This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1910 edition. Excerpt: ...rock, it might be stated that the Experiment Station at Auburn has, during the past few years, carried out under its supervision more than one hundred cooperative soil and crop tests in a great many different localities in the State with a view to determining the comparative efficiency of raw phosphate and acid phosphate for fertilizing purposes. These tests have been carried out upon quite a variety of soils, and upon most soils the Raw Phosphate Has Failed To Give Anything LIKE AS GOOD RESULTS AS THE ACID PHOSPHATE. "In the case of acid phosphate, the ready solubility of most of the phosphoric acid contained therein promotes its rapid and thorough distribution through the top layer of the soil, and hence the plant food is so well disseminated that it is brought within...

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