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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.2017.6(7): 3948-3955
DOI: https://doi.org/10.20546/ijcmas.2017.607.407


Prediction of Tall Crop Reference Evapotranspiration (ETr) and Trend Analysis for Udaipur Station, India
B.R. Jalgaonkar*, H.K. Mittal, P.M. Ingle, Mahesh Kothari and H.K. Jain
Department of Soil and Water Engineering, CTAE (MPUAT), Udaipur, Rajasthan, India
*Corresponding author
Abstract:

For accurate computation of crop water requirement, precise and globally acceptable method of estimating tall crop reference evapotranspiration i.e. Penman-Monteith was recommended by many authors. The method predicts tall crop reference evapotranspiration based on different climatic parameters. In present study, Penman-Monteith reference evapotranspiration at Udaipur station for period of 1991-2010 was calculated for tall crop reference surface. The analysis showed that daily tall crop reference evapotranspiration was ranged from 5.28 mm/day to 5.96 mm/day with mean of 5.54 mm/day. The annual tall crop reference evapotranspiration was ranged from 1928.18 mm to 2174.19 mm. The influence of climatic parameters found that tall crop reference evapotranspiration was decreased due to increase maximum relative humidity and decreased bright sunshine hours. The decrease in tall crop reference evapotranspiration due to increase in maximum relative humidity by 77.22 %. The linear regression analysis showed that tall crop reference evapotranspiration (ETr) was decreasing during pre monsoon (m = -0.0061), post monsoon (m = -0.0169), rabi (m = -0.0017) and zaid (m = -0.0003) seasons respectively. The conformity of trend was done by Mann-Kendall test and no trend was found significant at 95 % level (z = ± 1.96) for all seasons at Udaipur station.


Keywords: Tall crop reference evapotranspiration, Linear regression analysis, Trend analysis, Udaipur.
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How to cite this article:

B.R. Jalgaonkar, H.K. Mittal, P.M. Ingle, Mahesh Kothari and Jain, H.K. 2017. Prediction of Tall Crop Reference Evapotranspiration (ETr) and Trend Analysis for Udaipur Station.Int.J.Curr.Microbiol.App.Sci. 6(7): 3948-3955. doi: https://doi.org/10.20546/ijcmas.2017.607.407