This article Citation:

V. Pratap Singh, Arunima Paliwal, Tej Pratap, S.P. Singh, Ajay Kumar and Radhey Shyam. 2022. Bio-efficacy of nicosulfuron against mixed weed flora in maize and its residual effect on succeeding crops . Indian Journal of Weed Science : 54( 3) 251- 256.







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Volume Issue Publication year Page No Type of article
54 3 2022 251-256 Research article
Bio-efficacy of nicosulfuron against mixed weed flora in maize and its residual effect on succeeding crops

V. Pratap Singh, Arunima Paliwal, Tej Pratap, S.P. Singh, Ajay Kumar and Radhey Shyam

DOI: http://dx.doi.org/10.5958/0974-8164.2022.00046.6

Email: arunima.28@rediffmail.com
Address: College of Agriculture, G.B. Pant University of Agriculture and Technology, Pantnagar U.S. Nagar, Uttarakhand 263145, India

Keywords:

Atrazine, Maize, Nicosulfuron, Tembotrione, Weed management 



Abstract:

A field study was conducted during Spring and rainy (Kharif) season of 2017 at N.E. Borlaug Crop Research Centre of G.B. Pant University of Agriculture and Technology, Pantnagar U.S. Nagar, Uttarakhand, India to evaluate the effective dose of nicosulfuron for weed control in maize while assessing its effect on growth and yield of maize along with its residual effect on succeeding pea and cowpea fodder. Eight treatments were tested which include:  post-emergence application (PoE) of nicosulfuron  at different doses (30, 36, 42 and 50 g/ha), tembotrione 120 g/ha PoE, pre-emergence application (PE) of atrazine 1000 g/ha, hand weeding twice at 20 and 40 days after seeding (DAS) and weedy check. The weed community during both the seasons in the experimental area consisted of, grassy weeds: Phalaris minor, Eleusine indica, Digitaria sanguinalis, Echinochloa colona and Panicum maximum, broad-leaved weeds (BLW): Trianthema monogyna, Chenopodium album, Phyllanthus niruri, Parthenium hysterophorus and Mallugo stricta and a sedge Cyperus rotundus. Nicosulfuron at 50 g/ha resulted in 50-100% weed control, depending on the weed species. Nicosulfuron at 50 and 42 g/ha were equally effective in increasing grain yield of maize when compared with tembotrione and was found superior over atrazine during both the season. No phytotoxic symptoms on maize and no residual effect on succeeding pea and cowpea fodder crop were observed, at any doses of nicosulfuron. Hence, nicosulfuron at 42 g/ha PoE may be safely used for effective weed management and improved yield of maize.





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