Summary
By contrast of strong phosphorus-zinc antagonism in upland crops, P strongly enhanced Zn uptake in flooded rice on a calcareous soil. Radioisotopic studies indicated increase to occur preferentially from applied Zn fertilizer. Phosphorus appeared to stimulate uptake predominantly by enhancing Zn concentration in soil solution and by increasing metabolic Zn absorption by plant roots. The ‘A’ value was not a reliable measure of labile soil Zn for rice as it markedly changed with levels of P and Zn fertilizers.
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No. VI in the series: Phosphorus-zinc interaction in rice.
No. VI in the series: Phosphorus-zinc interaction in rice.
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Chaudhry, F.M., Hussain, F. & Rashid, A. Micronutrient availability to cereals from calcareous soils. Plant Soil 47, 297–302 (1977). https://doi.org/10.1007/BF00010395
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DOI: https://doi.org/10.1007/BF00010395