Keywords:  complex fertilizer, pasture grass stand, productivity, dry matter, feed unit

// Мелиорация.— 2015. – № 2(74) – С 150 - 156.

The article presents the results of studies on the effect of simple shapes and complex brand N₁₀P₁₉K₂₅ fertilizer to prolong productive longevity pasture grasses. Simple forms of fertilizers in the amount N₄₅P_20-40K₉₀ or complex in a dose N₂₀P₃₈K₅₀(spring) and N₃₀P₅₇K₇₅ (spring or N₂₀P₃₈K₅₀ - spring + N₁₀P₁₉K₂₅ after 2 cycles of grazing) are economically reasonable to increase the yield of herbage of the sixth-eight year use with legume content of 20%. This provides a yield per hectare pasture of 5,32-5,95 t / ha of fodder units at the lowest cost 14,6-20,4 USD / t.