Optimal Use of Irrigated Lands Through Water-Saving Technologies and Development of Water Supply Systems in Agriculture

In the coming years, Kazakhstan will continue to experience a reduction in the internal resources of river basins due to a decrease in the inflow of transboundary river waters from neighboring countries, the poor technical condition of water management infrastructure, a large share of irrigation water losses, climate change, and extremely low rates of adoption of water-saving technologies. The optimal use of irrigated lands is a key factor in increasing agricultural productivity, ensuring sustainable water use, and securing food safety. In the context of the Republic of Kazakhstan, the relevance of the topic is determined by the limited availability of water resources, high water losses under traditional irrigation methods, and the need to improve the economic efficiency of agricultural production. Studies emphasize the importance of introducing water-saving technologies (drip irrigation, sprinkler systems, subsurface irrigation, and regulated irrigation) and modernizing the water supply system to achieve efficient resource distribution and minimize operating costs. The purpose of this work is to optimize the cropping structure on irrigated lands through the use of water-saving technologies and irrigation equipment. This article examines the problem of obtaining the maximum net income from crop production on irrigated lands using a drip irrigation system, taking the peasant farm “Samgau” of Korday District, Zhambyl Region, as an example. This goal was achieved through economic-mathematical modeling of production processes on irrigated lands.