查询词典 nitrogen fixation

In this paper,the research history and status were summarized.The processes of soil nitrogen input,interior transformation and output,including litter return,fertilization,atmosphere desposition,ammonification nitrogen fixation,ammonification,nitrification,denitrification,plant uptake,NH 3 volatilization and NO 3- leaching,were introduced.Finally,the tendency of study on soil nitrogen...

本文综述了森林土壤氮素转化与循环的研究历程和现状；介绍了凋落物的归还、施肥、大气沉降、自生固氮、氨化、硝化、反硝化、植物吸收、NH3 的挥发、NO3 -淋溶等土壤氮素输入、转化和输出的途径和过程；最后从研究目标、研究方法、研究对象和研究内容 4个方面归纳了森林土壤氮素转化与循环的发展趋势。

The paper reviews home and overseas research works on exhumation and use of nitrogen-fixing resource, genetics engineering of nitrogen fixation, and biochemistry of nitrogenase and chemical modeling of biological nitrogen fixation, and describe the prospect of biological nitrog...

本文从固氮资源的发掘和利用、固氮的遗传工程以及固氮酶生物化学和化学模拟生物固氮三方面对国内外的研究进展进行了全面的阐述，并对生物固氮研究的前景进行了展望。

The paper reviews home and overseas research works on exhumation and use of nitrogen-fixing resource, genetics engineering of nitrogen fixation, and biochemistry of nitrogenase and chemical modeling of biological nitrogen fixation, and describe the prospect of biological nitrogen-fixing research.

本文从固氮资源的发掘和利用、固氮的遗传工程以及固氮酶生物化学和化学模拟生物固氮三方面对国内外的研究进展进行了全面的阐述，并对生物固氮研究的前景进行了展望。

All the results indicated that Brazilian sugarcane also had a nitrogen-fixing capacity in Guangxi, Mo was propitious to regulate nitrogenase activity of nitrogen-fixing bacteria in sugarcane under nitrogenous conditions, and promoted nitrogen fixing; while under non nitrogenous conditions, it was unpropitious to regulate the nitrogen activity and inhibited nitrogen fixation of nitrogen-fixing bacteria.

上述结果说明：巴西甘蔗在本地也具有一定的固氮能力；在不缺氮条件下，钼处理较利于调节甘蔗体内固氮菌的固氮酶活性，促进其固氮；而在缺氮条件下，钼处理不利于调节甘蔗体内固氮菌的固氮酶活性，抑制其固氮作用。

A series of nitrogen fixation characteristics, such as nodule nitrogen fixation activity, nodule ureide content and young stem ureide content were studied in the same latitude and differently evolutionary types of soybean.

本试验研究了中国同一纬度不同进化类型大豆主要生育时期的根瘤固氮酶活性、根瘤酰脲含量和幼茎段酰脲含量。

The roots of many plant species exist in association with fungi as mycorrhizae or, as in the Fabaceae , with nitrogen-fixing bacteria to form root nodules.

在多种植物中，根和真菌生长在一起，如菌根或豆类中与固氮菌生成根瘤（参见 nitrogen fixation ）。

The discoveries of the hemoglobin genes which encode the hemoglobins related to symbiotic nitrogen fixation in legumes and those not related to symbiotic nitrogen fixation in legumes andnon-legumes including cereals , make reseajrchers have a new look, resulting in two kinds of planthemoglobins: symbiotic and nonsymbiotic hemoglobins.

对这两种血红蛋白的性质、功能、基因结构及表达等方面的研究不仅对共生固氮中植物与微生物的相互关系和固氮工程研究；而且对植物细胞的呼吸代谢和耐涝机理等研究有重要价值。

Outer boxes Genes of interest are shown around the ring as operons for sulfate reduction, carbon fixation via acetyl-CoA synthesis pathway, and nitrogen fixation.

在单股DNA链中，碱基之间的相互作用是一个堆叠在另一个之上，而且在双螺旋中，两个互补单股的碱基对之间的氢键发挥了关键作用。

Except total potassium and quick-acting phosphorus, every target in nitrogen fixation plantation was higher than that in non-nitrogen fixation plantation.

不同林型植被，土壤的腐殖化作用有明显差异，土壤有机质、各营养元素和阳离子交换量增加不同，除全钾、速效磷以外，表现为刺槐侧柏混交林＞刺槐＞侧柏＞荒地。

It has been proved that azotobacter CN-2 has a higher activity of nitrogen fixation in pure slant culture. Inoculated to wheat seen, the azotobacter can live in the rhizosphere, which has a higher activity of nitrogen fixation and improves nitrogen supplement to plant. Weight and nitrogen content of dry wheat seeding have been increased.

证实固氮菌CN-2具有较高的斜面纯培养物固氮活性，小麦播种时接种固氮菌，可以定殖在小麦苗根际并有较高的固氮活性，能显著改善小麦氮素供应，使苗干重、苗含氮量比对照均有较大幅度的提高。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。