EFFICIENCY OF FERTILIZER APPLICATION ON LONG YEARS HERBAGES

The article presents the results of a study long-term herbage 71st year using the
 in Central Region Non-Chernozem Zone Russia, which over past 25, against an
 unfertilized background and with an unbalanced fertilization fertilizers, was transformed into a
 pasture type content grassland grains up to 50%. Against influence of
 mineral fertilizers (NPK), grass stand hay remains, foxtail reaches
 74%, higher dose nitrogen (N 180) awnless rump 70%.
 productivity pasture-type 55.9 gJ / ha MA, or about 4.5 thousand fodder.
 units from 1 200 - 850 kg crude protein (CP). increased 80.4
 GJ 6.5 fodder. ha, 756 1206 JV on average for 1993-
 2017 collection essential nutrients is direct proportion quality feed
 different systems.
 consumption by stands provided due natural fertility sod-podzolic medium loamy soils fertilized nitrogen
 1.8 times. On 2.6-4.3 times compared unfertilized
 stand. utilization rate 37 65%, phosphorus
 22-24%, potash 51-100%, hay-type stands, respectively, 48-84, 24-53 and
 106-120%.