Dergiler / Turkish Journal Of Field Crops / 2005 / Cilt: 10 - Sayı: 1PERENNIAL RYEGRASS (Lolium perenne L.)Nitrogen Effects on Yield and Forage Quality of Perennial Ryegrass (Lollium perene L.)Sebahattin Albayrak,Mustafa GülerDergiTurkish Journal Of Field CropsSayı2005 · Cilt: 10 - Sayı: 1Sayfa16–22DOI—