INFLUENCE OF ZINC ON GROWTH, DRY MATTER PRODUCTION, NUTRIENT UPTAKE AND YIELD IN CERTAIN RICE VARIETIES

K. Balakrishnan S. Gepalakrishnan and N. Natarajaratnam

doi:https://doi.org/10.29321/MAJ.10.A02340

Madras Agricultural Journal

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INFLUENCE OF ZINC ON GROWTH, DRY MATTER PRODUCTION, NUTRIENT UPTAKE AND YIELD IN CERTAIN RICE VARIETIES

Author: K. Balakrishnan S. Gepalakrishnan and N. Natarajaratnam,

p-ISSN: 0024-9602, e-ISSN:2582-5321, Vol: 72, Issue: jan-jan,

DOI:https://doi.org/10.29321/MAJ.10.A02340

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Abstract

A field experiment was conducted to study the response of rice varieties IET 3280, CO. 29 with 0, 12.5, 25.0 and kg/ha Zinc sulphate. The results indicated that the maximum shoot length and shoot dry weight was recorded at 25 kg/ha level in all the varieties. The root length and root weight showed only phenomenal increase to the applied zinc. Zinc application at 25 kg/ha improved the N, P and K uptake and a decrease trend was noticed at 50 kg/ha level. However, the content of zinc increased with increased level of zinc application upto 50 kg/ha level. But the maximum grain yield was recorded at 25 kg/ha level of zinc supplements.

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