贵州省剑河县山高坡陡,交通不便,大部分田地分布在坡顶和半坡山腰上,施用化肥成本高,投入劳动强度大,严重制约着土壤肥力及农作物产量的提高。近年来,城镇化建设加快,农民外出务工增多,对耕地的精耕细作程度已逐渐降低,加上长期大量施用化肥,有机肥施用量减少,导致耕地有机质迅速减少,地力急剧下降。为促进绿肥恢复性生产,提升耕 Jianhe County, Guizhou Province, the steep slope, traffic inconvenience, most of the distribution of land in the top of the slope and the Banpo mountainside, the high cost of fertilizer application, labor-intensive, seriously restricting the soil fertility and crop yield increase. In recent years, accelerating urbanization and increasing peasant migrant workers have gradually reduced intensive cultivation of cultivated land. Coupled with long-term large-scale application of chemical fertilizers, the use of organic fertilizer has decreased, leading to a rapid decrease in the amount of organic matter and a drastic drop in soil fertility. In order to promote the recovery of green manure, increase farming