Mismatch between Supplies and Demands of Canal Water in a Major Distributary Command Area ofthe Nagarjunasagar Left Canal

Abstract

Scientist, Division of Agricultural Engineering, ICAR Research Complex for NEH Region, Barapani, Meghalaya 793103 b_krishnarao@rediffmail.com Principal scientist, Water Technology Centre, IARI, New Delhi-110012. tbsraj@iari.res.in A study was conducted in the command area of Guvvalagudem major distributary of the Nagarjunasagar Left Canal, Andhra Pradesh to determine weekly canal water supplies and demands and to examine if any imbalances between the two exist in the command area. It was concluded that most of the times canal supplies were lesser than the design capacity and there were wide gaps between weekly canal water demands and supplies. The mismatch between the annual supplies and the annual demands were lesser in magnitude (up to 20%) when compared to the weekly mismatches, which went up to 100% in some cases. ewe. 1988. Water and related statistics. Central Water Commission, Government of India. 314. FAO. 1998. Crop Evapotranspiration: Guidelines for Computing Crop Water Requirements. FAO Irrigation and Drainage paper 56, 57-139. Ministry of Irrigation. 1984. A guide for estimating irrigation water requirements. Technical Series No.2, Water Management Division, Govt. of India, New Delhi. Rao M S. 1984. Studies on optimum conjunctive water use in agriculture. Ph. D. Thesis, IARI, New Delhi. Rao V V. 1987. Evaluation of water management practices in canal command area - A case study of Paladugu major distributary. M. Sc. Thesis, IARI, New Delhi. Rao V V. 1992. Studies on water management in irrigation canal command areas - a case study. Ph. D. Thesis, IARI, New Delhi.