豆科及非豆科固氮树种是重要的生物固n资源。
Nitrogen fixation trees of Leguminosae and non-Leguminosae are important biological nitrogen fixation resources.
环境因子的限制一直是豆科植物-根瘤菌共生固氮体系没有在农业生产中充分发挥作用的重要原因之一。
Environmental factors are always one of the major reasons why the symbiotic nitrogen-fixing system of rhizobia and legumes cannot come into full play in agricultural production.
钼是豆科作物固氮酶复合体组成的必需元素。
Molybdenum is an essential element consisting of nitrogenase enzyme complex.
豆科植物的根瘤固氮占生物固氮总量的40%。
Nitrogen fixed by legume root nodules accounts for 40% of total biological nitrogen fixation.
豆科植物由于其高的粗蛋白含量，良好的适口性，较高的生产力及经济有效的固氮价值越来越受到人们的重视。
Leguminous plant has been thinking highly because its high protein content, good palatability, higher productivity, economic and high-performance nitrogen fixation is attracted increasing attention.
其中研究的较早的生物固氮菌是与豆科植物共生固氮的根瘤菌。
Early study object of the biological nitrogen fixation bacterium is the Rhizobium which related to the nitrogen fixation of the Leguminosae.
豆科植物的共生固氮作用一直是科学研究的热点问题，但在高寒草甸上研究的比较少。
Symbiotic nitrogen fixation of legumes with azotobacteria was a hot topic of scientific research, but less focus on alpine meadow community.
推测可能是由于水稻中缺少了这些豆科结瘤素基因，导致水稻不能结瘤固氮。
It was suggested that the lack of these leguminous nodulin genes in rice might result in its disablility for nodulation and nitrogen fixation.
推测可能是由于水稻中缺少了这些豆科结瘤素基因，导致水稻不能结瘤固氮。
It was suggested that the lack of these leguminous nodulin genes in rice might result in its disablility for nodulation and nitrogen fixation.
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