The aim of the research is to study the processes ensuring the effective use of water, energy and other resources, as well as of crop productivity increase. At the same time, the anthropogenic load of the processes under consideration should be compared with the biological potential of the natural body and be based on the principles of ensuring its ecological stability at all hierarchical levels expressed in ecological limits. To solve this problem, it is required to create irrigation technologies excluding the irrigation water losses on filtration to the maximum, supporting the system of automorphic regime of soil-forming factors that provide for the biological processes cyclicity. The efficiency of this method is based on the detailed testing of the technological process components with the increase of their calculation accuracy in accordance with the current soil-climatic and organizational-economic situation, establishing the optimal rhythm of water delivery to the fields in accordance with the biological conditions of agricultural plants growth, the crops water consumption dynamics, creation of intensive information support of production. Data analysis shows that the interrelationships of bioclimatic coefficients obtained are characterized by a good correlation ratio from 0.87 to 0.93. Since the regression equations are obtained on the basis of empirical data, the areas of their use are limited by the range of variation of M0 from 0.6 to 1.2 with the humidity change interval in the calculated layer from 0.6 HB to HB.
Key words: biocycle, water consumption dynamics, calculation methods, control accuracy, evapotranspiration intensity, evaporation, differentiated irrigation practice.
