Integrated Approaches Proven Better Weed Control, Productivity and Quality in Blackgram (Vigna mungo L.)

Abstract

A field experiment was conducted during kharif 2023 to study the efficacy of pre and early post-emergence herbicides for the management of weeds in blackgram. The experiment was laid out in a randomized block design with 12 treatments replicated thrice. The weed free treatment recorded significantly higher seed and stover yield (1077 and 2657 kg/ha, respectively). After weed free, significantly higher seed and stover yields (960 and 2258 kg/ha, respectively) were observed in interculturing followed by hand weedings at 20 and 40 DAS and was found at par with post-emergence application of imazethapyr + imazamox @ 50 (25 + 25) g/ha fbinterculturing at 40 DAS (932 and 2224 kg/ha, respectively) and imazethapyr + imazamox @ 60 (30 + 30) g/ha fb interculturing at 40 DAS (916 and 2169 kg/ha, respectively) due to better plant height, number of branches per plant due to better weed control in these treatments as evidenced by significantly lower weed dry weight of sedges, grasses, broad leaf weeds and total weeds at  15, 40 DAS and at harvest as compared to unweeded check. Whereas, significantly higher protein yield was observed in weed free (242.11 kg/ha) which was followed by interculturing followed by hand weedings at 20 and 40 DAS (214.46 kg/ha) and other treatments.