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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2019)
[Effective from January 1, 2019]
For more details click here

ICV 2017: 100.00
Index Copernicus ICI Journals Master List 2017 - IJCMAS--ICV 2017: 100.00
For more details click here

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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
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Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2017: 100.00
NAAS RATING 2018: 5.38

Int.J.Curr.Microbiol.App.Sci.2017.6(12): 493-499
DOI: https://doi.org/10.20546/ijcmas.2017.612.060


Effect of Weed Management Practices on Weed Density, Weed Control Efficiency, Weed Index and Yield of Potato (Solanum tuberosum L.)
Ravikumar Hoogar1*, R. Jayaramaiah2, G. Pramod2, S.T. Bhairappanavar2 and B. Tambat2
1Department of Agronomy, College of Agriculture, UAS, GKVK, Bangalore-65, India
2Department of Agronomy, College of Agriculture Hassan, UAS, GKVK, Bangalore-65, India
*Corresponding author
Abstract:

A field experiment was conducted during kharif 2016 at College of Agriculture, Hassan, University of Agricultural Sciences, Bengaluru to evaluate different pre and post emergent herbicides on growth and yield of potato (Solanum tuberosum L.) the soil of experimental site is red sandy loam in texture, neutral in reaction and medium in available nitrogen, phosphorus and potassium. The experiment was laid out in a RCBD with seven treatments replicated thrice. The investigation revealed that, among different herbicides, lower sedge density and dry weight was recorded by Metribuzin 500 g a.i. ha-1 as pre-emergent (20.5 m-2 and 9.0 g m-2, respectively). Whereas application of Fenoxaprop–p-ethyl 54 gm a.i. ha-1 as early post emergent at 20 DAP recorded significantly lower grasses, broad leaved and total weed density (15.3, 24.7 and 62.0 m-2, respectively), weed dry weight (7.9, 10.3 and 28.1 g m-2, respectively), lower weed index (5.9 %), higher weed control efficiency (73.3 %). This treatment registered significantly higher tuber yield (19.77 t ha-1) which was on par with Quizalofop–p-ethyl (18.93 t ha-1) and significantly lower tuber yield was recorded in weedy check (14.00 t ha-1).


Keywords: Potato, Weed, Fenoxaprop–p-ethyl, Weed control efficiency, Weed index, Yield.
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How to cite this article:

Ravikumar Hoogar, R. Jayaramaiah, G. Pramod, S.T. Bhairappanavar and Tambat, B. 2017. Effect of Weed Management Practices on Weed Density, Weed Control Efficiency, Weed Index and Yield of Potato (Solanum tuberosum L.).Int.J.Curr.Microbiol.App.Sci. 6(12): 493-499. doi: https://doi.org/10.20546/ijcmas.2017.612.060