn per acre, and 10 bushels of wheat afterwards. Now, where a farmer is in the habit of selling all his wheat, and consuming all his corn on the farm, it is evident that the practice of summer-fallowing will impoverish the soil more rapidly than the system of growing corn followed by wheat—and for the simple reason that more wheat is sold from the farm. If no more grain is sold in one case than in the other, the summer-fallowing will not impoverish the soil any more than corn growing.
My idea of fallowing is this:—The soil and the atmosphere furnish, on good, well cultivated land, plant-food sufficient, say, for 15 bushels of wheat per acre,every year. It will be sometimes more, and sometimes less, according to the season and the character of the soil, but on good, strong limestone land this may be taken as about the average. To grow wheat every year in crops of 15 bushels per acre, would impoverish the soil just as much as to summer-fallow and get 30 bushels of wheat every other year. It is the same thing in either case. But in summer-fallowing, we clean the land, and theprofitsfrom a crop of 30 bushels per acre every other year, are much more than from two crops of 15 bushels every year. You know that Mr. Lawes has a field of about thirteen acres that he sows with wheat every year. On the plot that receives no manure of any kind, the crop, for twenty years, averaged 16¼ bushels per acre. It is plowed twice every year, andthe wheat is hand-hoed in the spring to keep it clean. A few years ago, in a field adjoining this experimental wheat field, and that is of the same character of land, he made the following experiment. The land, after wheat, was fallowed, and then sown to wheat; then fallowed the next year, and again sown to wheat, and the next year it was sown to wheat after wheat. The following is the result compared with the yield of the continuously unmanured plot in the experimental field that is sown to wheat every year:
No. 2—Wheat after wheat
2.Year—No. 1—Wheat after fallow
No. 2—Wheat after wheat
3.Year—No. 1—Fallow after wheat
No. 2—Wheat after wheat
4.Year—No. 1—Wheat after fallow
No. 2—Wheat after wheat
No. 2—Wheat after wheat
Taking the first four years, we have a total yield from the plot sown every year of 66 bushels 2¼ pecks, and from the two crops alternately fallowed, a total yield of 79 bushels. The next year, when wheat was sown after wheat on the land previously fallowed, the yield was almost identical with the yield from the plot that has grown wheat after wheat for so many years.
So far, these results do not indicate any exhaustion from the practice of fallowing. On the other hand, they tend to show that we can getmorewheat by sowing it every other year, than by cropping it every year in succession. The reason for this may be found in the fact that in a fallow the land is more frequently exposed to the atmosphere by repeated plowings and harrowings; and it should be borne in mind that the effect of stirring the land is not necessarily in proportion to the total amount of stirring, but is according to the number of times that fresh particles of soil are exposed to the atmosphere. Two plowings and two harrowings in one week, will not do as much good as two plowings and two harrowings, at different times in the course of three or four months. It is for this reason that I object, theoretically, to sowing wheat after barley. We often plow the barley stubble twice, and spend considerable labor in getting the land into good condition; but it is generally all done in the course of ten days or two weeks. We do not get any adequate benefit for this labor. We can kill weeds readily at this season, (August), but the stirring of the soil does not develope the latent plant-food to the extent it would if thework was not necessarily done in such a limited period. I saytheoretically, for in point of fact Idosow wheat after barley. I do so because it is very convenient, and because it is more immediately profitable. I am satisfied, however, thatin the endit would be more profitable to seed down the barley with clover.
Wemustraise larger crops; and to do this we must raise them less frequently. This is the key-note of the coming improved system of American agriculture, in all sections where good land is worth less than one hundred dollars per acre. In the neighborhood of large cities, and wherever land commands a high price, we must keep our farms in a high state of fertility by the purchase of manures or cattle foods. Those of us in the interior, where we can not buy manure, must raise fewer grain crops, and more clover. We must aim to raise 40 bushels of wheat, 50 bushels of barley, 80 bushels of oats, and 100 bushels of shelled corn, and 5 bushels of clover-seed per acre. That this can be done on good, well-drained land, from the unaided resources of the farm, I have no doubt. It may give us no more grain to sell than at present, but it will enable us to produce much more mutton, wool, beef, cheese, butter, and pork, than at present.
