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本项研究旨在为四川盆地亚热带低山丘陵区增产饲料发展牧业探索高效的旱地混潘冬性一年生牧草－玉米短期草田轮作系统。重复了三年，所有资料为三年的平均值和共同趋势。研究结果表明，混播冬性一年生禾草和豆草与玉米轮作，即意大利黑麦草（20％）＋紫云英（80％）→玉米、意大利黑麦草（30％）＋南苜蓿（70％）→玉米和意大利黑麦草（25％）＋长柔毛野豌豆（75％）→玉米三个轮作系统。在玉米产量稍低于对照但差异不显著的情况下，获得了很高的饲料价值（DM5．31～5．77t／hm2，TDOM4.06～4．36t／hm2，CP1．10～1．58t／hm2，ME3．18～3．39X104MJ／hm2，Ca33．62～52．49kg／hm2，P27．79～30．59kg／hm2），较充分地利用了禾草和豆草的共生互惠作用，提高了农田生态位的利用效率，从而获得较高的总生产效率。
The purpose of this study is to explore an efficient annual dry grassland-maize short-rotation grassland rotation system for high-yield dryland mixed-winter winter grazing in the subtropical hilly region of Sichuan Basin. Repeated three years, all data for the three-year average and common trend. The results showed that annual wintergrass and beangrass were mixed with maize rotation, ie, Italian ryegrass (20%) + milk vetch (80%) → corn, Italian ryegrass (30%) and southern alfalfa → Maize and ryegrass (25%) + Viburnum pea (75%) → maize three cropping systems. High yields of feed values (DM5.31 ~ 5.77 t / hm2, TDOM 4.06 ~ 4.36 t / hm2, CP1.10 ~ 1.58 t) were obtained with slightly lower yield of maize / Hm2, ME3.18 ~ 3.39X104MJ/hm2, Ca33.62 ~ 52.49kg / hm2, P27.79 ~ 30.59kg / hm2), more fully utilize the symbiotic mutual benefits of grass and soybean grass, improve The efficiency of farmland niche utilization, so as to obtain a higher total production efficiency.