Rice herbicides for cotton + soybean intercropping

A field experiment was conducted at Central Institute for Cotton Research Farm, Nagpur for three years in medium deep clay loam soil. The experiment was laid out in RBD design with three replications consist of three herbicide based weed management packages in intercropping of non Bt cotton + soybean and two sole crops. Non Bt cotton+ soybean intercropping reduced seed cotton yields considerably in a year of very 640 mm higher rainfall over normal caused over growth of soybean. In second year also the seed cotton yields were low due to very high incidence of Helicoverpa armigera caused non recovery of intercropped cotton.