Effect of integrated weed management on direct seeded rice Oryza sativa L

Abstract

A field experiment was carried out during Kharif season 2016 and 2017 at Bihar Agricultural College farm, Sabour under the Bihar Agricultural University, Sabour, Bhagalpur to assess the effect of integrated weed management on direct seeded rice (Oryza sativa L.). The soil texture of the experimental site was silt loam and was low in available nitrogen (188.61 kg ha-1), and medium in available phosphorus (21.65 kg ha-1) and potassium (194.88 kg ha-1). The experiment was conducted in a randomized block design with fourteen weed management treatments involving various herbicides (Pendimethalin 1000 g a.i. ha-1 (PE), Pendimethalin 500 g a.i ha-1 (PE) fb 1 HW 40 DAS, Almix 4 g ha-1 (PoE), Almix 2 g a.i ha-1 (PoE) fb 1 HW 40 DAS, Ethoxysulfuron 15 g a.i ha-1 (PoE), Ethoxysulfuron 7.5 g a.i ha-1 (PoE) fb 1 HW 40 DAS, Pyrazosulfuran 25 g a.i ha-1 (PE), Pyrazosulfuran 12.5 g a.i ha-1 (PE) fb 1 HW 40 DAS, Bispyribac-Na 30 g a.i ha-1 (PoE) , Bispyribac-Na 15 g a.i ha-1 fb 1 HW 40 DAS (PoE), Azimsulfuron 35 g a.i ha-1 (PoE), Azimsulfuron 17.5 g a.i ha-1 fb 1 HW 40 DAS (PoE), weedy and weed free with three replications. newline