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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 (2020)
[Effective from January 1, 2020]
For more details click here

ICV 2018: 95.39
Index Copernicus ICI Journals Master List 2018 - IJCMAS--ICV 2018: 95.39
For more details click here

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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcmas@gmail.com / submit@ijcmas.com
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2020.9(2): 1893-1898
DOI: https://doi.org/10.20546/ijcmas.2020.902.216


Effect of pre and post emergence herbicide for weed management in onion bulb yield in northern dry zone of Karnataka, India
N. Jagadeesha1*, G. B. Srinivasulu2, Venkatesh Hosamani3, B. Ravikumar4 and K. R. Lingamurthiy5
1Division of Agronomy, College of Horticulture
2Division of floriculture and Land Scape Architecture, College of Horticulture
3Division of Entomology, College of Horticulture
4Division of Plant Pathology, College of Horticulture
5Division of Vegetable Science, College of Horticulture, Munirabad, University of  Horticultural Sciences, Bagalkot, Karnataka, India
*Corresponding author
Abstract:

A field experiment was conducted at College of Horticulture, Munirabad, Koppal district of Karnataka which falls under Northern Dry Zone of Karnataka, India for two consecutive kharif seasons 2014 and 2015 to find out most suitable and efficient combination of different pre-plant and post-emergence herbicides to control weeds in onion. Experiment was conducted in randomized block design with 12 treatments and three replications consisting of oxyfluorfen were used as pre emergence while oxyfluorfen and fenoxaprop-p-ethyl were used as post emergence and their different combinations. The pre-plant application of oxyfluorfin 23.5 EC@ 240 g a.i/ha followed by post-emergence application of Fenoxaprop – p- ethyl 9 EC@ 270 a.i./ha mixed with oxyfluorfin 23.5 EC resulted in effective control of various broad-leaf and grassy-weeds and recorded lower in total weed density and dry weight of weeds.The same treatments recorded maximum Neck thickness, diameter of the bulb, weight of bulb and Bulb yield (275.8 qt/ha and 271.9 qt/ha ) respectively during both the year due to higher weed control efficiency (88.6 and 89.9 %) over all the other chemical weed control treatments.


Keywords: Oxyfluorfen, Fenoxaprop-p-ethyl, Onion Bulb yield and weed control efficiency
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How to cite this article:

Jagadeesha, N., G. B. Srinivasulu, Venkatesh Hosamani, B. Ravikumar4 and Lingamurthiy, K. R. 2020. Effect of pre and post emergence herbicide for weed management in onion bulb yield in northern dry zone of Karnataka, IndiaInt.J.Curr.Microbiol.App.Sci. 9(2): 1893-1898. doi: https://doi.org/10.20546/ijcmas.2020.902.216