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).
India stands sixth among the maize producing countries in the globe with an area, production and productivity of 9.60 m ha, 27.15 m t and 2.83 t /ha, respectively .Maize is grown from below sea level to altitudes higher than 3000 m, and in areas with 250 mm to more than 5000 mm of rainfall per year and with a growing cycle ranging from 3 to 10 months.
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