DYNAMICS OF SOIL MOISTURE DURING DRIP IRRIGATION OF INTENSIVE APPLE ORCHARDS IN THE FOOTHILL ZONE OF ZHAMBYL REGION

Abstract

The article presents calculations on the formation of a humidification contour during drip irrigation for intensive apple orchards, the location of drops is justified by conducting research with one, two, four drops for perennial apple trees growing on light gray soils in order to maintain humidity corresponding to 0.7 - 0.8 HB in conditions of insufficient natural moisture in in the foothill zone of the Zhambyl region, the intensity and time of operation of the water providing humidification. As apple trees grow and develop, the need to moisten the root layer along the drip line increases until the wet contours are completely covered. The establishment of the regularities of the process and dynamics of the formation of soil moisture, depending on the value of the irrigation rate during mass watering of apple orchards, has been established. Development of a mathematical model describing moisture exchange in the root layer of the soil during drip irrigation, and analytically solved the problem of moisture transfer, justified the parameters of the drip irrigation system using mathematical planning methods.