RESPONSE OF MUNGBEAN TO DIFFERENT WEED CONTROL METHODS

Abstract

A field experiment was conducted at the Agronomy field of Sher-e-Bangla Agricultural University, Sher-e-Bangla Nagar, Dhaka during the period from March 2014 to May 2014 to study efficacy of different weed control methods on growth and yield of BARI mungbean 6. There were eight treatments viz. T 1 = weedy check (control), T 2 = two hand weeding at 15 and 25 DAS, T = Quizalofop-p-ethyl 5 EC @ 600 ml /ha at 15 and 25 DAS, T = Quizalofop-pethyl 5 EC @ 650 ml /ha at 15 and 25

DAS, T 5 4 = Quizalofop-p-ethyl 5 EC @ 700 ml /ha at 15 and 25 DAS, T = Quizalofop-p-ethyl 5 EC @ 600 ml /ha at 15 DAS and one hand weeding at 25 DAS, T 6 = Quizalofop-p-ethyl 5 EC @ 650 ml /ha 15 DAS and one hand weeding at 25 DAS, T 7 = Quizalofop-p-ethyl 5 EC @ 700 ml /ha at 15 DAS and one hand weeding at 25 DAS. The highest weed population was recorded at 25 DAS (526) and 35 DAS (878) with control treatment. The tallest plant at harvest (35.98 cm), maximum weeds control efficiency (WCE) at 25 DAS (87.94 %), 35 DAS (93.91 %); number of pod plant -1 8 (80.33), longest pod (9.52 cm ), highest yield (1.53 t/ha) were obtained from (T ) hand weeding at 15 and 25 DAS. So, two hand weeding at 15 and 25 DAS is the best treatment followed by Quizalofop-p-ethyl 5 EC @ 650 ml /ha 15 DAS + hand weeding at 25 DAS.

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