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植物生长需要阳光、水和肥料。而肥料中以氮肥最为重要,要提高作物产量,必预施大量的氮肥。豆科植物根部附有根瘤菌,可以把空气中的氮转化为氨,供生长所需。因此,即使在贫瘠土地上也能正常生长。所以,日本国立遗传研究所开始对能否使水稻、小麦等也象豆科植物那样具有固氮能力进行研究。如果能使水稻、小麦等具有固氮能力,就可大幅度地节约氮肥。这对无法足量施用氮肥的亚洲、非洲地区的粮食增产将是个贡献。
Plant growth requires sunlight, water and fertilizer. The nitrogen fertilizer in fertilizer is the most important, to improve crop yields, pre-applied a large amount of nitrogen fertilizer. Rhizobium attached to the roots of legumes converts nitrogen from the air into ammonia for growth. Therefore, it grows normally even on poor land. Therefore, the Japanese National Institute of Genetology began to study whether rice, wheat and other nitrogen-fixing ability as legumes can be studied. If you can make rice, wheat, etc. have a nitrogen-fixing capacity, you can substantially save nitrogen. This will contribute to the increase in grain output in Asia and Africa that can not be fully applied with nitrogenous fertilizers.