“But, then, will there be a demand for the meat, wool, etc.?” The present indications are highly favorable. But we must aim to raisegoodmeat. The low-priced beef and mutton sold in our markets are as unprofitable to the consumer as they are to the producer. We must feed higher, and to do this to advantage we must have improved stock. There is no profit in farming without good tillage, larger crops, improved stock, and higher feeding. The details will be modified by circumstances, but the principles are the same wherever agri-cultureis practised.
I have never yet seen a “worn-out” or “exhausted farm.” I know many farms that are “run down.” I bought just such a farm a dozen or more years ago, and I have been trying hard, ever since, to bring it up to a profitable standard of productiveness—and am still trying, and expect to have to keep on trying so long as I keep on farming. The truth is, there never was a farm so rich, that the farmer did not wish it was richer.
I have succeeded in making the larger part of my farm much more productive than it ever was before, since it was cleared from the original forest. But it is far from being as rich as I want it. The truth is, God sent us into this world to work, and He has given us plenty to do, if we will only do it. At any rate, this is true of farming. He has not given us land ready to our hand. The man who first cleared up my farm, had no easy task. He fairly earned all the good crops he ever got from it. I have never begrudged him one particle of the “natural manure” he took out of the land, in the form of wheat, corn, oats, and hay. On the dry, sandy knolls, he probably got out a good portion of this natural manure, but on the wetter and heavier portions of the farm, he probably did not get out one-hundredth part of the natural manure which the land contained.
Now, when such a farm came into my possession, what was I to do with it?
“Tell us what you did,” said the Doctor, “and then, perhaps, we can tell you what you ought to have done, and what you ought to have left undone.”
“I made many mistakes.”
“Amen,” said the Deacon; “I am glad to hear you acknowledge it.”
“Well,” said the Doctor, “it is better to make mistakes in trying to do something, than to hug our self-esteem, and fold our hands in indolence. It has been said that critics are men who have failed in their undertakings. But I rather think the most disagreeable, and self-satisfied critics, are men who have never done anything, or tried to do anything, themselves.”
The Deacon, who, though something of an old fogy, is a good deal of a man, and possessed of good common sense, and muchexperience, took these remarks kindly. “Well,” said he to me, “I must say that your farm has certainly improved, but you did things so differently from what we expected, that we could not see what you were driving at.”
“I can tell you what I have been aiming at all along. 1st. To drain the wet portions of the arable land. 2d. To kill weeds, and make the soil mellow and clean. 3d. To make more manure.”
“You have also bought some bone-dust, superphosphate, and other artificial manures.”
“True; and if I had had more money I would have bought more manure. It would have paid well. I could have made my land as rich as it is now in half the time.”
I had to depend principally on the natural resources of the land. I got out of the soil all I could, and kept as much of it as possible on the farm. One of the mistakes I made was, in breaking up too much land, and putting in too much wheat, barley, oats, peas, and corn. It would have been better for my pocket, though possibly not so good for the farm, if I had left more of the land in grass, and also, if I had summer-fallowed more, and sown less barley and oats, and planted less corn.
“I do not see how plowing up the grass land,” said the Deacon, “could possibly be any better for the farm. You agricultural writers are always telling us that we plow too much land, and do not raise grass and clover enough.”
“What I meant by saying that it would have been better for my pocket, though possibly not so good for the farm, if I had not plowed so much land, may need explanation. The land had been only half cultivated, and was very foul. The grass and clover fields did not give more than half a crop of hay, and the hay was poor in quality, and much of it half thistles, and other weeds. I plowed this land, planted it to corn, and cultivated it thoroughly. But the labor of keeping the corn clean was costly, and absorbed a very large slice of the profits.Butthe corn yielded a far larger produce per acre than I should have got had the land lain in grass. And as all this produce was consumed on the farm, we made more manure than if we had plowed less land.”
