70(1) 2025 Effect of crop geometry and ALS & 4-HPPD inhibitor herbicides on weeds, growth and yield of maize (Zea mays L.)
DOI:
https://doi.org/10.59797/ija.v70i1.5761Keywords:
Crop geometry, Tembotrione, Topramezone, Weed control efficiency, Weed indexAbstract
A field experiment was conducted at the Agricultural Research Farm, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi during rainy season of 2022 to study the effect of plant crop geometry and herbicide treatment on weeds, growth and yield of rainy maize. The experiment was conducted in a Randomized Complete Block Design design with two factors, crop geometry and weed management. In crop geometry, 60 cm × 15 cm was found lower weed density and dry weight as compared to crop geometry 60 cm × 20 cm. However, atrazine 1.0 kg/ha fb topramezone 25.2 g/ha at 25 DAS was recorded lower weed density and dry weight in comparison to atrazine 1.0 kg/ha fb halosulfuron 67.5 g/ha at 25 DAS except Cyperus esculentus. Significantly higher grain yield (0.51 t/ha) was registered in atrazine 1.0 kg/ha fb topramezone 25.2 g/ha at 25 DAS as compared to atrazine 1.0 kg/ha fb halosulfuron 67.5 g/ha at 25 DAS (0.47 t/ha).
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