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Water Management for Rice Based Cropping System in Keonjhar (Odisha) Ray M.1,*, Patro H.2,** 1Gramin Krishi Mausam Sewa 2Regional Research and Technology Transfer Station (OUAT), Keonjhar, Odisha-758002 *email: monikarayouat@gmail.com
** hrusikesh.patro1@gmail.com
Online published on 2 January, 2017. Abstract Knowledge about onset of monsoon, amount of rainfall and its distribution are prerequisite to adopt any cropping system model at a particular region especially for rainfed crops. Therefore, seasonal analysis of rainfall data was done in this study to meet the water demand of different cropping systems. The probability analysis of the rainfall data revealed that the onset of monsoon is on 25th week which is extended between 18th to 24th June in meteorological standard week. The probability distribution of seasonal rainfall indicated that the occurrence of 80% rainfall in kharif, zaid and rabi season are 448.3, 49.9 and 34.9 mm respectively, whereas 643 mm is the annual rainfall. It was forecast that the occurrence of rainy days (>2.5 mm rainfall per day) is 54 days per annum. The dimension of a pond for 421 cu m water harvesting is 30 m in length and 15 m of width for surface with 15 m of length and 7.5 m of width at bottom and 1.5 m depth. Top Keywords Water balance, Rainfall analysis, Cropping system, Rice. Top | |
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