I have great faith in the benefits of thorough tillage—or, in other words, of breaking up, pulverizing, and exposing the soil to the decomposing action of the atmosphere. I look upon a good, strong soil as a kind of storehouse of plant-food. But it is not an easy matter to render this plant-food soluble. If it were any less soluble than it is, it would have all leached out of the land centuries ago. Turning over, and fining a manure-heap, if other conditionsare favorable, cause rapid fermentation with the formation of carbonate of ammonia, and other soluble salts. Many of our soils, to the depth of eight or ten inches, contain enough nitrogenous matter in an acre to produce two or three thousand pounds of ammonia. By stirring the soil, and exposing it to the atmosphere, a small portion of this nitrogen becomes annually available, and is taken up by the growing crops. And it is so with the other elements of plant-food. Stirring the soil, then, is the basis of agriculture. It has been said that we must return to the soil as much plant-food as we take from it. If this were true, nothing could be sold from the farm. What we should aim to do, is to develop as much as possible of the plant-food that lies latent in the soil, and not to sell in the form of crops, cheese, wool, or animals, any more of this plant-food than we annually develop from the soil. In this way the “condition” of the soil would remain the same. If we selllessthan we develop, the condition of the soil will improve.
By “condition,” I mean the amount ofavailableplant-food in the soil. Nearly all our farms are poorer in plant-food to-day than when first cleared of the original forest, or than they were ten, fifteen, or twenty years later. In other words, the plants and animals that have been sold from the farm, have carried off a considerable amount of plant-food. We have taken far more nitrogen, phosphoric acid, potash, etc., out of the soil, than we have returned to it in the shape of manure. Consequently, the soil must contain less and less of plant-food every year. And yet, while this is a self-evident fact, it is, nevertheless, true that many of these self-same farms are more productive now than when first cleared, or at any rate more productive than they were twenty-five or thirty years ago.
Sometime ago, the Deacon and I visited the farm of Mr. Dewey, of Monroe Co., N.Y. He is a good farmer. He does not practice “high farming” in the sense in which I use that term. His is a good example of what I term slow farming. He raises large crops, but comparatively few of them. On his farm of 300 acres, he raises 40 acres of wheat, 17 acres of Indian corn, and 23 acres of oats, barley, potatoes, roots, etc. In other words, he has 80 acres in crops, and 220 acres in grass—not permanent grass. He lets it lie in grass five, six, seven, or eight years, as he deems best, and then breaks it up, and plants it to corn. The land he intends to plant to corn next year, has been in grass for seven years. He will put pretty much all his manure on this land. After corn, it will be sown to oats, or barley; then sown to wheat, and seeded down again. It will then lie in grass three, four, five, six, or sevenyears, until he needs it again for corn, etc. This is “slow farming,” but it is also good farming—that is to say, it gives large yields per acre, and a good return for the labor expended.
The soil of this farm is richer to-day inavailableplant-food than when first cleared. It produces larger crops per acre.
Mr. D. called our attention to a fact that establishes this point. An old fence that had occupied the ground for many years was removed some years since, and the two fields thrown into one. Every time this field is in crops, it is easy to see where the old fence was, by the short straw and poor growth on this strip, as compared with the land on each side which had been cultivated for years.
This is precisely the result that I should have expected. If Mr. D. was a poor farmer—if he cropped his land frequently, did not more than half-cultivate it, sold everything he raised, and drew back no manure—I think the old fence-strip would have given the best crops.
The strip of land on which the old fence stood in Mr. Dewey’s field, containedmoreplant-food than the soil on either side of it. But it was not available. It was not developed. It was latent, inert, insoluble, crude, and undecomposed. It was so much dead capital. The land on either side which had been cultivated for years, produced better crops. Why? Simply because the stirring of the soil had developedmoreplant-food than had been removed by the crops. If the stirring of the soil developed 100 lbs. of plant-food a year, and only 75 lbs. were carried off in the crops—25 lbs. being left on the land in the form of roots, stubble, etc.—the land, at the expiration of 40 years, would contain, provided none of it was lost, 1,000 lbs. moreavailableplant-food than the uncultivated strip. On the other hand, the latter would contain 3,000 lbs. more actual plant-food per acre than the land which had been cultivated—but it is in an unavailable condition. It is dead capital.
