Department of Agronomy, Institute of Agricultural Sciences Banaras Hindu University, Varanasi-221 005 (U. P.), India.
An integrated weed management experiment was conducted consecutively during wet season of 1998, 1999 and 2000 at Agricultural Research Farm. Institute of Agricultural Scicnces, BHU, Varanasi to evolvc suitable weed management technique for direct dry seeded rainfed lowland rice. Pre-emergence application of butachlor+2, 4–0 (1.5+0.5 kg ha−1), thiobencarb+2, 4–0 (1.5HU kg ha−1) and anilofos+2, 4–0 (0.4+0.5 kg ha−1) in combination with one hand wecding (25 DAS) were maximum and equally effectivc in minimizing weed growth during pre-flooding and enhancing coarse rice grain yield as comparcd to these herbicidal combinations of treatments without hand weeding. Weedy check marked a mcan yicld loss of 53.8%, and this loss ranged from 10.1 to 28.8%, under hand weeding (25 and 50 OAS) and herbicidal treatments.
