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- chemical nitrogen fixation 化学固氮
- Exertion of Biological Nitrogen Fixation in Order to Reducing the Consumption of Chemical Nitrogenous Fertilizer 发挥生物固氮作用减少化学氮肥用量
- 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。
- Nitrate content in plant tissue was increased with the percentage of chemical nitrogen in the mixture of chemical fertilizer and AFR. 沼肥中配施化肥 (简称沼化肥 ) ,随化肥氮比例增加 ,油菜硝酸盐含量增加。
- But improved farming methods later increased their use yields andin , at the same time, made better use of chemical nitrogen fertilizer. 但是不久以后改进耕种方法增加了农场的产量而且同时让化学氮肥的使用更合理。
- 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。
- 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。
- In the absence of chemical nitrogen fertilizer, the effective use of phosphate and potash fertilizers is largely limited to leguminous crops only (forage crops, green manure crops or pulses). 在没有氮化肥配合的条件下，磷、钾肥的有效利用仅仅局限于豆类作物如牧草、绿肥和豆类等等。
- 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。
- Scientists at the agroforestry center say the use of fertilizer trees can reduce the need for chemical nitrogen by up to three-fourths.And they say it can double or triple crop production. 农地林业中心的科学家称，使用肥料树木可以将对化学氮素的需求减少四分之三，还可以将土地产量提高两到三倍。
