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Rainfall Variability: A Tool for Crop Planning of Udaipur Region of India


Among the climatic elements, rainfall is the first index, which determines the cropping pattern of an area and the type of crop to be cultivated. Therefore, the present study deals the rainfall characteristics of the Udaipur District of Rajasthan, India. The daily rainfall data for last 39 years (1973–2011) were analyzed to study its variability and probability. The mean annual rainfall of the area was 630.20 mm and it was highest (1,145 mm) in the year 1973 followed by 978 mm in 1983. The contribution from winter, summer/pre-monsoon, monsoon and post-monsoon periods was 1.08, 3.17, 89.89 and 5.86 %, respectively. Rains during June, July, August and September are more helpful to indicate the suitability crop growing period for profitable crop production. Each standard meteorology week from 26th to 38th receive a rainfall of above 20 mm, indicating the crop growing period from June 4th week to September 3rd week. The study indicated that the mean annual rainfall was found 630.20 mm and monthly mean rainfall was observed to be 14.20, 74.29, 178.52, 212.59, 100.98, 20.51 mm for May, June, July, August, September and October, respectively.

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Correspondence to D. K. Jajoria.

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Jajoria, D.K., Sharma, S.K., Narolia, G.P. et al. Rainfall Variability: A Tool for Crop Planning of Udaipur Region of India. Natl. Acad. Sci. Lett. 38, 95–98 (2015).

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  • Crop planning
  • Probability pattern
  • Rainfall variability