How Soil Reaction Affects the Supply of Plant Foods
Pettinger, N. A.
Shear, G. M. (George Myron), 1905-
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This publication summarizes the effect of acidity and alkalinity on the availability of plant foods and the relation between lime and fertilizers. It features a color chart showing nutrient availability at a range of soil pH levels, and includes a table showing suitable pH levels for various crops.