固氮的

The soil nitrogen status is a function of the processes of nitrogen fixation , microbial decomposition, nitrification and denitrification

土壤氮状况是一个固氮、微生物分解、硝酸化和脱氮过程的作用。

Moreover, the ability to develop a symbiotic relationship resulting in nitrogen fixation varies markedly among strains of Rhizobium.

而且，不同的根瘤菌中这种共生关系和固氮能力明显不同。

Effects of Boron on the Growth, Nutrients and Nitrogen-Fixing Ability of Chamaecrista rotundifolia

施硼对圆叶决明植株生长、养分含量及固氮能力的影响。

This research will be helpful for getting better knowledge of the evolution of Frankia strains, and provide scientific materials for protecting and utilizing of this nitrogen-fixing symbiotic resource.

该研究可加深对Frankia菌起源与进化的认识，并为保护和利用这一固氮共生资源提供科学依据。

Objective］ With Hippophae and Elaeagnus root nodules as research objects, the species diversity of nitrogen-fixing actinomycetes was studied.

［目的］以沙棘和沙枣根瘤为研究对象，深入研究固氮放线菌物种的多样性。

Nitrogen-fixing activity of nodulating soybean could be inhibited by fertilizer nitrogen applied.

在本试验中，施用氮肥抑制了结瘤大豆的固氮活性。

The results obtained from this study are of very significance for the conservation, management and utilization ofthe nitrogen-fixing woody legume resources in Dinghushan.

本研究结果为鼎湖山木本豆科固氮植物资源的保护、管理和开发利用提供了科学论据，在理论和应用方面均有重要意义。

The study indicated that Choerospondias axillaries cropped with peanut wasn't optimum agroforestry model and it couldn't be extended blindly in subtropical China, that N〓-fixing shrub should be chosen to intercropped in farmland rather than tree, and that shade tolerance plant should be chosen to intercropped in orchard garden or man-made forest rather than photophilous plant in alley cropping system.

总之，花生南酸枣间作不是低丘红壤地区优化农林间作模式，不适宜盲目发展。在红壤农田系统中实行农林间作应优先选择固氮灌木，而非高大的乔木；在果园或人工林系统中实行农林间作应优先选择耐荫植物，而非花生等喜光作物。

Anoxygenic phototrophic bacteria are good model organisms used to study the origin and evolution of life, photosynthesis and nitrogen fixation mechanism.

不产氧光合细菌一直是研究生命起源与进化、光合作用和固氮机理的良好模式生物。

The nodule nitrogen fixation activity, nodule and young stem ureide contents of semi-cultivated soybean were highe...

根瘤和幼茎段酰脲含量也表现出与根瘤固氮活力类似的趋势。

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。