Значение оптимизации питания в стабильности формирования урожайности зерновых культур в зоне юга Украины

Abstract. The article presents the results of studies on the optimization of winter and spring grain crops nutrition and its impact on grain yield. It was established that with improving nutrition conditions plant productivity significantly increases in comparison with the control one regardless of the weather conditions of the year of cultivation, the crop species and even its varietal characteristics. The authors substantiated the positive impact not only of the preceding crop and mineral fertilizers on the optimization of plant nutrition, but also the beneficial effect of the modern biological preparations and the growth-regulatory substances used both separately in the main phases of vegetation, and on the background of low (starting) doses of NPK. The data reveal the high efficiency of the application of estimated fertilizer doses on the planned crop productivity, taking into account the content of mobile nutrients in the soil of a particular field