Keywords:  alfalfa, brome, botanic composition, dactylus glomerata, yield structure, green mass, corn

// Мелиорация. – 2017. – №4(82).– P. 24—31

The article study how to improve fertilizer system for perennial legume grasses and corn for green mass. It was found that clover of the 1st year of use had weak reaction to fertilizer just on middle-phosphorus and middle-potassium soils. At the same time on the area with 11-years old alfalfa these fertilizers enriched productivity by 46–79 %. Economic efficiency of perennial legume grasses is higher compared with corn.