. Elementary agriculture of Tennessee, with practical artithmetic . bu. salable per acre. bu. culls per acre. The same soil fertilized with 500 lbs. of complete fertilizer per acre. UNIVERSITY OF TENNESSEE. The rock is ground fine and is then treated with sul- phuric arid, which makes a soluble. As with nitrogen, phosphoric acid is largely used in the early stages of plant growth. Wheat takes up four-fifths of its phos- phoric acid in the first half of the growing period.

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Keywords: ., bookcentury1900, bookdecade1900, booksubjectagriculture, bookyear