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研究了苏南稻田不同种植制度与土壤持续生产力的关系。维持土壤持续生产力的实质是维持土壤肥力，多熟种植制度养分产出增加，加大了土壤养分的消耗，但有机物质生产增加，有利于有机物质归还和土壤有机质平衡。在多熟种植制度中间套插种绿肥等豆科养地作物和油菜、蔬菜等培肥作物，结合秸秆还田和轮作，将能维持稻田多熟制的土壤持续生产力。
The relationship between different planting systems and soil sustainable productivity in paddy fields in southern Jiangsu was studied. Maintaining sustainable productivity of soil is to maintain soil fertility, increasing the yield of nutrients in multi-cropping system and increasing the consumption of soil nutrients. However, the increase of organic matter production is conducive to the return of organic matter and the balance of soil organic matter. In the middle of multi-cropping system interplanting green manure and other leguminous crops and crops such as rapeseed, vegetables and other fertilizers, combined with straw and rotation, will be able to maintain the productivity of paddy more cooked soil.