Effect of different integrated weed management practices on weed dynamics and growth attributes of Mungbean (Vigna radiata L. Wilczek)

Abstract

A field study was conducted in kharif season of 2014 and 2015 on Mungbean to evaluate the effect of different weed management practices upon the growth and yield attributes of Mungbean at Agriculture Research Station, Badnapur. The soil was clayey in texture, moderate in available nitrogen, low in available phosphorus, high in available potassium and moderately alkaline in reaction. The field experiment was laid out in randomized block design with nine treatments which include one pre emergence herbicides Pendamethalin (30%E.C.) @ 0.75 kg a.i. ha -1 , two post emergence herbicides Quizalofop ethyl (5%E.C.) @ 50 g a.i. ha -1 , Imazethapyr (10%S.L.) @ 40 g a.i. ha -1 with solely application and applied with combination of each other, one cultural treatment (HW: 10, 30, 25 DAS) with control. Sowing was date on 11 th July 2014 by dibbling method at 30 x 10 cm spacing. Among the weed free plot (2HW-10 and 30 DAS) (T9) significantly higher grain yield (994.33 kg ha -1 ) over all of the treatment. The second best treatment was (T7) T2 + Hand weeding at 25 DAS (951.67 kg ha -1 ) seed yield ha -1 followed by (T4) T2 + Quizalofop ethyl @ 50g ha -1 POE at 15 DAS recorded (904.33 kg ha -1 ) seed yield ha -1 . Lowest seed yield was recorded by (T8) weedy check treatment (542.33 kg ha -1 ) seed yield.