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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 2018: 95.39
Index Copernicus ICI Journals Master List 2017 - IJCMAS--ICV 2018: 95.39
For more details click here

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Original Research Articles

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 2017: 100.00
NAAS RATING 2018: 5.38

Int.J.Curr.Microbiol.App.Sci.2018.7(1): 2566-2574
DOI: https://doi.org/10.20546/ijcmas.2018.701.309


Influence of Nitrogen and Weed Management Practices on Growth and Yield of Direct Seeded Rice (Oryza sativa L.)
Bonu Rama Devi* and Yashwant Singh
Department of Agronomy, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi-221 005, India
*Corresponding author
Abstract:

A field experiment was conducted during rainy (kharif) season of 2015 and 2016 to study the effect of nitrogen and weed management in direct seeded rice (Oryza sativa L.) Nitrogen management significantly reduced the population of grasses, sedges and broad leaved weeds and increased weed control efficiency and increased growth attributes and yield of crop. The results indicated that the minimum population of grasses, sedges and broad leaved weeds, weed dry weight and maximum weed control efficiency and maximum crop growth attributes and yield was recorded with the application of ¼ N basal + ¼ N at active tillering stage + ¼ N at panicle initiation stage + ¼ N at heading stage. Application of ½ N basal + ¼ N at active tillering stage + ¼ N at panicle initiation stage recorded higher population of grasses, sedges and broad leaved weeds and dry weight during both the years. The various weed management treatments significantly decreased the population and dry weight of weed and increased the weed control efficiency, crop growth characters and yield when compared with the weedy check. Two hand weedings at 20 and 40 DAS and bispyribac at 25 g a.i. ha-1 + azimsulfuron at 17.5 g a.i. ha-1 + NIS (0.25 %) at 15-20 DAS recorded minimum weed population and dry weight of weed and increased the weed control efficiency, crop growth characters and yield of the crop when compared to other treatments.


Keywords: Direct seeded rice, Nitrogen, Weed management, Yield, Weed
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How to cite this article:

Bonu Rama Devi and Yashwant Singh. 2018. Influence of Nitrogen and Weed Management Practices on Growth and Yield of Direct Seeded Rice (Oryza sativa L.).Int.J.Curr.Microbiol.App.Sci. 7(1): 2566-2574. doi: https://doi.org/10.20546/ijcmas.2018.701.309