EFFECT OF DIFFERENT WEED MANAGEMENT MEASURES ON WEED POPULATION, CROP YIELD AND PRODUCTION ECONOMICS OF COMMON BREAD WHEAT (TRITICUM AESTIVUM L.) GROWN IN NEW ALLUVIAL ZONE OF WEST BENGAL INDIA

A field experiment was carried out to examine the effect of different weed management measures on weed population, crop yield and production economics of common bread wheat during rabi season of 2021-22 (November-March) at D block farm, B.C.K.V., Kalyani, Nadia, West Bengal.The number of treatments was 13, which was replicated four times in a randomized complete block design (RCBD).It was observed that among the treatments, maximum yield parameters, weed control efficiency was recorded in T 1 (weeding at 10 days interval) throughout the growing period of the plant but B:C value for this treatment was lowest due to high labour cost.The highest B:C value was observed in T 10 (Carfentrazone ethyl 40% DF 20 g/ha as PoE application at 25 DAS followed by hoeing at 40 DAS).Among the herbicide applied treatments, the highest weed control efficiency was also observed in T 10 (Carfentrazone ethyl 40% DF 20 g/ha as PoE application at 25 DAS followed by hoeing at 40 DAS) (79.64%) and lowest in T 7 (2,4D Na-Salt 20% WP 500 g/ha as PoE application at 25 DAS) (59.58%) at 45 DAS.So, due the highest B:C value and higher weed control efficiency as well as yield than other herbicide applied treatments, T 10 can be considered as the best weed management measure for common bread wheat grown in new alluvial zone of West Bengal.