N-fixing bacteria 固氮细菌 ; 固n菌
N-fixing property 固N特性
total n-fixing activity 单株固氮活性
non-N-fixing tree species 非固N树种
N-fixing trees 固氮树种
n-fixing activity 固氮活性
n fixing bacteria 生物固氮菌肥
n fixing intensity 固氮强度
n fixing symbiosis 共生固氮体系
Silicate bacterium has the strong ability of dissolving K, P and the ability of fixing n.
硅酸盐细菌有很强的解钾能力，同时还有解磷和固氮能力。
The biological effect of protectively applied nitrogen on nodulation N-fixing activity, nitrogen forms in Xyloid liquid, and amount of assimilated nitrogen in soybean were studied.
从大豆结瘤、固氮活性、木质部溶质氮形态以及植株同化氮量论证了保护性施氮的生物学效应。
Human activities such as fossil fuel combustion, nitrogen fertilizer production and cultivation of nitrogen fixing crops are the main sources of reactive n.
人类活动，如燃料燃烧、氮肥生产、固氮植物的培育和畜牧业的集约经营等是引起全球活性氮增加的主要原因。
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