INTEGRATED EFFECT OF SEEDING RATES AND WEED MANAGEMENT REGIMES ON WEED DYNAMICS, CROP PERFORMANCE AND PRODUCTION POTENTIAL OF URDBEAN (Vigna mungo L. Hepper) IN ALLUVIAL PLAIN ZONE OF INDIA

AJAY YADAV¹, ASHISH DWIVEDI²*, RAGHUVIR SINGH³, ADESH SINGH⁴, ROOP KISHORE⁵, RAHUL CHAUDHARY^6
1Department of Agronomy, Sardar Vallabhbhai Patel University of Agriculture and Technology, Meerut, U.P., 250110, India
²Department of Agronomy, Sardar Vallabhbhai Patel University of Agriculture and Technology, Meerut, U.P., 250110, India
³Department of Agronomy, Sardar Vallabhbhai Patel University of Agriculture and Technology, Meerut, U.P., 250110, India
⁴Department of Agronomy, Sardar Vallabhbhai Patel University of Agriculture and Technology, Meerut, U.P., 250110, India
⁵Department of Agronomy, Doon (P.G.) College of Agric. Science & Technology, HNB Garhwal University, Deharadun - 248 001, Uttrakhand, India
⁶Department of Agronomy, Sardar Vallabhbhai Patel University of Agriculture and Technology, Meerut, U.P., 250110, India
* Corresponding Author : ashishdwivedi842@gmail.com

Received : 30-07-2015     Accepted : 21-10-2015     Published : 14-12-2015
Volume : 7     Issue : 13       Pages : 809 - 816
Int J Agr Sci 7.13 (2015):809-816

Keywords : Seed Rates, Weed Management Regimes, Weed Dynamics, Crop Performance, Production Potential and Urdbean
Academic Editor : Dr A. L. Narayanan, Prof Dr. K. Vaiyapuri, Dr Rita Leogrande, Roberto Lai
Conflict of Interest : None declared
Acknowledgements/Funding : None declared
Author Contribution : None declared

Weeds cause stern concern on yield diminution in legumes worldwide. Losses caused by weeds vary from one country to other country, depending on the being there of leading weed flora and control methods adopted by farmers, consequently a field experiment was conducted in urdbean during Kharif season of 2013 in subtropical zone to investigate integrated effect of seeding rates and weed management regimes on weed dynamics, crop performance and production potential in Alluvial plain zone of India. The results disclosed that 15 kg seed rate ha-1 measured highest growth attributes at harvest viz., dry weight, number of branches, and 1000 grain weight, while tallest plant at harvest was measured in the treatments where 25 kg ha-1 seed rate was applied, besides suppressed the density and their dry weight of Echinochloacolona, Cyperusrotundus, Trianthemamonogyna and other weeds than the other treatments. Moreover, 15 kg seed rate ha-1 produced significantly higher grain yield (1329 kg ha-1). Furthermore, highest N, P and K content of urdbean in grain and straw and weeds were also observed in 15 kg seed rate ha-1 over 20 and 25 kg seed rate ha-1. Likewise, in weed management practices, both mechanical and chemical method of weed management was found superior over weedy check to achieve more above parameters. Among the herbicidal treatment Pendimethalin @ 1.0 kg a.iha-1 PE + one hand weeding was shown it ssuperior in respect to above values of performance and weeds as compared to their counterparts. Thus 15 kg seed rate ha-1 combination with Pendimethalin @ 1.0 kg a.i ha-1 as Pre-emergence + one hand weeding at 40 DAS may be suggested for effectively control of weeds in urdbean and also for obtaining maximum economical grain yield, net return, and benefit: cost ratio of urdbean crop.