The Study of Mixtures of Perennial Grasses and Vegetables in the Environmental Conditions of Someşelor Plateau (Cluj County) Note 2: The Evolution of Floristic Composition

Abstract

The usage of complex mixture for temporary grassland is an important source of fodder in terms of climate changes in the last decades. The establishment of temporary pastures in Cluj County is a viable technological alternative. The research results presented in this paper show the evolution of floristic composition of complex mixtures of 8 perennial grasses and legumes, fertilized on three levels (0N0P2O5; 60N70P2O5; 120N70P2O5 kg ha^-1) in the environmental conditions at Jucu, a representative pratoecosistem in Someşelor Plateau. In 2010, regardless of the fertilizer, the legumes developed best in mixture 7 (76%), composed of Trifolium pratense L., Lotus corniculatus L., Trifolium alexandrium L., Dactylis glomerata L., Festuca pratensis Huds., Lolium x hybridum Hausskn. In 2011, the legumes (79%) developed beste in mixture 3 (Lotus corniculatus L., Onorbrychis viciifolia Purpose., Dactylis glomerata L., Festuca pratensis Huds., Bromus inermis Leyss.), the unfertilized version.