Abstract
Nowadays, more than 155.7 thousand km of irrigation networks are operated by WUA, farms and clusters. 95% of irrigation networks were built and commissioned in the 80s of the last centuries.The parameters of the irrigation canals, built in the 70-80s of the XX century, are set for irrigation of cotton and alfalfa irrigated agriculture during the growing season 170-210 days. Irrigation networks have been designed for this crop rotation scheme.Since 1993, the rotation scheme has changed to cotton-wheat. Irrigation networks began to operate continuously throughout the year after the transition of agricultural production to the cultivation of autumn cereals, which require irrigation from October to May. As a result, it has become difficult to carry out repair work on irrigation networks.In addition, irrigation networks have been designed, built and operated by adapting crops to traditional irrigation systems. In recent years, large-scale work has been carried out on the widespread implementation of water-saving technologies in agriculture.
Highlights
Drip irrigation on 77.5 thousand hectares, sprinkler irrigation on 1.2 thousand hectares, pulsar irrigation technology on 2.0 thousand hectares and irrigation using flexible pipes on more than 200.0 thousand hectares are widely used, and furrow irrigation is carried out on more than 300,000 hectares. This method should lead to a reduction in the number of water resources used in agriculture, as well as a decrease in the amount of water taken from canals
If the amount of water taken from the source decreases, technical and technological problems related to the transportation of water resources in most irrigation networks arise [1]
One solution to these scientific and technical problems will be the construction of water intakes and dams for efficient water transportation in irrigation networks
Summary
Drip irrigation on 77.5 thousand hectares, sprinkler irrigation on 1.2 thousand hectares, pulsar irrigation technology on 2.0 thousand hectares and irrigation using flexible pipes (flexible hoses) on more than 200.0 thousand hectares are widely used, and furrow irrigation is carried out on more than 300,000 hectares. This method should lead to a reduction in the number of water resources used in agriculture, as well as a decrease in the amount of water taken from canals. We present the results of research aimed at solving these scientific and technical problems
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