Effect of Herbicides on Growth, Yield and Economics of Urdbean (Vigna mungo L.)
Ravi Prakash Singh
Regional Research Sub-Center NARP, Saini, Kaushambi, (UP), India.
S. K. Verma *
Department of Agronomy, Institute of Agricultural Sciences, BHU, Varanasi-221005, India.
Puneet Kumar Singh
School of Biotechnology, Kalinga Institute of Industrial Technology (Deemed to be University), Bhubaneswar-751024 (Orrisa), India.
Kairovin Lakra
Department of Agronomy, The Chandra Shekhar Azad University of Agriculture & Technology, Kanpur-228002 (UP), India.
S. B. Singh
Department of Agronomy, BUAT, Banda- 210001, India.
Sriprakash Maurya
Department of Agronomy, R.B.S. College Bichpuri, Dr. BR Ambedkar University Agra UP-282004, India.
*Author to whom correspondence should be addressed.
Abstract
A field experiment with the objectives to understand the effect of herbicides on weed infestation and blackgram yield involving herbicidal treatments (weedy check, hand weeding at 20 and 40 days after sowing, Pendimethalin 1000 g/ha (Pre-em), Imazethapyr 100 g/ha at 20 DAS, Fomesafen 250 g/ha at 20 DAS, Propaquizafop 100 g/ha at 20 DAS, Pendimethalin 1000 g/ha (Pre-em) fb Imazethapyr 100 g/ha at 20 DAS, Fomesafen 210 g/ha + propaquizafop 65 g/ha at 20 DAS was undertaken in RBD with three replications at Regional Research Sub-Center NARP, Saini, CSAUAT, Kanpur during kharif season 2021. Results revealed that sequential application of Pendimethalin 1000 g/ha (Pre-em) fb Imazethapyr 100 g/ha at 20 DAS recorded lower weed density, weed dry weight, weed index and the maximum WCE, crop yield as well as net returns and B-C ratio and was at par with Fomesafen 210 g/ha + propaquizafop 65 g/ha at 20 DAS over rest of the herbicidal treatments. Therefore, it is suggested that the sequential application of herbicides may be used for effective weed management and optimal yield of blackgram.
Keywords: Blackgram, economics, herbicides, weeds, WCE, yield, Vigna mungo