Performance of New Herbicides on Productivity and Profitability of Aerobic Rice
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Author:K. Ramachandiran, R. Balasubramanian and R. Babu
p-ISSN:0024-9602, e-ISSN:2582-5321, Vol:99, Issue:jul-sep
DOI: https://doi.org/10.29321/MAJ.10.100135
Abstract
Field experiment was conducted at Agricultural College and Research Institute, Madurai during
Rabi 2010-2011 to study the performance of new herbicides on productivity and profitability of
aerobic rice with twelve treatments in randomized block design. In this study, post-emergence
mixture of fenoxaprop + (chlorimuron + metsulfuron) on 30 DAS provided a broad spectrum
of weed control by significantly reducing weed density and dry weight at 60 DAS and resulted
in significantly higher weed control efficiency. Post-emergence mixture of fenoxaprop +
ethoxysulfuron on 30 DAS recorded significantly higher grain yield and straw yield. The
economic evaluation of results indicated that post emergence mixture of fenoxaprop +
ethoxysulfuron on 30 DAS registered higher gross return (Rs. 50915 ha -1 ), net return
(Rs. 28281 ha -1 ) and B:C ratio (2.25).
Key words : Aerobic rice, weed density, dry weight, WCE, yield and economics