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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.2018.7(9): 2764-2776
DOI: https://doi.org/10.20546/ijcmas.2018.709.343


Response of Different Fertility Levels and Pre-Emergence Herbicides on Weed Population and Benefit Cost Ratio of Colocasia (Colocasia esculenta Var. antiquorum)
R.K. Markam, Deo Shankar* and A.K. Thakur
Shaheed Gundadhoor College of Agriculture and Research Station (Indira Gandhi Krishi Vishwavidyalaya) Jagdalpur, Bastar-494 005 (Chhattisgarh), India
*Corresponding author
Abstract:

The field experiment was conducted during the year 2017 under All India Co-ordinated Research Project on Tuber Crops at S.G. College of Agriculture and Research Station, Jagdalpur, IGKV, Raipur (C.G.). The experiment was laid out in split plot design with two factors namely fertility levels and different pre-emergence herbicides with three replications. The result revealed that weed species, weed population and dry weight of weed were recorded significantly maximum under F5 (130% NPK) followed by under F4 (115% NPK), weed control efficiency were not affected by any fertility levels treatment. In case of application of pre-emergence herbicides whereas the weed species, weed density and dry weight of weed were significantly higher in T6 (weedy check) whereas, weed control efficiency was recorded significantly higher in T2 (Pendimethalin @ 1.5 kg a.i. ha-1) at 30 and 60 DAP. However, net returns and benefit cost ratio was recorded significantly maximum under F5 (130% NPK) followed by F4 (115% NPK) and minimum was observed under F1 (70% NPK) in fertility levels. In case of pre-emergence herbicides recorded significantly higher under T2 (Pendimethalin @ 1.5 kg a.i. ha-1) and lowest was observed under T6 (weedy check).


Keywords: Colocasia, Fertility levels and pre-emergence herbicides, Weed flora studies, Weed control and economics
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How to cite this article:

Markam, R.K., Deo Shankar and Thakur, A.K. 2018. Response of Different Fertility Levels and Pre-Emergence Herbicides on Weed Population and Benefit Cost Ratio of Colocasia (Colocasia esculenta Var. antiquorum).Int.J.Curr.Microbiol.App.Sci. 7(9): 2764-2776. doi: https://doi.org/10.20546/ijcmas.2018.709.343