Method for repairing cadmium-polluted rice field by intercropping sedum alfredii and broad beans

The invention discloses a method for repairing a cadmium-polluted rice field by intercropping sedum alfredii and broad beans. The sedum alfredii and the broad beans are planted on an idle rice field in winter, so that effective utilization of land resources and photo-thermal resources is realized, and the winter-fallowed land and wasting of resources are avoided while soil of the rice field polluted by low-concentration cadmium is repaired; the cadmium content of fruits meets the national food safety limit standard under the condition that the yield of the broad beans is slightly reduced; themethod has important significance for ensuring the food safety of China and the health of people; and the cadmium is passivated to a certain extent, so that the cadmium is absorbed less by rice whichis used as a later crop. 本发明公开了一种利用东南景天和蚕豆间作修复镉污染稻田的方法，在冬季闲置稻田上种植东南景天和蚕豆，实现土地资源和光热资源的有效利用，修复中低浓度镉污染稻田土壤的同时，避免了冬闲抛荒和资源浪费，实现蚕豆产量略有减产下果实镉含量符合国家食品安全限量标准，对保障我国食品安全和人民健康具有重要意义，在一定程度上钝化镉，使后作水稻更少吸收镉。