The Effect of perennial and annual grasses mixture in plateau area

As a demonstration of converting cropland to pasture in the plateau region,oat(Avena sativa) and slender wheatgrass(Efymus trachycaulum) was sown as mixed pasture.The result showed that the method not only solve the problem of weeds,but also obtain better economic benefits.Oat fresh grass yield at the flowering stage was 2.49 kg/m2 in the first year.Slender wheatgrass grew better in the second year,the fresh yield was 1.48 kg/m2,and reached to 1.76 kg/m2 at later growth stage.