When establish an artificial perennial grassland in the cold highland pastoral area,sowing mixed with oats (Avena sativa) properly not only can increase the grass output in the first year but also can improve the total output in the first two years.

• 研究结果表明，在高寒牧区建植多年生人工草地，适当混播燕麦不仅可显著提高播种当年的产草量，而且对提高前两年产草总量亦有效果。