PATTERNS OF CHANGES IN IRRIGATION STANDARDS AND WATER CONSUMPTION OF VEGETABLE CROPS DUE TO SOIL MOISTURE

The purpose of the research is to determine the patterns of changes in irrigation standards and water consumption of vegetable crops from soil moisture. Scientific research was carried out on experimental plots and in lysimeters with vegetable crops. The elements of water balances, studied soil layers of experimental plots and lysimeters are shown in tabular form. It was found that precipitation (97,195 mm) that fell during the period of growth and development of table beet, in the research years 2010 – 2011, and a lack of air humidity (1018,694 mb) affect the amount of total water consumption (510, 444 mm) and irrigation standards (414, 318 mm); at the same time precipitation for table carrots was (195, 282, 174 mm) in 2011-2013, air humidity deficiency (825, 685, 591 mb), total water consumption (444, 350, 293 mm) and irrigation standards (292, 168, 220 mm); and for potatoes, precipitation amounted to (175, 183, 252 mm) in 2013-2015, a deficit in air humidity (473, 729, 481 mb), total water consumption (252, 340, 284 mm) and irrigation standards (184, 257, 143 mm). It is determined that a change in the amount of moisture in the root layer of the soil affects the level of its content in the elements of the water balance during the cultivation of vegetable crops. A graph of the effect of soil moisture content on the value of irrigation standards has been obtained. The closeness of the relationship between these parameters is equal to 0.949+0.091. A graph of the relationship between the effect of soil moisture content on water consumption is obtained. The closeness of these parameters is equivalent to 0.945+0.092.