International Journal of Pure & Applied Bioscience (IJPAB)
Year : 2018, Volume : 6, Issue : 1
First page : (1234) Last page : (1237)
Article doi: http://dx.doi.org/10.18782/2320-7051.6335
Optimal Sizing of OFR for Various Land Holdings
Mithlesh Kumar*, Ashish Kumar Kerketta, Mamta and Dameshwar
*M. Tech. (Land and Water Resources Engineering), Agricultural and Food Engineering Department, Indian Institute of Technology, Kharagpur 721 302, West Bengal, India
Indira Gandhi Krishi Vishwavidyalaya, Krishak Nagar, Raipur, 492012, Chhattisgarh, India
*Corresponding Author E-mail: mithleshgayakwad91@gmail.com
Received: 5.01.2018 | Revised: 13.02.2018 | Accepted: 18.02.2018
ABSTRACT
The software was tested for rice cropping under different irrigation management strategies under various field sizes. This software provides flexibility in determining the OFR size in rain-fed farming system at various combinations of cropped area, cropping sequence, and soil type and soil moisture conditions. With the increase in soil moisture depletion level and total field area, the OFR area (%) follows a decreasing trend under same cropping pattern. The optimal OFR size for rice system was found to decrease from 6.6 to 5% of cropped field area during entire growing season. In the field area 1900 m2 and 2000 m2 the optimal size of OFR during entire season and during critical growth stages at 10% depletion the OFR area (%) are same but volume of water present in the OFR was more during the critical growth stages. Larger OFR sizes are required to provide supplemental irrigation during entire growing period of the crop. This software provides optimum size of OFR for that particular year.
Key words: Irrigation management strategies, On-farm reservoir, Rain-fed farming, Soil moisture depletion, Critical growth stages, Supplemental irrigation.
Full Text : PDF; Journal doi : http://dx.doi.org/10.18782
Cite this article: Kumar, M., Kerketta, A.K., Mamta and Dameshwar, Optimal Sizing of OFR for Various Land Holdings, Int. J. Pure App. Biosci. 6(1): 1234-1237 (2018). doi: http://dx.doi.org/10.18782/2320-7051.6335
