Object – processes and properties that characterize the reproduction of soil fertility, crop fertilization systems and crop rotation productivity, bioconversion of organic waste, agroecological bases of products` application of of biological processing of livestock. Purpose –theoretical substantiation of fundamental and solution of applied scientific problems of soil fertility reproduction in the systems of agriculture of Polissya and Forest-steppe with the use of traditional and new types of fertilizers that will increase the productivity of crop rotations and environmental protection. Methods – abstract-logical, complex ecological, field, laboratory, statistical, mathematical (dispersion, regression, correlation), calculation. Theoretical results – it was theoretically substantiated and solved a new scientific problem related to the optimization of mineral nutrition of plants with traditional and alternative farming in the areas of Polissya and Forest-Steppe. The position on the need to maintain physicochemical and agrochemical parameters of soils was scientifically substantiated, in particular, the priority in the formation of their fertility of the amount of absorbed bases, dominated by calcium and magnesium cations, conservation and reproduction of which are crucial in soil formation. Practical results – there were improved and developed modern systems of fertilizers for farms of different specializations, created a new generation of organo-mineral bioactive fertilizers, determined the effectiveness of fertilizers in bioactive fertilizers and plant growth stimulants as determinants of yield and product quality. Scientific provisions and developments of dissertation are highlighted in the guidelines. Technologies were developed and there were obtained three Declaratory patents for the invention for the creation of various compositions of organo-mineral bioactive fertilizers, as well as biologically active components (biota). Novelty – agrochemical and agroecological bases of long-term (for 25-50 years) application of traditional and new types of organic and mineral fertilizers in field crop rotations of Polissya and Forest-steppe of Ukraine were substantiated, which provides conservation of soil fertility, increase of productivity of agricultural crops; a comprehensive assessment of the state of agrocenoses with systematic loading with moderate and high doses of livestock effluents of industrial pig farms was carried out; scientific principles and a model of renewable fertilizer system with the involvement of local organic resources, growth stimulants with minimal use of mineral fertilizers were developed; regularities of change of physical and chemical properties of soil, indicators of humus and nutrients under various systems of fertilizers and soil and climatic conditions were defined; compositions were developed and new multicomponent organo-mineral bioactive fertilizers with fertilizing, reclamation, sorption and biotic properties obtained on the basis of bioconversion of organic matter for the needs of modern agriculture were created; the economic and energy efficiency of application of optimal doses of organic, mineral and organo-mineral bioactive fertilizers in field crop rotations of Polissya and Forest-steppe was substantiated. There were improved: fertilizer system and standards for the use of liquid manure from pigs, products of its biological processing in combination with crop by-products and greens in field crop rotations and criteria for preventing chemical and biological pollution of the environment by livestock waste; doses and methods of application of new organo-mineral bioactive fertilizers for growing crops. It was a way forward for: scientific approaches to the standardized combined use of organic and mineral fertilizers in intensive technologies and the economic and environmental inefficiency of a purely mineral fertilizer system was substantiated; scientific provisions on the transformation of soil organic matter under different fertilization systems during long-term systematic application of fertilizers; the issue of the need to maintain the balance of physico-chemical and agrochemical parameters of the soil under moderate and intensive loads of crop rotations with litter-free manure of pigs and products of its processing. Degree of implementation - the main results were implemented in the farms of Kyiv, Zhytomyr, Cherkasy and Poltava oblasts on an area of over 5.6 thousand hectares. Branch - agriculture.
