Effect of Chemical and Mechanical Weed Management on Potato (Solanum tuberosum L.) Production and Relative Composition of Weed under Varanasi Region, Uttar Pradesh

A two-year field experiment was conducted on potato crop to evaluate the bio-efficacy of herbicides, suitable doses and their feasibility with mechanical weed control method in terms plant height, number tubers relative composition weeds. The arranged a randomized complete block design (RCBD) three replications at vegetable research farm Department Horticulture, Institute Agricultural Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh, India, during winter season 2017-18 2018-19. Randomly selected five plants were used as sample for recording height average per each plot. Plant measured 30, 45, 60 DAS harvest then averaged expressed centimetres. However, obtained by counting from harvest. For calculation weeds, species 1.0 m2 randomly one place plot 15, 45 cent. Amongst herbicidal management treatments, Paraquat dichloride 24% SL @ 2.0 L/ha had significantly taller also produces highest plant. With respect sedges (Cyperus rotundus L.) contributed most total followed grasses (Cynodon dactylon broad-leaves weeds (Chenopodium album L., Parthenium hysterophorus Sonchus oleraceus Anagalis arvensis Oxalis spp., Spergula both years. It is concluded that application more efficiently thereby it helps vigorous growth thus ultimately increases