. Productive soils; the fundamentals of successful soil management and profitable crop production. Soils. Fig. 136. 1 ^^ 1 'k SBii^..^^^ '^**** ^plit ^Hj ^ ^ ^^^ ' - ' *^ «S%>,:|JH|H '5 *. Fig. 135.:—For corn (in a pot test) this peat soil responded to phosphate treatment. O, no treatment; A^, nitrogen fertilizer; P, phosphate treatment; K, potash; PK, phosphate and potash. (See Figure 136.) Fig. 136.—For cabbage, potash fertilizer gave the greatest response. Same soil as in Figure 135. ^, response to phosphate; ^, response to potash. Wood ashes are excellent for acid, peat soils. From one
. Productive soils; the fundamentals of successful soil management and profitable crop production. Soils. Fig. 136. 1 ^^ 1 'k SBii^..^^^ '^**** ^plit ^Hj ^ ^ ^^^ ' - ' *^ «S%>,:|JH|H '5 *. Fig. 135.:—For corn (in a pot test) this peat soil responded to phosphate treatment. O, no treatment; A^, nitrogen fertilizer; P, phosphate treatment; K, potash; PK, phosphate and potash. (See Figure 136.) Fig. 136.—For cabbage, potash fertilizer gave the greatest response. Same soil as in Figure 135. ^, response to phosphate; ^, response to potash. Wood ashes are excellent for acid, peat soils. From one to two tons per acre is a common application.'' No mixture of commercial fertilizers gives the results on acid marsh soils as do ashes. ^ When containing 30 to 40 per cent moisture. ^ -. 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 Weir, Wilbert Walter, 1882-. Philadelphia London, J. B. Lippincott company
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectsoils, bookyear1920
