近两年来,省、地、县农业科研单位和一些社、队试验场开展了绿肥利用方式和留种技术的试验示范,创造了不少好经验。把绿肥插入轮作制中,既不降低复种指数,又增加了肥抖,用地养地相结合。现将几种比较成功的试验示范结果整理简介于后,供生产中参考。一、麦田套种草木栖作晚红薯底肥各地试验证明,早春在麦行套种草木栖,6月15—20日翻压,每亩鲜草产量 In the past two years, provincial, prefectural and county agricultural research institutes and some community and team test sites have conducted experiments and demonstrations on green manure utilization and seed-keeping technology and have created many good experiences. The green manure into the rotation system, neither reduce the cropping index, but also increased the fat shake, the combination of land. Now several more successful demonstration results of the experiment after finishing, for the production of reference. First, the wheat interplanting vegetation habitat late sweet potato at the end of base fertilizer test proved that early spring wheat interplanting grass habitat, June 15-20 pressure, fresh grass yield per acre