Integrated weed management in intercropping of mungbean (Vigna radiata) and cowpea fodder (Vigna unguiculata) with pigeonpea (Cajanus cajanL.) in western U.P. condition

A field experiment was carried out during 1998 and 1999 to study the effect of weed management in pigeonpea (Cajanus cajan L.) grown either in mixed or in a sole situation. The lowest weeds count/m2 and weeds dry weight in pigeonpea + cowpea in comparison to pigeonpea + mung bean intercropping and sole crops of pigeon pea. Both the intercrops reduced the yield of pigeonpea but the pigeonpea yield equivalent was higher in pigeonpea + mungbean and pigeonpea + cowpea fodder cropping system respectively. Among various methods of weed control, Pendimethalin @ 1.0 kg a.i./ha + one hand weeding at 30 DAS resulted in maximum 1000- seed weight, grain yield as well as yield equivalent of pigeonpea followed by Fluchloralin @ 1.0 kg a.i./ha + one hand weeding at 30 DASin comparison to control. The lowest weeds population, weed dry weight and highest weed control efficiency are obtained in Pendimethalin @ 1.0 kg a.i./ha + one hand weeding followed by Fluchloralin @ 1.0 kg a.i./ha + one hand weeding.