水稻深层追肥是我国具有悠久历史的施肥技术。“塞秧兜”、“插豆饼”等深层追肥措施,长期以来为稻区广大贫下中农所采用。近年来,国外一些国家为提高水稻产量推行深层施肥技术有新的发展,其中心要点 Rice deep dressing is our country has a long history of fertilization technology. “Seedling pocket ”, “plug bean cake ” and other deep dressing measures, for a long time for the vast majority of poor and middle peasants used in the area. In recent years, some foreign countries have made new progresses in promoting the application of deep fertilization technology in rice production. The key points