Abstract
Based on the results of the research, a methodology for calculating the irrigation rate was compiled, taking into account the parameters of the moistening circuit, the characteristics of soil conditions and the general mineralization of irrigation water. Hydrocarbonate calcium waters predominate in the Central region, the total mineralization varies widely depending on the time of year and the type of water source. It is proved that this parameter affects the nature and rate of formation of the irrigation contour. The technique was tested at the experimental site of the Field Experimental Station of the RGAU-MAA named after C.A. Timiryazev when growing early ripe potatoes of the «Udacha» variety. Irrigation water savings amounted to 16%. The application of the proposed method for calculating the irrigation rate, taking into account the shape of the moisture contour and its geometric parameters, depending on soil conditions and mineralization of irrigation water, will fully reveal the advantages of drip irrigation in saving irrigation water and preventing its filtration into deep soil layers.
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