. The chemistry of farm practice. Agricultural chemistry. MIXING OF FERTILIZERS 163 fertilizers lies in the fact that the sources from which the phosphorus, nitrogen, and potash are derived are then known. A thorough knowledge of the relative availabilities of the different sources of commercial fertilizers, and of their actions under different crops, will enable the farmer to select wisely materials the fertilizing values of which are known. 113. Fertilizers may be Thoroughly Mixed on the Farm. The mixing of fertilizers can be thoroughly done on any farm, as has been shown by the South Caroli
. The chemistry of farm practice. Agricultural chemistry. MIXING OF FERTILIZERS 163 fertilizers lies in the fact that the sources from which the phosphorus, nitrogen, and potash are derived are then known. A thorough knowledge of the relative availabilities of the different sources of commercial fertilizers, and of their actions under different crops, will enable the farmer to select wisely materials the fertilizing values of which are known. 113. Fertilizers may be Thoroughly Mixed on the Farm. The mixing of fertilizers can be thoroughly done on any farm, as has been shown by the South Carolina Experi- ment Station. When practicable, an out-building with a I. A B Fig. 63.—Diagram showing relative composition and value of fertilizers: A, low grade; B, medium grade; C, high grade. (Farmers' Bulletin 457, U. S. Dept. Agr.) tight floor is preferable for the mixing, because the work can be done when weather conditions would prevent out- side work. If no tight floor is available, one may be made, preferably under a shed, by taking straight-edged boards about 1 inch in thickness, laying them on a level place and keying them up tight. A floor 8 feet wide and 12 feet long, surrounded on three sides by upright boards 12 inches wide, will suffice for the mixing. The raw materials are generally purchased in sacks. If a sufficient quantity is mixed to warrant the purchase in car-load bulk shipments, it will usually be advisable to buy. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Keitt, Thomas Ellison. [from old catalog]. New York, J. Wiley & sons, inc. ; [etc. , etc. ]
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectagriculturalchemistr
