V. IMPROVEMENT IN AND AROUND THE HOME.
The change in this direction in a single generation has been most marked, and is one of the surest signs of prosperity. The log cabin has given place to a substantial and, in many cases, an elegant home. The irregular and ill-shaped yards, fenced with rails, which surrounded both house and barn, and in which hogs and cattle were kept, with no shelter but a rail pen with straw roof, have disappeared, and rectangular lots enclosed with neat fences and good barns and piggeries have taken their place. The wood-pile has retired from the front yard, and is now sheltered in a woodshed adjoining the kitchen; and a neat lawn with flowers and shrubbery is no longer the exception, but the rule. A good garden, in which the newer and improved vegetables have taken the place of the old sorts, and a berry patch, well cared for, afford the luxuries which they alone can give for a period of many weeks each season. The water is no longer carried from a remote spring, but good wells and cisterns are placed conveniently, many of them so that the pump is in the kitchen or under a porch attached to the house. The cellar is usually floored with cement, and the stairs leading to it are of easy grade; while good walks of plank or cement make it a pleasure to pass from the house to the surrounding outbuildings.
Another line in which very great improvement is shown is in maintaining the fertility of the soil. The old method was to exhaust the fertility of a field and then clear a new one; and it is doubtful if one farmer in a hundred could have answered the question, “Why does land become sterile after long cultivation?” for they had no conception of what the chemical elements of the soil were which are necessary to its fertility. There are two theories of fertilizing and fertility: one, that the soil is a mine to be worked out, and which will inevitably become unproductive in the process; the other, that it is a laboratory in which, under the intelligent management of man, forces can be set at work which will maintain and develop a perpetual fertility. Malthus, more than a century ago, announced that the time would come before long when the people of the earth would starve because they had outgrown the fertility of the soil and its productive capacity; but after long cultivation, we find it possible to produce on less than half the cultivatable land enough not only to feed our own nation, but the world at large, and there is no questioning the accurateness of the laboratory theory as opposed to the mine theory.
The first improvement along this line was in the better saving and utilizing of animal manures; but when it was found that these were insufficient, science came to the help of the farmer. The chemist analyzed both crop and soils, ascertaining what was needed, and then the world was searched for the materials necessary. The elements which formed our plants were found to be fifteen in number, but of these it was found that it was necessary to furnish only three,—nitrogen, phosphoric acid, and potash. Nitrogen was known to exist in inexhaustible quantities in the atmosphere, forming seventy-six per cent of its composition; but the question was long unsolved: “Can growing plants appropriate atmospheric nitrogen?” Finally, it was discovered that plants of the Leguminosæ family—of which clover is the best type and of greatest value for this purpose to the farmer—could appropriate nitrogen from the atmosphere; and after careful research, with the aid of the microscope, it was discovered that this appropriation came about through the agency of bacteria in the roots. This fact connected with the clover plant is one of immense importance to the farmer, because nitrogen is not only the most expensive element of fertility to purchase, but is likely to be lost both through evaporation and leaching. So it can be seen that clover is one of the most valuable plants which can be grown on the farm, for the reason that the crop can be utilized as food for stock, while still great benefit inures to the soil, as the fertility is largely stored in the roots, which cannot be used for any other purpose, and as by the action of these roots the mechanical condition of the soil is greatly improved. Further, the dense shade the plant affords induces chemical action in the soil, which makes plant food available that would otherwise remain inert. One of the most wonderful things connected with fertility is that God has so locked it up in the earth that no greedy generation can exhaust it, and that the greatest source of fertility is the atmosphere, whose secrets are just being discovered.
An English scientist has recently announced that by the aid of electricity, furnished by cheap water-power, nitrates can be manufactured directly from the atmosphere so as to reduce their cost to less than one fourth what it has heretofore been. Again, the intelligent use of clover will enable the farmer to produce his own nitrogen and reduce the cost of chemical fertilizers to one half what it usually is when containing nitrogen. This brings us to the question of commercial fertilizers. With the single exception of guano, they are a product of the last third of the century. The first step toward the use of commercial fertilizers was by analyzing our barnyard manures. When the chemist discovered that a ton or more which the farmer drew out laboriously with two horses to the field contained but twenty or thirty pounds of actual plant food,—the remainder being water, sand, and other dead matter,—the next step was to combine the three elements essential to a perfect fertilizer in such proportions that a single sack would hold enough manure for an acre of ground; and in tens of thousands of cases, the application of this amount of fertilizer has increased the wheat crop from five to fifteen bushels per acre, doubling the grass crop which followed, which in turn, and through the influence of the fertilizer, formed a sward which, by its decay, fertilized a third crop when it was turned under in the rotation.
The element in fertilizers of next importance to nitrogen is phosphoric acid, and the first source from which this was obtained was the bones of animals. But the supply from animals slaughtered was entirely insufficient; and so the great plains of the West were gleaned, and tens of thousands of tons of buffalo bones were gathered and shipped East to fertilize our farms. But soon this source began to wane; then two other sources, practically inexhaustible, of this indispensable element were discovered,—the phosphate rocks of the South and the iron slag from furnaces, each of which is found to contain a large per cent of phosphoric acid; and when the rock is dissolved by acids and the slag ground to an impalpable powder by machinery, the fertilizing elements in both are found to be as available and valuable as that from bones. The supply of potash was obtained at first from wood ashes, which the clearing of the farms and the universal use of wood as fuel made abundant. But later, when these sources were no longer sufficient, potash salts were found in large quantities where they could be mined from the earth, so that now there seems to be in sight an inexhaustible supply of the elements needed for plant food. Like almost every reform, the use of commercial fertilizers was opposed bitterly by many farmers, and statements were made by them that their effects on the soil were like those of whiskey or other stimulants on the body, and that the ultimate result of their use would be that the soil would become barren. Many refused, to use them at all; others, after a single trial made without intelligence, denounced them as humbugs. But as they saw on the farms of their neighbors the wonderful results from their use, they have been gradually led to adopt them, until now, with most farmers, the question no longer is, “Can I afford to use commercial fertilizers?” but rather, “Can I afford to do without them?”