Karichkovska G. Peculiarities of nitrogen fertilizing for spring rape on podzolic chernozem of Forest-Steppe zone of Ukraine

Object - processes of transformation of a nitric mode of podzolic chernozem at different ways of mineral fertilizers application. The purpose - to determine ways of a nitric nutrition optimization of summer rape plants at application of different dozes, forms, terms and ways of nitric fertilizers using on podzolic clay-loam chernozem of right-bank Forest-steppe of Ukraine. Methods - general scientific and special. Theoretical results - appropriateness of influence of different forms, terms and ways of nitric fertilizers application on changes of a nitric mode of soil, its biological activity, a water mode, weeds quantity in crops, dynamics of increase of vegetative weight and formation of a summer plants seeds yield and its quality is determined. The expediency of application of the developed system of fertilizers is proved. Practical results - optimum system of nitric fertilizers using under summer plants from which feedback will be the highest. Novelty - for the first time in conditions of right-bankForest-steppe of Ukraine for podzolic chernozem a system of summer plants fertilizer which provides application of nitric fertilizers in the spring under preseeding cultivation and provides the maximal gain of a yield of seeds, a high recoupment of fertilizers and high net profit is carried out. Degree of introduction - results of researches are introduced in agrofirm "Dobro", USLL "Druzba" and a farm "Alaska" of Umansky region of the Cherkassk area (60 ha). Sphere - an agricultural production.