By referring to the invoice of your most common land, you will see that Westover is richer in phosphorus, in magnesium, and in calcium, than Poorland Farm. But, while your soil contains a half more of that rare element phosphorus, ours contains a half more of the abundant element potassium. In the supply of nitrogen we have a distinct advantage, because our soil contains nearly three times as much as your most common cultivated land, and even twice as much as your level upland soil, which you consider too poor for farming, but in which phosphorus and not nitrogen must be the first limiting element, the same as with ours.
The fact is that the nitrogen problem in the East was one of the reasons why we have chosen to locate in Southern Illinois. I am confident that the level lands I saw about Blairville and over in Maryland are more deficient in organic matter and nitrogen than your uncultivated level upland, and probably even more deficient than your common gently sloping cultivated lands, because of your long rotation with much opportunity for nitrogen fixation by such legumes will grow in your meadows and pastures, including the red clover which you regularly sow, the white clover, which is very persistent, and the Japan clover, which it seems to me has really benefited you more than the others.
To me a difference in nitrogen content of two thousand pounds per acre signifies a good deal. It plainly signifies a hundred years' of "working the soil for all that's in it," beyond what has yet been done to our "Egypt." The cost of two thousand pounds of nitrogen in sodium nitrate would be at least $300 and even that would not include the organic matter, which has value for its own sake because of the power of its decomposition products to liberate the mineral elements from the soil, as witness the most common upland soils of St. Mary county, Maryland, with a phosphorus content reduced to one hundred and sixty pounds per acre in two million pounds of the ignited soil. The ten-inch plows of Maryland, the twelve-inch of Southern Illinois, the fourteen-inch of the corn belt, and the sixteen-inch of the newer regions of the Northwest, signify something as to the influence of organic matter upon the horsepower required in tillage; and the organic matter also has a value because it increases the power of the soil to absorb and retain moisture and to resist surface washing and "running together" to form the hard surface crust.
To think of applying two thousand pounds of nitrogen by plowing under two hundred tons of manure or forty tons of clover per acre at least requires a "big think," as my Swede man would say.
Of course, with our western life and cosmopolitan population, where "a man's a man for a' that," mother feels that it would not be easy for us to fit into your somewhat distinctly stratified society. We would not be "colored" if we could, and perhaps we could not be aristocratic if we would; and the opportunity to become, or, perhaps I should say, to remain, "poor white trash," though wide open, is not very alluring. I realize, of course, that there are some whole-souled people like the West's and Thornton's, but I also found some of the tribe of Jones, and I have much doubt as to the social standing of one who would feel obliged to demonstrate that he could spread more manure in a day than his hired nigger.
My Swede and I are like brothers; we clean stables together and talk politics, science, and agriculture. In fact he is as much interested as I am in the building up of Poorland Farm, and has already contributed some very practical suggestions. I pay him moderate wages and a small percentage of the farm receipts after deducting certain expenses which he can help to keep as low as possible, such as for labor, repairs, and purchase of feed and new tools, but without deducting the taxes or interest on investment or the cost of any permanent improvements, such as the expense for limestone, phosphate, new fences and buildings, and breeding stock.
Referring again to the invoice of the soil, I may say that the percentage of the mineral plant foods increases with depth, the same as in your soil, but not to such an extent, and with one exception. The phosphorus content of our surface soil is greater than that of the subsurface, but below the subsurface the phosphorus again increases. This is probably due to the fact that the prairie grasses that grew here for centuries extracted some phosphorus from the subsurface in which their roots fed to some extent, and left it in the organic residues which accumulated in the surface soil.
Aside from the difference in organic matter, the physical character of our soil is distinctly inferior to the loam soils about Blairville and Leonardtown. We have a very satisfactory silt loam surface, but the structure of our subsoil is quite objectionable. It is a tight clay through which water passes very slowly, so slowly that the practicability of using tile-drainage is still questioned by the State University, although the experiments which the University soil investigators have already started in several counties here in "Egypt" will ultimately furnish us positive knowledge along this line.
As for me, I purpose making no experiments, whatever. I do not see how I or any other farmer can afford to put our limited funds into experiments, especially when we often lack the facilities for taking the exact and complete data that are needed. It takes time and labor and some equipment to make accurate measurements, to weigh every pound of fertilizer applied and every crop carefully harvested from measured and carefully seeded areas, especially selected because of their uniform and representative character. I think this is public business and it is best done by the State for the benefit of all.
I have heard narrow politicians call it class legislation to appropriate funds for such agricultural investigations, but the fact is that to investigate the soil and to insure an abundant use of limestone, phosphate, or other necessary materials required for the improvement and permanent maintenance of the fertility of the soil is legislation for all the people, both now and hereafter. Would that our Statesmen would think as much of maintaining this most important national resource, as they do of maintaining our national honor by means of battleships and an army and navy supported at an expense of three hundred million dollars a year, sufficient to furnish ten tons of limestone to every acre of Virginia land, an amount twenty times the Nation's appropriation for agriculture; and even this is largely used in getting new lands ready for the bleeding process, instead of reviving those that have been practically bled to death.