Influence of Nutrient Ratios of NPK on Rice Yield and Uptake of Phosphorus Using Tracer Technique

V. S. KRISHNAMOORTHY; S. RAMANATHAN; M. EDWARD RAJA and K. K. KRISHNAMOORTHY

doi:https://doi.org/10.29321/MAJ.10.A03264

Madras Agricultural Journal

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Influence of Nutrient Ratios of NPK on Rice Yield and Uptake of Phosphorus Using Tracer Technique

Author: V. S. KRISHNAMOORTHY, S. RAMANATHAN, M. EDWARD RAJA and K. K. KRISHNAMOORTHY,

p-ISSN: 0024-9602, e-ISSN:2582-5321, Vol: 64, Issue: dec-dec,

DOI:https://doi.org/10.29321/MAJ.10.A03264

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Abstract

Seven combinations of NPK with P applied as P-32 tagged superphosphate were studied for their effect on yield and uptake of phosphorus by four rice varieties viz., CO. 33. CO. 34. CO.35 and Pusa 221. N: POs: KO ratio of 120: 60: 60 (2:1:1) appeared sufficient among the ratios tested for all the varieties studied.

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