Improving cotton irrigation methods in erodible soils of Tashkent province, Uzbekistan

Abstract

Agricultural degradation areas are increasing worldwide. From them, 56% due to water erosion, 28% due to wind erosion, 12% due to soil nutrient depletion, salinization, pollution processes, and 4% due to densification, swamping, and subsidence processes. As a result of such negative processes and the existence of the water shortage problem in 80 countries of the world, 7 million hectares of arable land are withdrawn from agricultural use every year, and the problem of food security is arising in the world. In this article, the results of scientific research and cost-effectiveness calculations on 3 different slopes of cultivated fields on soils prone to irrigation erosion are written. In Uzbekistan, great attention is paid to solving the problems of improving land reclamation and increasing the productivity of irrigated lands. In the Action Strategy for the further development of the Republic of Uzbekistan in 2017-2021, it is stated that “... further improvement of the reclamation condition of irrigated lands, development of the network of reclamation and irrigation facilities, wide introduction of intensive methods of agricultural production, first of all, modern water and resource-saving agrotechnologies, highly productive tasks on the use of agricultural machinery” are defined. It is necessary to develop new technologies for effective methods of increasing the productivity of lands prone to irrigation erosion in order to implement part of the specified tasks.