Iskakova O. Productivity of potato of different groups their ripeness according to the terms of nutrition on the drop irrigation in the conditions of southern Ukraine

The object of research - the growth, development and yield formation and quality of tubers of potato varieties different groups of ripeness for summer planting drip irrigation in southern Ukraine steppe. The purpose of research - identifying the characteristics of growth, development and yield formation and quality of tubers of potato varieties for summer planting drip irrigation on black southern steppe of Ukraine. Research Methods - Field; measurement and weight; laboratory; statistical; Comparative settlement. The research results - for theory: first to the south of Ukraine on the features of black southern growth, development and yield formation of three potato varieties different groups of ripeness for summer planting drip irrigation. The regularities and efficiency of the photosynthetic activity of plants and tuber quality by combining doses and methods of application of mineral fertilizers and ristrehulyuyuchyh substances. For practice, developed and put into production elements technologies of potato planting summer trickle irrigation in the southern black soil, which provides the yield at 25-28 t / ha tuber quality at saving material and labor resources. Scope - farms south of Ukraine.