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Soil analysis: handbook of reference methods
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Type: Book
In the context of environmental concerns, much published data of dubious validity, and the increasing cost of fertilizers, this update of the 1992 edition of this standard laboratory manual for soil testing includes new and modified analysis methods for evaluating the fertility …
"For more than 30 years, soil testing has been widely used as a basis for determining lime and fertilizer needs. Today, a number of procedures are used for determining everything from soil pH and lime requirement, to the level of extractable nutrient elements. And as the number …