Effects of ΝΡ fertilisation on the nutritive value of herbaceous species

The various species of grasslands contribute to the herbage nutritive value in a different way. The combined ΝΡ fertilisation can improve this nutritive value substantially. The influence of ΝΡ fertilisation on the nutrient content of the main species was studied during 1989 and 1990 in a Chrysopogon gryllus -Dichanthium ischaemum grassland in Macedonia, Greece. The ferti1izer was applied at three leve1s: 0, 100N+100P and 200N+100P kg/Ha. lt was found that Ν,Ρ and Κ contents were increased more in grasses than in forbs.