Effect of Different Herbicides on Weed Dynamics in Wheat (Triticum aestivum L.)

Abstract

A field experiment was conducted at Research farm, Vivekananda Global University, Jaipur during Rabi, 2023 on loamy sand soil. The experiment comprises 11 treatments of weed management practices in wheat (Weedy check, Weed free, Hand weeding at 30-35 DAS, 2,4-D ester @ 0.75 kg/ha at 30-35 DAS,  Sulfosulfuron @ 25 g a.i. at 30-35 DAS, Carfentrazone ethyl @20 g/ha at 30-35 DAS, Metsulfuron methyl @ 4 g/ha at 30-35 DAS, Pinoxaden @60 g a.i./ha 25-30 DAS,  Piroxofop- propargyl 15% WP @60g a.i./ha 30-35 DAS, Sulfosulfuron 75% + Metsulfuron 5% WG @ 32g  a.i./ha at 30-35 DAS and Clodinafop-propargyl 15% + Metsulfuron methyl 1% @ 32 g a.i./ha at 30-35 DAS) thereby experiment was laid out in randomized block design and replicated thrice. Results showed that application of Sulfosulfuron 75% + Metsulfuron 5% WG @ 32g a.i./ha at 30-35 DAS at 30-35 DAS treatment resulted significant reduction in weed density, weed dry matter in comparison to most of the treatments while highest weed control efficiency and lowest weed index was recorded with the same treatment except weed free treatment. Clodinafop-propargyl 15% + Metsulfuron methyl 1% @ 32 g a.i./ha at 30-35 DAS was next superior treatment.