Assessment of Premix Broad Spectrum Herbicides for Weed Management in Wheat (Triticum aestivum L.)

The study was conducted at the farmer's field in village Fatehgarh adopted by KVK Mandsaur (Madhya Pradesh), during Rabi 2015–16, 2016–17 and 2017–18 to assess the effect of weed management treatments on weed infestation and wheat yield. The experiment consisted of three treatments namely T1: farmers’ practice (hand weeding at 25 and 45 DAS), T2: sulfosulfuron 75% + metsulfuron methyl 5% @ 32 g a.i./ha at 25 DAS as post emergence and T3: clodinafop 15% + metsulfuron methyl 1% WP @ 64 g a.i./ha at 25 DAS as post emergence. Application of clodinafop 15% + metsulfuron methyl 1% WP @ 64 g a.i./ha resulted in significant reduction in the weed count and weed dry matter as compared to rest of the treatments. Clodinafop 15% + metsulfuron methyl 1% WP @ 64 g a.i./ha registered 27.87 percent higher grain yield as compare to farmers’ practice. Further, application of clodinafop 15% + metsulfuron methyl 1% WP @ 64 g a.i./ha as post emergence registered significantly higher net return and B: C as compared to all other treatments and in addition to increased grain yield of improved technology. The technological gap, extension gap and technology index existed which were 7.47 q/ha, 10.36 q/ha and 13.58%, respectively.