PROKOPCHUK I. Efficiency of liming chernozem podzolic of the right-bank forest steppe zone of Ukraine under long-term application of fertilizers in field croprotation

Object - the acid-basic mode of podzolic chernozem at long application of various dozes of fertilizers and systems of fertilizer in a field crop rotation, its changes and other parameters of fertility under influence of liming. The purpose - to find out features of formation of the acid-basic mode of soil and also to determine influence of liming on agrochemical parameters of podzolic chernozem of a different fertility level. Methods - general scientific and special. Theoretical results - on the basis of balance calculations of a stream of calcium in system soil-environment expediency of realization of supporting liming of podzolic chernozem is proved. Practical results - recommendations for realization of liming in a field crop rotation on podzolic chernozem of Right-bank Forest-steppe of Ukraine are developed. Novelty - influence of long (35 years) fertilization on dynamics of acidity of podzolic chernozem in a field crop rotation is determined, change of its fertility parameters and productivity ofcultures under influence of liming, the expediency of realization of liming directly under sugar beet is proved. Degree of introduction - it is introduced in facilities of the Cherkassk area on the 203 hectares. Sphere - an agricultural production.