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汉语拼音：gù dàn

空气中分子态的氮，通过微生 物的作用转化还原成能被植物利用的氨态氮的过程。能为植物提供氮素营养。

• Among the blue - green algae are many species of nitrogen fixation.

  许多种蓝藻有固氮的能力.

• Mycorhizae perform the function of nitrogen fixation and storage.

  菌根起着固氮和贮氮的作用.

• Nodule bacteria are very good at biological nitrogen fixation.

  根瘤菌是生物固氮的能手.

• The alder nitrogen fixation promoted growth of the after crop.

  十年生桤木林采伐迹地上,桤木固氮改良土壤,并促进后续植物的生长.

• Nitrogen - fixing activity of modulating soybean could be inhibited by nitrogen applied.

  在本试验中,施用氮肥抑制了结瘤大豆的固氮活性.

• Soil drought reduced moisture content and nitrogenase activity of nodules.

  土壤干旱降低田菁根瘤的含水量和固氮活性.

• Alder ( Alnus nepalensis ), an important non - legume nitrogen - fixing plant, occurs widely in the eastern Himalayas.

  桤木 ( Alnusnepalensis ) 是一种重要的 非 豆科固氮植物, 广泛分布于喜马拉雅山脉东部地区.

• Dinitrogenase The enzyme that catalyzes NITROGEN FIXATION.

  固氮酶:能催化固氮反应的酶.

• The population diversities and enrichment of nitrogen - fixing bacteria were higher than others in Nanjiang and Xingwen.

  南江和兴文两地的固氮细菌种群丰富,其多样性和丰富度指数均较大.

• Acacia is a kind of fast growing wood that strongly fit for soil in south China.

  相思树是我国南方一种对土壤适应性强,根瘤固氮的速生树种.

• Some phytoplankton can fix nitrogen and can grow in areas where nitrate concentrations are low.

  一些浮游植物可以通过固氮在硝酸盐含量较低的地区生长.

• Reduced products were analyzed by GC to determine of nitrogen - fixation activity in biologically compound fertilizer.

  研究生物固氮活性,国际公认的方法是乙炔还原法.

• The growth period, nitrogen fixation , growth condition and other growth characteristics of Nostoc. sp were studied.

  摘要研究了念珠藻的生长周期 、 固氮特性 、 生长条件等生长特性.

• Specific organisms and organism by - products were used to fertilize restore nitrogen and control pests.

  特别生物体及作为产品的生物体被用于浇灌、固氮和灭虫.

• Production of amino acids is linked to the assimilation of nitrogen by the plant.

  氨基酸的生产过程与植物固氮有关.