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ECONOMICS OF INTEGRATED WEED MANAGEMENT IN SOYBEAN (GLYCINE MAX L.)


Sylvestre Habimana

Department of Crop Science, University of Rwanda, College of Agriculture, Animal Sciences and Veterinary Medicine, Rwanda

Antoine Karangwa

Department of Rural Development and Agribusiness, University of Rwanda, College of Agriculture, Animal Sciences and Veterinary Medicine, Rwanda

Peter M. Mbabazi

Department of Rural Development and Agribusiness, University of Rwanda, College of Agriculture, Animal Sciences and Veterinary Medicine, Rwanda

Athanase Nduwumuremyi

Rwanda Agricultural Board, RAB-Rwanda


ABSTRACT

A field experiment was conducted in zonal agricultural research station, university of agricultural sciences, (UAS) GKVK Bengaluru during Kharif, 2012 to study the economics of integrated weed management in soybean. The experiment was laid out in Randomized Complete Block Design (RCBD) with ten treatments, replicated thrice. At harvest, intercultivation fb hand weeding at 20 and 40 DAS was found effective for controlling grasses, broad leaved weeds and sedge weeds, registered higher grain (2570 kg ha-1) and haulm yield (2964 kg ha-1). However, intercultivation fb.hand weeding at 20 and 40 DAS remained at par with pre-emergence application of metribuzin 70 WP fb. imazethapyr as well as metribuzin 70 WP fb.intercultivation at 30 DAS as compared to unweeded check. Nevertheless, benefit cost ratio was recorded higher (3.55) under the metribuzin 70 WP fb. imazethapyr.


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