Optimization of tank irrigation systems in the rainfed region of Andhra Pradesh

Abstract

In India, tank irrigation was one of the primary sources of irrigation for most part of the rainfed regions. However, as of 2017–18, only 2.45% of irrigated area is under tank irrigation. The present study intends optimization of tank irrigation systems through different optimal scenarios. The detailed information on required variables was collected using a structured questionnaire from farm households for the period 2017–18 in Ananthapur district, Andhra Pradesh. The Linear Programming model was applied for the optimization of tank irrigation systems. The results revealed that the gross cropped area (9%) and net return (25%) have increased under the improved scenario (cement lining of irrigation channel). Further, the adoption of improved irrigation methods minimizes water losses and enhances water use efficiency and yield. Thus, optimization of tank systems augments the food and livelihood security of tank users, especially small and marginal holders. Therefore, to minimize the detrimental impact of climate change and scarcity of water, traditional water bodies along with efficient technologies are crucial for optimization

Keywords

• ICAR-National Institute of Agricultural Economics and Policy Research, New Delhi 110 012, India