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High-grade Fertilizers

Categories: HOME-MIXING OF FERTILIZERS

A high-grade fertilizer is not necessarily a

high-priced one. What we want in a fertilizer is a high content of the

plant-food needed, together with desirable availability. If only

phosphoric acid is wanted, a 14 per cent, or 16 per cent, acid

phosphate is high-grade because it contains as many pounds of available

phosphoric acid in a ton as the public can buy in a large way. A 10 per

cent acid phosphate is low-grade. The effort is to escape paying

freight, and other cost of handling, on waste material as far as

possible. Generally speaking, the higher the percentages of plant-food

in a fertilizer, the cheaper per pound is the plant-food. A low-grade

fertilizer rarely fails to be an expensive one because the expense of

handling adds unduly to the price per pound of the small content of

plant-food.



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