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近年来国外对水稻田的化肥深施技术十分重视。因为与过去传统的表施化肥相比,深施对提高化肥利用率和水稻的产量都有显著的效果。而先进的稻田化肥深施机具的研制,对这一新技术的推广起着非常重要的作用。因此国际水稻研究所和国际肥料发展中心非常重视深施肥机具的研制。他们广泛搜集和吸取有关国家(包括
In recent years, foreign countries attach great importance to the deep fertilization technology of paddy fields. Because compared with the traditional past table chemical fertilizers, deep facilities to improve fertilizer utilization and rice yield have a significant effect. The development of advanced fertilizer facilities for paddy fertilizer plays a very important role in the promotion of this new technology. Therefore, the International Rice Research Institute and International Fertilizer Development Center attaches great importance to the development of deep fertilizers. They extensively collect and draw on the countries concerned (including