您要查找的是不是：
- free nitrogen fixation 游离氮气固定
- "Nitrogen fixation Any natural or industrial process that causes free nitrogen in the air to combine chemically with other elements to form more reactive nitrogen compounds such as ammonia, nitrates, or nitrites." 固定氮: 使空气中富含的不活泼气体－－游离氮与其它元素化合而生成较活泼化合物的自然或工业过程。
- Dinitrogenase The enzyme that catalyzes NITROGEN FIXATION. 固氮酶：能催化固氮反应的酶。
- 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。
- 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.
- Nodule bacteria are very good at biological nitrogen fixation. 根瘤菌是生物固氮的能手。
- Characteristics of Symbiotic Nitrogen Fixation by Sesbania cannabina. 普通田菁的共生固氮特性
- 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。
- Distribution and Effect of Molybdenum on Nodulation and Nitrogen Fixation in Myrica rubra Sieb. Et Zucc. 钼对杨梅结瘤固氮的影响及在植株体内的分布。
- It is a gaseous loss, unrelated to loss by physical processes such as through leachates. 2) The breakdown of nitrates by soil bacteria, resulting in the release of free nitrogen. 是一种汽化式的散失，而非经由物理过程如渗漏的流失。(2) 经由土壤中的细菌分解硝酸盐而释放出自由氮。此种过程常发生于厌氧环境下，如浸泡在水中的土地；会降低土中养份。
- 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。
- The results of acetylene reduction detection showed that 88.5% were effective for nitrogen fixation. 乙炔还原活力测定结果表明 ;88.;5%25为有效根瘤。
- Nitrogen fixation trees of Leguminosae and non-Leguminosae are important biological nitrogen fixation resources. 摘要豆科及非豆科固氮树种是重要的生物固N资源。
- The influence of pesticide on effect of nitrogen fixation of abiogenous Azotobacter was also determined. 还运用茚三酮显色反应检测农药对自生固氮菌固氮效果的影响。
- The root nodule of the legume plant's ability of nitrogen fixation from air makes it grow in the poor soil very well. 摘要豆科植物的根瘤可以从空气中固定氮气而在贫痔的土壤中生长。
- The soil nitrogen status is a function of the processes of nitrogen fixation, microbial decompostion, nitrificattion 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。
- 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。
- The fitted multivaliate quadratic regression equation can better express the relation between nodulation and nitrogen fixation of alder and physical-chemical factor of the soils. 桤木结瘤固氮与土壤理化因素的关系,可用多元二次回归方程表达。
- The macroelement factor was higher in Leguminosae plants than in Gramineae plants as the plants of Leguminosae had the capacity of nitrogen fixation. 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；
