Effect of Chemical to Herb Control on Performance of Sesame (Sesamum indicum) under Irrigated Conditions

Abstract

Weed management greatly influences on weed infestation and yield of sesame under irrigated condition. An experiment was conducted at Bagusala farm, M.S. Swaminathan School of Agriculture, CUTM, Paralakhemundi, Odisha to find out the effectiveness of pre and post emergence herbicides on performance of summer sesame under irrigated conditions. The soil of experimental site was sandy clay loam in texture, slightly acidic in reaction with pH of 6.4. The experiment was laid out in randomize block design with three replications, assigning twelve treatments combinations of chemical application irrigated sesamum cultivation. The yield with hand weeding at 20 and 40 DAS was comparable with Pendimethalin @ 500 g a.i ha-1 3 DAS + Imazethapyr @ 60g a.i ha-1 at 20 DAS, Imazethapyr @ 60g a.i ha-1 at 20 DAS, Oxadiargyl 80wp @ 60g a.i ha-1 3 DAS and Oxadiagyl @ 40 g a.i ha-1 3 DAS + Imazethapyr @ 60 g a.i ha-1 20 DAS and significantly superior over all other treatments. The weed number observed in all chemical weed control treatments was significantly lower than un-weeded control. Application of herbicides was found to be effective in reduction of weed population in summer sesamum under irrigated conditions. The weeds can be effectively controlled through application herbicides in sesame grown under irrigated conditions during summer season.