OPTIMIZATION OF AVAILABLE WATER RESOURCES FOR SUSTAINABLE AGRICULTURE IN ANANTAPUR DISTRICT

N. ASHOKKUMAR¹*, M.V. RAMANA², M. RAGHU BABU³, P. PRASUNA RANI⁴, B. RAVINDRA REDDY^5
1Department of Soil and Water Conservation Engineering, College of Agricultural Engineering, Madakasira,515301, Acharya N. G. Ranga Agricultural University, Lam, 522034, India
²Professor and Head, Department of Agricultural Engineering, S. V. Agricultural College, Tirupati, 517502, Acharya N. G. Ranga Agricultural University, Lam, 522034, India
³Retired Professor, Department of Irrigation and Drainage Engineering, College of Agricultural Engineering, Madakasira, 515301, Acharya N. G. Ranga Agricultural University, Lam, 522034, India
⁴Principal Scientist and Head, Geospatial Technology Center, Acharya N. G. Ranga Agricultural University, Lam, 522034, India
⁵Department of Statistics, S. V. Agricultural College, Tirupati, 517502, Acharya N. G. Ranga Agricultural University, Lam, 522034, India
* Corresponding Author : ashokagengg@gmail.com

Received : 11-10-2022     Accepted : 28-10-2022     Published : 30-10-2022
Volume : 14     Issue : 10       Pages : 11810 - 11814
Int J Agr Sci 14.10 (2022):11810-11814

Keywords : Sustainable agriculture, CWR, Crop water demand, Water resources and Optimization
Conflict of Interest : None declared
Acknowledgements/Funding : Authors are thankful to Department of Soil and Water Conservation Engineering, College of Agricultural Engineering, Madakasira, 515301, Acharya N. G. Ranga Agricultural University, Lam, 522034, India
Author Contribution : All authors equally contributed

Assessment of the irrigation potential based on soil and water resources can only be done by simultaneously assessing the irrigation water requirements, which in turn depend on the cropping pattern and climate. The model CROPWAT 8.0 was used to calculate the effective rainfall which is an important parameter for calculating crop irrigation requirement. LINGO 11 software was used for optimization of available water resources with crop water demands. The current scenarios of irrigation vs cultivated areas based on available water resources, shows highest net benefits i.e., Rs. 22363 crores for the year 2017 followed by Rs. 20610 crores for the year 2014 due to higher available surface and groundwater resources compared to other years 2004, 2009, 2011. For future scenarios, the net benefits for the minimum cultivation area for highest crop water demand crops like. paddy and sunflower reduced by 75, 50 and 25 per cent were observed to be Rs. 23841 crores, 23249 and 22856 crores respectively. The available water from surface and groundwater resources is insufficient, thus crops can be chosen to put the entire region under cultivation based on available water. It was proved that these procedures aid policymakers and water resource planners in future planning and water conservation in order to optimize the utilization of available water

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