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１９９２１９９４年在亚热带低山区（四川芦山县）进行了填闲混播冬性一年生牧草与水稻轮作的经济生态效益的研究。结果表明，混播冬性一年生禾草和豆草与水稻轮作，即意大利黑麦草＋紫云英→水稻、意大利黑麦草＋南苜蓿→水稻和意大利黑麦草＋白三叶草（营养体）→水稻三种轮作方式在水稻产量高于或稍低于对照（ＣＫ→Ｒ）但差异不显著的情况下，获得了高的饲料价值（ＴＤＯＭ５．１８５．４５ｔ／ｈｍ２，ＣＰ１．６９１．８４ｔ／ｈｍ２，ＭＥ３．７６４．０１×１０４ＭＪ／ｈｍ２）和良好的营养互补作用。填闲混播一年生豆、禾牧草提高了农田生态位的利用效率，改善了土壤结构和营养状况。
19921994 Study on Economic and Ecological Benefits of Mixed Winter Winter Pasture and Paddy Rotation in Subtropical Low Mountain Area (Lushan County, Sichuan Province). The results showed that the winter annual grasses and soybean plants were mixed with rice rotation, that is, ryegrass + astragalus → rice, ryegrass + southern alfalfa → rice and ryegrass + white clover (nutrient) → rice The crop rotation pattern obtained high feed value (TDOM5.185.45t / hm2, CP1.691.84t / hm2, ME3.) With higher or slightly lower yield of rice (CK → R) but no significant difference. 764.01 × 104MJ / hm2) and good nutrition complement each other. Mixed leisurely mixed annual bean, grass and pasture improve the utilization efficiency of farmland niche, improve the soil structure and nutritional status.