Management of gardening by intensive type in agricultural production implies unconditional use of drip irrigation for local water supply to the area of intensive water consumption of fruit trees. The significant cost of a drip irrigation system necessitates a constant search for ways to improve the operation of this system. Therefore, it is important at the design stage of a drip irrigation system and in the process of her further operation to establish the features and geometric parameters of the formation of soil moistening zones during irrigation. The purpose of the research was to determine the peculiarities and parameters of formation of zones of moistening of the medium-loam soil with drip irrigation of apple trees on the rootstock M-9. Experimental study to determine geometric parameters of the moistening zones: depths, widths at the surface and at depth, was conducted at the same pre-irrigation humidity in all layers of medium-loam soil using the automatic Internet station of soil moisture iMetos ECO D2 (Echo Probe sensors 200 SS). The study was carried out in production conditions in an apple orchard, which is territorially located in the village Sofiyivka, Belozersky district, Kherson region. Depth-to-width ratio (h/d) was calculated over the period of experiments, and actual areas the zones moistening were calculated depending on the duration (norm) of watering. The linear dependences of the geometric parameters zones of moistening on the time (norm) of irrigation were obtained: the area, the depth of the zone, its width on the surface. In the future, it is recommended for of drip irrigation on medium-loamy soils of the dry-steppe zone of Ukraine, to use experimentally established linear dependences of moistening zone parameters
drip irrigation, watering duration, zones moistening, intensive-type garden, medium-loamy soil, linear dependencies
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