International Journal of Pure & Applied Bioscience (IJPAB)
Year : 2017, Volume : 5, Issue : 2
First page : (675) Last page : (681)
Article doi: http://dx.doi.org/10.18782/2320-7051.2615
Influence of Pre - and Post - Emergence Herbicides on Weeds and Yield of Dwarf Field Pea
Shalini1*, Brijbhooshan2, Vijay Kumar Didal3 and V. K. Singh4
1&4 Department of Agronomy, G.B. Pant University of Agriculture and Technology, Pantnagar-263 145, India
2&3 Department of Agronomy, Professor Jayashankar Telangana State Agricultural University,
Hyderabad-500030, India
*Corresponding Author E-mail: shalini30966@gmail.com
Received: 20.02.2017 | Revised: 4.03.2017 | Accepted: 5.03.2017
ABSTRACT
An experiment was conducted to evaluate the efficacy of different pre and post emergence herbicides on weed dynamics, weed density and yield of field pea during rabi season of 2010-2011 and 2011-12 at Pantnagar in tarai soil of Uttarakhand. Results revealed that Phalaris minor, Cyprerus rotundus and Argemone Mexicana were the pre-dominant weed species contributing 20.3, 16.1 and 15.8% of total population under weedy check condition respectively. It was observed that uncontrolled weeds caused 27.3 and 39.4% reduction in grain yield of dwarf fieldpea during first and second year, respectively as compared to two hand weedings done at 20 and 40 days after sowing (DAS). The highest weed control efficiency was recorded under two hand weedings followed by pendimethalin 1.0 kg/ha (PE)+ imazethapyr 0.05 kg/ha (POE, 30 DAS) and pendimethalin 1.0 kg/ha (PE)+ quizalofop ethyl 0.05 kg/ha (POE, 30 DAS). Two hand weedings done at 20 and 40 DAS, which remained at par with pendimethalin1.0 kg/ha (PE)+ imazethapyr 0.05 kg/ha (POE,30 DAS) and pendimethalin 1.0 kg/ha (PE)+ quizalofop ethyl 0.05 kg/ha (POE, 30 DAS) caused significant reduction in weed population and produced 27.1, 23.1 and 16.0% more number of pods/plant and yielded 50, 40 and 35.7% higher grain yield, respectively over weedy check.
Key words: Weed dynamics, Phalaris minor, Cyprerus rotundus, Argemone Mexicana, Pre-emergence, Post-emergence
Full Text : PDF; Journal doi : http://dx.doi.org/10.18782
Cite this article: Shalini, Brijbhooshan, Didal, V.K. and Singh, V.K., Influence of Pre - and Post - Emergence Herbicides on Weeds and Yield of Dwarf Field Pea, Int. J. Pure App. Biosci.5(2): 675-681 (2017). doi: http://dx.doi.org/10.18782/2320-7051.2615
