Panfilova A. Agroecological substantiation of technologies for growing winter wheat and spring barley under different nutrition systems in the conditions of the Southern Steppe of Ukraine

Object of research - processes of scientific substantiation of technological measures of formation of productivity and quality of grain of winter wheat and spring barley in the conditions of the Southern Steppe of Ukraine. The purpose of the research is theoretical substantiation and development of adaptive technologies of optimization of production processes of winter wheat and spring barley plants for their cultivation in the conditions of the Southern Steppe of Ukraine by using modern restrictive drugs. Research methods - field; laboratory; comparative calculation; statistical, computational and comparative-computational. Research results - For theory: For the first time, the peculiarities of grain yield formation of winter wheat and spring barley varieties grown on southern chernozem by using foliar fertilization of crops with restrictive drugs in the main phases of plant growth and development are scientifically substantiated. It is established that the studied factors influenced the level of yield and the main indicators of grain quality. By optimizing plant nutrition, they improve and moisture is used much more efficiently. For practice: Based on the results of scientific research, elements of grain growing technology adapted for the conditions of the Southern Steppe of Ukraine have been developed, which increase the grain yield of winter wheat and spring barley depending on the application of resource-saving measures by 9.4-23.5 and 14.7 respectively. 26.5%. Production testing of technologies confirmed their high economic efficiency.-. Scope - agricultural enterprises of the southern region of Ukraine.