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Effect of integrated weed management practices on weed dynamics, yield and economics of rabi groundnut(arachis hypogaea) in sandy loam soils of andhrapradesh/

Author:

Geetha Devi, S., Venkateswarulu, B. and Chandrasekar, K.

Subject Area:

Life Sciences

Abstract:

A field experiment was conducted during Rabi season of 2002-03 on sandy loam soils at Bapatla, Andhra Pradesh to study the effects of pre and post-emergence herbicides, alone or integrated with manual/mechanical weeding on weed pressure, productivity and economic returns of Rabi groundnut (Arachis hypogaea). Pendimethalin @ 0.75kg/ha as pre-emergence(PE)+imazethapyr@75 g/ha as post-emergence(PoE) herbicides at 21 days after sowing (DAS) resulted in significantly higher growth attributes, yield attributes, yield and net returns over the unweeded control and was found at par withT1: Hand-weeding at 20 and 40 DAS,T7:Pendimethalin @ 0.75kg a.i./ha(PE)+Intercultivation with wheel-hoeing fallowed by hand weeding and T5:Pendimethalin@0.75kg a.i./ha(PE)+imazethapyr @ 50 g a.i./ha(PoE).

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