The effect of seeding rates and cutting time on yield and quality of mixture pasture

The effect of different seeding rates and cutting time on forage yield and quality of alfalfa and smooth bromegrass mixed pasture was studied. The results showed that the forage yield of alfalfa and smooth bromegrass mixed at 50%(7.5 kg/hm2) and 50%(15 kg/hm2) achieved the highest (21.3 t/hm2). T2 treatment（cutting at alfalfa initial flowering stage）obtained the highest yield. Cutting time had significant influence on the quality of alfalfa. Crude protein content in T1 treatment (cutting at alfalfa bud period) was the highest, with the lowest NDF and ADF (P0.05). Cutting time had significant influence on the quality of alfalfa and smooth bromegrass, and the quality was perfect in the mixture treatment A1 (alfala∶smooth bromegrass=5∶5).