The effects of nitrogen and phosphorus dases on yield and botanical composition in the pastures yayci villageis of Iğdır province

This study was carried out to determine the effects yield and botanical composition of different doses of nitrogen and phosphorus on Yaycı village subirrigated pasture in 2013. In this research, combinations of 3 different nitrogen doses and 2 different phosphorus doses were applied 4 replications. The botanical composition consisted of; 64.23% grasses, 13.85% legumes and 21.92% other families. Fresh and dry matter yield were increased significantly by 50 kg/ha N and 50 kg/ha dose of phosphorus was observed to increase the dry matter production. Fertilizer levels did not affect botanical composition of the pasture. As is in botanical composition, fertilizers had no effect on, ADF, NDF, and R.FV, crude protein contain, crude protein yield. According to the results 50 kg/ha N and 50 kg/ha P2O5 could be suggested for subirrigated pasture to improve dry matter yield in Iğdır plain.