Dynamics of the botanical composition of sown hayfields depending on fertilization

Aim. To establish the effect of fertilization and foliar feeding with growth regulator organic balance on formation fodder productivity legume-cereal grass stands. Methods. The study was carried out in conditions Western Forest-Steppe dark gray podzolicglayed slightly washed soil Institute Agriculture Carpathian Region NAAS. technology growing perennial grasses experiment, addition to factors that we studied, is generally accepted recommended for research area. In varieties legume cereal included State Register bred by breeders our were sown. Results. obtained data from a temporary field established 2017, influence stands indicate introduction mineral fertilizers spring vegetating can regulate botanical composition stand favors leguminous thereby affect yield quality mixtures. Conclusion. On average three years first, second third mowing, most favorable development legumes plots fertilized P60K90 (50.4, 45.7 34.4%) control (38.7, 40.7 31.4%). Additional nitrogen (N60) reduced their share 14.4, 19.8 20.8%.