Yarmolenko O. Hucerna and cereal grass mixtures productivity depending on the component species composition and the level of mineral fertilization under the conditions of the right bank Forest Steppe of Ukraine.

The object of the research - lucerna and cereal grass mixtures growth and development processes and productivity formation depending on the level of the mineral fertilizers and nutrition components correlation. The objective of the research - to reveal the peculiarities of lucerna and cereal grass mixtures productivity formation on black soils of the right bank Forest Steppe of Ukraine. Methods of the research - field, measuring and weight, analytical, mathematical and statistical, calculating and comporative. The results of the researches concerning the problems of the study of fabaceous and cereal grass mixtures productivity depending on the level of mineral fertilizers and nutrition components correlation in them are given in the dissertation. Mineral fertilizer in the rate N90 P90 K120 with nitrogen portion N30 is recommended to increase the productivity and nutriatiousness of fabaceus and cereal agrofitocenozes on typical black soils. The result of scientific researches are applicated in FE "Shyrokostyp" (Kagarlyc district Kiev region) on the square 100 ha and "Agrofirm Royasta" (Myronivska district Kiev region) on the square 70 ha. The branch of application agricultural.