Integrated effect of rice straw mulch and sequential herbicide application in kharif maize (Zea mays)
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Authors
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DIYAN MANDAL
Indian Agricultural Research Institute, New Delhi, india
https://orcid.org/0009-0003-7802-5443
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P K GHOSH
ICAR-National Institute of Biotic Stress Management, Raipur, Chhattisgarh 493 225, India
Keywords:
Straw mulch, Topramezone, Tembotrione, Weed control efficiencyAbstract
A field experiment was conducted at ICAR-National Institute of Biotic Stress Management, Raipur, Chhattisgarh during kharif 2022–23 to evaluate the effect of rice straw mulch and chemical weed management on weed dynamics, productivity and profitability of maize through a split-plot design with three replications. A significant reduction in total weed density and dry matter was observed with the application of 8 t/ha straw mulch and atrazine PE + tembotrione PoE, which also recorded higher grain yield and net returns/₹ invested without any adverse effect on soil microbial activity. Integration of 8 t/ha straw mulch with atrazine PE + tembotrione PoE recorded better weed control, higher yield and economic return in kharif maize under sub-humid conditions.
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