Effect of Irrigation Levels and Forms of Manures on Rice Varieties IR 8 and IR 20

A. MOHAMED ALI and Y. B. MORACHAN

doi:https://doi.org/10.29321/MAJ.10.A03394

Madras Agricultural Journal

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Effect of Irrigation Levels and Forms of Manures on Rice Varieties IR 8 and IR 20

Author: A. MOHAMED ALI and Y. B. MORACHAN,

p-ISSN: 0024-9602, e-ISSN:2582-5321, Vol: 61, Issue: aug-aug,

DOI:https://doi.org/10.29321/MAJ.10.A03394

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Abstract

A field experiment in rice conducted during kharif 1970-71 revealed that sub- mergence of land throughout the growing period with a depth of 5 cm water was necessary for higher grain yields. Water requirements from planting to harvest were 1417 mm and 1217 mm for the rice varieties IR 8 and IR 20 for the above treatment. Ammonium sulphate influenced grain yields better than the organic manures on equal nitrogen basis 1. e. 187.5 kg N/hs and it gave higher production per Kg of N and higher out turn per rupee of expenditure among the manures tried.

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