I do not know that I make myself understood, though I would like to do so, because I am sure there is no point in scientific farming of greater importance. Mr. Geddes calls grass the “pivotal crop” of American agriculture. He deserves our thanks for the word and the idea connected with it. But I am inclined to think thepivoton which our agriculture stands and rotates, lies deeper than this. The grass crop creates nothing—developes nothing. The untilled and unmanured grass lands of Herkimer County, in this State, are no richer to-day than they were 50 years ago. The pastures of Cheshire, England, except those that have been top-dressed with bones, or other manures, are no more productive thanthey were centuries back. Grass alone will not make rich land. It is a good “savings bank.” It gathers up and saves plant-food from running to waste. It pays a good interest, and is a capital institution. But the real source of fertility must be looked forin the stores of plant-food lying dormant in the soil. Tillage, underdraining, and thorough cultivation, are the means by which we develop and render this plant-food available. Grass, clover, peas, or any other crop consumed on the farm, merely affords us the means of saving this plant-food and making it pay a good interest.
If we have the necessary materials, it is not a difficult matter to make manure; in fact, the manure will make itself. We sometimes need to hasten the process, and to see that none of the fertilizing matter runs to waste. This is about all that we can do. We cannot create an atom of plant-food. It is ready formed to our hands; but we must know where to look for it, and how to get it in the easiest, cheapest, and best way, and how to save and use it. The science of manure-making is a profound study. It is intimately connected with nearly every branch of agriculture.
If weeds grow and decay on the land, they make manure. If we grow a crop of buckwheat, or spurry, or mustard, or rape, or clover, and mow it, and let it lie on the land, it makes manure; or if we plow it under, it forms manure; or if, after it is mown, we rake up the green crop, and put it into a heap, it will ferment, heat will be produced by the slow combustion of a portion of the carbonaceous and nitrogenous matter, and the result will be a mass of material, which we should all recognize as “manure.” If, instead of putting the crop into a heap and letting it ferment, we feed it to animals, the digestible carbonaceous and nitrogenous matter will be consumed to produce animal heat and to sustain the vital functions, and the refuse, or the solid and liquid droppings of the animals, will be manure.
If the crop rots on the ground, nothing is added to it. If it ferments, and gives out heat, in a heap, nothing is added to it. If itis passed through an animal, and produces heat, nothing is added to it.
I have heard people say a farmer could not make manure unless he kept animals. We might with as much truth say a farmer cannot make ashes unless he keeps stoves; and it would be just as sensible to take a lot of stoves into the woods to make ashes, as it is to keep a lot of animals merely to make manure. You can make the ashes by throwing the wood into a pile, and burning it; and you can make the manure by throwing the material out of which the manure is to be made into a pile, and letting it ferment. On a farm where neither food nor manure of any kind is purchased, the only way to make manure is toget it out of the land.
“From the land and from the atmosphere,” remarked the Doctor. “Plants get a large portion of the material of which they are composed from the atmosphere.”
“Yes,” I replied, “but it is principally carbonaceous matter, which is of little or no value as manure. A small amount of ammonia and nitric acid are also brought to the soil by rains and dews, and a freshly-stirred soil may also sometimes absorb more or less ammonia from the atmosphere; but while this is true, so far as making manure is concerned, we must look to the plant-food existing in the soil itself.
“Take such a farm as Mr. Dewey’s, that we have already referred to. No manure or food has been purchased; or at any rate, not one-tenth as much as has been sold, and yet the farm is more productive to-day than when it was first cleared of the forest. He has developed the manure from the stores of latent plant-food previously existing in the soil and this is the way farmers generally make manure.”
“If,” said I, “you should put a ton of cut straw in a heap, wet it, and let it rot down into manure; and should place in another heap a ton of cut corn-fodder, and in another heap a ton of cut clover-hay, wet them, and let them also rot down into manure; and in another heap a ton of pulped-turnips, and in another heap a ton of corn-meal, and in another heap a ton of bran, and in another a ton of malt-sprouts, and let them be mixed with water, and so treated that they will ferment without loss of ammonia or other valuable plant-food, I think no one will say that all these different heaps of manure will have the same value. And if not, why not?”