Ptashnyk M. The impact of fertilizer application rates and terms on yield and grain quality of winter rye on podzolic chernozem of Right-Bank Forest-Steppe of Ukraine

Object - the regularities of influence of mineral fertilizers on soil nutrient regime, formation of winter rye crop and its quality when grown on chernozem podzolized. Purpose - to establish optimal standards and terms of application of fertilizers under a winter rye to obtain stable yields of high-quality grain on chernozem podzolized of the Right-Bank Forest-Steppe. Methods - field experiments, laboratory, computational and comparative, statistical. Theoretical results - developed theoretical approaches to solving scientific and practical problems of optimization of winter rye nutrition on chernozem podzolized of Right-Bank Forest-Steppe of Ukraine by using different types and norms of mineral fertilizers in the optimal time based on the results of soil and plant diagnostics. It is revealed the regularities of the influence of norms of fertilizers and the timing of their application on the nutritional regime of the soil, the dynamics of the main indicators of winter rye plant growth and absorption of the main nutrition elements, the formation of the crop and its quality. Practical results - it is recommended to use the system of mineral fertilizers, which provides a balance of essential nutrients in the soil and allow to grow stable yields of winter rye on chernozem podzolized Right-Bank Forest-Steppe with high grain quality and fertilizer payback. Novelty - was established the effectiveness of different norms and terming of mineral fertilizers application for winter rye and developed a system of fertilizers for modern high-yielding varieties, which increases their resistance to lodging, provides high productivity and optimal protein content in grain. Was clarified the consumption of the basic nutrients elements on the formation of units of the crop of winter rye under the conditions of the Right-Bank Forest-Steppe of Ukraine. The degree of application - research results was implemented in Private Rental Company "Sokolivka" on an area of 78 hectares and in the Private Farming Company "Konelsky farm" Zhashkov district of Cherkasy region on an area of 45 hectares. The field is agriculture.