JEQ Journal of Natural Resources and Life Sciences Education
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Fig. 2. The CaCl2–extractable total phosphorus (CaCl2–TP) in relation to soil test phosphorus (STP) as determined by (a) NaHCO3–extractable phosphorus (Olsen P) and (b) ammonium lactate–extractable phosphorus (P-AL).





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The SCI Journals Agronomy Journal Crop Science
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Journal of Natural Resources
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