
doi: 10.1007/bf02149713
The P-supplying power of triple superphosphate, three apatitic rock phospates and a calcined aluminum rock phosphate were tested by measuring the quantities of fertilizer P recovered in soybean and in four chemical extractants, after 3-day and 75-day periods of contact between soil and fertilizer.
Reaction rate, Relative efficiency, Rock phosphate
Reaction rate, Relative efficiency, Rock phosphate
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