Barsukova E. Agroclimatic resources of efficiency of summer barley in the Ukraine

Spring barley sowing in the Ukraine is the subject of inquiry. Estimation of agrometeorological condition influence on the spring barley rate of development, stem formation and yield as well as the estimation of agroclimatic resources of the Ukraine as applied to its cropping comprise the objective of the study. The research methods include the experimental field method, time-series analysis methods and mathematical simulation of plant productivity process. For the first time ever the basic model for estimation of agroclimatic resources has been modified and adapted for the territory of the Ukraine as applied to the spring barley crop. Patterns for influence of agroclimatic conditions on stem formation dynamics as well as increasing of various levels of agroecological crop capacity are established. An integrated assessment of agroclimatic resources is made and an agroclimatic zoning of the territory of the Ukraine is suggested as applied to spring barley cropping. Estimation of agroclimatic resources and the suggested zoning can be used for optimization of sown area structure for spring barley in the Ukraine.