Olifir Y. The influence of the long-term application of fertilizers and lime on fertility of the light-grey forest soil and productivity of crops in crop rotation.

Object - the agricultural chemistries and physical and chemical processes of light-grey forest soil, productivity of agricultural cultures in a crop rotation at the protracted application of fertilizers and lime. Purpose - determination of ways of saving and increase of fertility of light-grey forest superficially surface-glee soil, establishment of general conformities to the law and regional features of agricultural chemistries transformations which take place in soil subject to the condition the protracted and systematic bringing of pus, mineral fertilizers and lime, and their influence on forming of the nourishing regime and productivity of cultures of crop rotation. Methods - the field protracted experience agricultural chemistries methods (chemical and physical and chemical), mathematically-statistical, economic and power evaluation. Novelty - in the conditions of western Forest-steppe on light-grey forest one soil conformities to the law of changeof agricultural chemistries properties, maintenance of humus, acid-basic indexes nourishing regime, are set soil but their influence on a size and qualities of harvest of cultures of crop rotation subject to the condition the protracted (40-years-old) application of different doses of fertilizers and lime. Grounded system of fertilizer in a crop rotation, that provides saving and extended recreation of fertility of light-grey forest soil but receipt of the stable economic justified harvests of cultures of crop rotation, and also certainly sign of degradation soil cover at the mineral system of fertilizer. Results of researches - are used in practice and research work. Branch - agricultural sciences.