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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
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.2019.8(1): 1-15
DOI: https://doi.org/10.20546/ijcmas.2019.801.001


Physiological Growth Parameters of Rabi Rice (Oryza sativa L.) under Alternate Wetting and Drying Irrigation with Varied Nitrogen Levels
K. Sridhar1*, A. Srinivas2, K. Avil Kumar3, T. Ramprakash4 and P. Raghuveer Rao5
1District Agricultural Advisory Transfer of Technology Centre, Mahabubnagar, PJTSAU, India
2Agricultural Research Institute Main Farm, PJTSAU Rajendranagar, Hyderabad
3Water Technology Centre,
4AICRP on Weed Management, PJTSAU, Rajendranagar, Hyderabad, India
5Indian Institute of Rice Research, Rajendranagar, Hyderabad, India
*Corresponding author
Abstract:

A field experiment was conducted during rabi 2016-17 and 2017-18 at Agricultural Research Institute Main Farm, Rajendranagar, Hyderabad, on a clay loam soil to study the effect of alternate wetting and drying irrigation on rabi rice under varied nitrogen levels. The experiment consisted of three irrigation regimes (recommended submergence of 2 to 5 cm water level as per crop growth stage, AWD irrigation of 5 cm when water level drops to 3cm in water tube, AWD irrigation of 5cm when water level drops to 5 cm in water tube) as main plot treatments and three nitrogen levels (120, 160 and 200 kg N ha-1) as sub plot treatments laid out in split plot design with three replications. Significant improvement in the physiological growth parameters was observed with recommended submergence of 2 to 5 cm water level as per crop growth stage which was on par with AWD irrigation of 5 cm when water level drops to 3cm in water tube. Among nitrogen levels, application of 200 kg N ha-1 resulted in higher physiological growth parameters of Rabi Rice which was on par with application of 160 kg N ha-1.


Keywords: Growth parameters, Rabi rice, Irrigation, Nitrogen levels
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How to cite this article:

Sridhar, K., A. Srinivas, K. Avil Kumar, T. Ramprakash and Raghuveer Rao, P. 2019. Physiological Growth Parameters of Rabi Rice (Oryza sativa L.) under Alternate Wetting and Drying Irrigation with Varied Nitrogen Levels.Int.J.Curr.Microbiol.App.Sci. 8(1): 1-15. doi: https://doi.org/10.20546/ijcmas.2019.801.001