Abstract
Rabi maize is affected by three types of weed species mainly broad-leaf weeds in eastern pockets of Uttar Pradesh and causes grain and stover yields loss in higher amount. Therefore present study was carried out to find the most effective dose of 2, 4-D Sodium salt 80% WP on killing of braod-leaf weeds. A field investigation was conducted during Rabi season of (2021) at Varanasi, Uttar Pradesh, to study the efficacy of 2, 4-D Sodium salt 80% WP on weeds, productivity and economics of rabi maize (Zea mays L.). 2, 4-D Sodium salt 80% WP 1250 g/ha at 25 DAS recorded lesser weed density and weed dry weight of Physalis minima, Chenopodium album, Parthenium hysterophorus and Cichorium intybus at 45 DAS as compared to other doses of 2, 4-D. Number of cobs, number of grains, number of grains/ row, seed index in comparison were superior in 2, 4-D Sodium salt 80% WP 1250 g/ha at 25 DAS with improved grain and stover yields and higher monetary returns during the study.
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