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International Journal of Pure & Applied Bioscience (IJPAB)
Year : 2018, Volume : 6, Issue : 2
First page : (398) Last page : (408)
Article doi: : http://dx.doi.org/10.18782/2320-7051.6318

Weed Dynamics and Yield of Potato As Influenced By Weed Management Practices

Chaitan Soren1*, Korla Aditya Chowdary1, Gokenapally Sathish2 and Bikas Chandra Patra1
1Department of Agronomy, 2Department of Agricultural Statistics,
Bidhan Chandra KrishiViswavidyalaya, Mohanpur, Nadia, West Bengal, India – 741252
*Corresponding Author E-mail: chaitan_agronomy@rediffmail.com
Received: 8.03.2018  |  Revised: 15.04.2018   |  Accepted: 18.04.2018  


A field experiment was conducted during the rabi season of 2015-16 and 2016-17 at Regional Research Sub-station, Raghunathpur, Bidhan Chandra Krishi Viswavidyalaya, Purulia, West Bengal to evaluate the bio-efficacy of post emergence herbicide application as well as influence on yield of potato. The treatments were arranged in a Randomized Block Design (RBD) with four replications.  Results of this study indicated that hand weeding recorded superiority over remaining treatments; however, it required a lot of man force and time which was uneconomic to the farmer’s point of view. Among the herbicides, Paraquat Dichloride 24% SL @ 2.0 lit ha-1 recorded the lowest weed density and dry weight. Hand weeding recorded significantly higher tuber yield (24.13 t ha-1) followed by Paraquat Dichloride 24% SL @ 2.0 lit ha-1 (21.67 t ha-1) which was at par with Paraquat Dichloride 24% SL @ 1.5 lit ha-1 (17.45 t ha-1). Lowest tuber yield (14.54 t ha-1) was recorded in unweeded control plot. It revealed that total bacteria population in Paraquat Dichloride 24% SL applied plots did not show any significant influence on the population of total bacteria in Rhizosphere soil as compared to the initial population. The data on the population of fungi in Rhizosphere region at harvest, showed slight increment than the initial one and the similar trend was also found in the case of Actinomycetes population. Paraquat Dichloride 24% SL @ 2.0 litre ha-1 was proved to be superior in terms of weed control, increased crop yield and microbial population in the rhizosphere and it can be recommended as a post-emergence herbicide in potato for effective and eco-friendly weed control to obtain higher tuber yield.

Key words: Herbicide, Potato, Weed control efficiency, Microbial population, Yield

Full Text : PDF; Journal doi : http://dx.doi.org/10.18782

Cite this article: Soren, C., Chowdary, K.A., Sathish, G. and Patra, B.C., Weed Dynamics and Yield of Potato As Influenced By Weed Management Practices, Int. J. Pure App. Biosci.6(2): 398-408 (2018). doi: http://dx.doi.org/10.18782/2320-7051.6318

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