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Research on varietal tolerance for phosphorus-deficient rice soils

, : Research on varietal tolerance for phosphorus-deficient rice soils. International Rice Research Newsletter 4(1): 9-10

Tabulated data are presented for 24 varieties on (1) grain yield from a P-deficient soil (2 p.p.m. P available) at IRRI and from the same soil to which a basal application of 25 kg P2O5/ha had been added and (2) on the difference in yields from the soil with and without P.


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