P-CaCl2 or P-PAE
Definition
P-CaCl2 is the result of determining the amount of phosphate available to the plant, using CaCl2 (a light salt). P-CaCl2 (or P-PAE) indicates how much phosphate is directly available to the crop.
The laboratory result is given in mg P/kg. The unit of measurement is usually kg P/ha.
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