固氮

The %FNDA of Lespedeza bicolor was not significantly correlated with net N mineralization.

胡枝子固氮作用与净氮矿化量不存在显著相关关系。

Soil net N nitrification would increase with the increase of the %FNDA of Lespedeza bicolor. Lespedeza bicolor could fix a large amount of N〓, but was also likely to increase the N leaching loss.

胡枝子固氮作用越强，土壤有机氮的净硝化量就越大，胡枝子在从大气中获取大量〓的同时，很可能会增加氮素的淋溶损失量。

Also,the differences between those in sandy habitat and those in non-sandy habitat are significant.2 There existed two common factors called macroelement factor and trace element factor,which indicate the contents of macroelements and trace elements in the plants respectively.

豆科与禾本科相比，豆科植物因其具固氮能力，所含大量元素水平较高，而禾本科植物因细胞壁硅质化，含微量元素稍高；沙质生境因其养分贫瘠，植物的大量与微量元素均较非沙质生境中的低；特别是本区地带性土壤-栗钙土与特异性生境沙带中的疏林沙土相比，疏林沙土上植物大量与微量元素含量较栗钙土区植物明显偏低。

The pot experiment indicated that different strains symbiotic nitrogen fixation efficiency and the ammonium molybdate concentration were related.

盆栽试验表明，不同菌株共生固氮的有效性与钼酸铵浓度相关。

The biological nitrogen fixation is a global strategic problem, and is very significant to environment, food and population and so on.

生物固氮是一个全球性的战略课题，它对环境、粮食、人口等问题有着重要意义。

Plants have been genetically adjusted to perform nitrogen fixation and to produce their own pesticide s.

植物已有基因上的调整，以进行固氮，并产生自己的杀虫剂。

Plants have been genetically adjusted to perform nitrogen fixation and to produce their own pesticides.

植物已有基因上的调整，以进行固氮，并产生自己的杀虫剂。

Being the joint of biological nitrogen fixation and bacteria classification,Rhizobium taxonomy is one of the most important fields.

根瘤菌分类作为生物固氮和细菌分类两个领域的结合点，具有十分重要的意义。

The prospect of employing nitrogen fixation in agriculture is promising.

在农业中应用固氮作用的前景良好。

Biological nitrogen fixation, which provides all the plants on the globe with 75% of fixed nitrogen, is one of the important projects in life science.

生物固氮为全球的植物提供75%的氮素，是生命科学中的重大课题。

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。