IMPACT OF INTEGRATED WEED MANAGEMENT PRACTICES ON WEED DYNAMICS, GROWTH AND YIELD OF PEARLMILLET [Pennisetum glaucum L. Br. Emend. Stuntz.]
Journal Title: International Journal of Agriculture Sciences - Year 2017, Vol 9, Issue 3
Abstract
In this research, the effects of integrated weed management practices on weed dynamics, growth and yield of pearl millet [Pennisetum glaucum (L.) Br. Emend. Stuntz.] were studied at different growth stages. Weed density and dry weight were recorded thrice at 25 and 50 DAS and at harvest. The lowest density and dry weight of weeds were observed with hand weeding twice at 20 and 40 DAS, which was at par with pre-emergence application of atrazine @ 750 g a.i./ha fb hand weeding at 30 DAS. The observations on growth and yield attributes by plants were recorded at harvest. Hand weeding twice at 20 and 40 DAS and pre-emergence application of atrazine @ 750 g a.i./ha fb hand weeding at 30 DAS recorded 86.5 and 83.8% higher grain yield over weedy check. Pre-emergence application of oxyfluorfen @ 100 g a.i./ha resulted in poor weed control and grain yield and was reported to be phytotoxic to the crop. Integration of post-emergence herbicides viz., ethoxysulfuron @ 37.5 g a.i./ha or almix @ 8 g a.i./ha at 25 DAS with any of the pre-emergence herbicides viz., atrazine and oxyfluorfen did not have any significant effect on weed control and grain yield of pearl millet. Integration of pre-emergence application of atrazine with hand weeding effectively controlled the weed population and increased the grain yield of pearl millet, significantly over other integrated weed management practices
Authors and Affiliations
P. S. MISHRA
Keywords
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