Integrated Weed Management Studies in Rabi Maize

International Journal of Agriculture & Environmental Science

© 2018 by SSRG - IJAES Journal

Volume 5 Issue 3

Year of Publication : 2018

Authors : R. Nagasai Vardhan Naik and A. Velayutham

10.14445/23942568/IJAES-V5I3P109

How to Cite?

R. Nagasai Vardhan Naik and A. Velayutham, " Integrated Weed Management Studies in Rabi Maize," SSRG International Journal of Agriculture & Environmental Science, vol. 5,  no. 3, pp. 45-48, 2018. Crossref, https://doi.org/10.14445/23942568/IJAES-V5I3P109

Abstract:

A field experiment was conducted during Rabi season of 2015-2016 at Agricultural College and Research Institute, Killikulam to study the effect of weed management on weeds and yield of maize. Weed management has positive influence on growth, yield attributes and yield of maize. Alachlor @ 1.5 kg a.i./ ha + HW at 30 DAS proved equally effective in increasing most of the growth parameters, yield attributes, yield and economic advantage. The effect due to different weed management practices on grain yield of maize was found statistically significant. Maximum highest grain yield were recorded under alachlor @ 1.5 kg a.i./ ha + HW at 30 DAS (7115 kg ha-1) and was statistically at par with grain yield obtained by two hand weedings at 15 and 30 DAS (6855 kg ha-1) and mechanical weeding with power weeder twice on 15 and 30 DAS (6714 kg ha-1). Yield advantages due to different weed management over weedy check were mainly attributed due to enhanced yield attributing parameters as a result of low weed population, biomass along with higher weed control efficiency. The highest net returns and highest benefit:cost ratio were obtained under alachlor @ 1.5 kg a.i./ ha + HW at 30 DAS followed by two hand weedings at 15 and 30 DAS.

Keywords:

Economics, Integrated Weed management, Maize, yield

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