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Vol. 7, Issue 11 (2018)

Crop planning based on rainfall probability for Bhadrak district of Odisha

Author(s):
D Dugal, AKB Mohapatra, S Pasupalak, BS Rath, A Baliarsingh, A Khuntia, A Nanda and GS Panigrahi
Abstract:
The knowledge and information on the rainfall dynamics and its distribution over the cropping season are very important for selection of crop varieties and choice of cropping pattern. Block wise historical rainfall data of 23 years (1995 to 2017) of Bhadrak District were collected and processed by using Weather cock software which revealed that the total mean annual rainfall of the district is 1431 mm. Bhadrak receives almost 70% of mean annual rainfall during SW monsoon. Monsoon starts effectively from 24 SMW (Standard Meteorological Week) (12 June to 15th June) in Bhadrak district and remain active up to 41 SMW (9th October to 13th October). Therefore, we expected good monsoon shower for about 17 weeks (24th to 41th SMW) in the region. The initial rainfall probability {P (W)} of getting 20 mm rainfall per week was >30% during 22 SMW at Bhadrak district, hence, field preparation should be done during this period. The initial as well as conditional probability of wet week followed by wet week {P (W/W)} of getting 20 mm rainfall was more than 50% in 23rd SMW, this week is more suitable for sowing of crops. During 44th to 46th SMW (29th Oct. – 18th November) probability of getting 10 mm rainfall per week was more than 30 per cent. This period is suitable for land preparation and sowing of rabi crops. As rabi irrigated area of the district is only 20.1% and rainfed cropped area limited to 5.2%, vast area (74.7%) remains fallow after kharif crops. Proper crop planning with suitable water conservation measures are needed to be adopted to enhance the acreage, production and productivity rabi crops of the district.
Pages: 162-167  |  327 Views  9 Downloads
How to cite this article:
D Dugal, AKB Mohapatra, S Pasupalak, BS Rath, A Baliarsingh, A Khuntia, A Nanda, GS Panigrahi. Crop planning based on rainfall probability for Bhadrak district of Odisha. Pharma Innovation 2018;7(11):162-167.
The Pharma Innovation Journal