Efficacy of carfentrazone ethyl for managing broad-leaved weeds in wheat
Keywords:
Broad leaf weeds, carfentrazone-ethyl, 2,4-D Na salt, dry weight, total weed count, wheatAbstract
A field experiment was conducted during rabi 2021-22 at the Experimental Farm of Department of Agronomy, CSK Himachal Pradesh Krishi Vishvavidyalaya, Palampur with nine weed control treatments viz., carfentrazone-ethyl at 16, 25, 31.25, 34 and 50 g/ha, carfentrazone-ethyl (market sample) 25 g/ha, 2,4-D Na salt 1.0 kg/ha, hand weeding (weed free), and weedy check following Randomized Block Design with three replications. Grassy weeds were controlled by the uniform spray of clodinafop propargyl 60 g/ha. Carfentrazone-ethyl 25 g/ha, being statistically at par with carfentrazone-ethyl 34 g/ha, and carfentrazone-ethyl (market sample) 25 g/ha resulted in significantly lower population of Vicia sativa, Anagallius arvensis, Lathyrus aphaca, Chenopodium album, Coronopus didymus and Medicago denticulata and consequently significantly lower total weed dry weight over other treatments. The significantly highest grain and straw yield of wheat were recorded with the application of carfentrazone-ethyl 25 g/ha which was closely followed by carfentrazone-ethyl 34g/ha and 31.25 g/ha.
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