固氮能力 meaning in English
nitrogen fixing capacity
nitrogen-fixing capacity
Examples
- Isolation and primary identification of a new nitrogng - fixation arthrobacter strain
一种有固氮能力的节杆菌菌株的分离和初步鉴定 - Use of 15n dilution method for screening soybean lines with high yield and high nitrogen fixation ability
稀释法筛选高固氮能力的大豆品种 - Effects of diverse environmental factors on the growth rate ( od4oo ) and nitrogenase activity ( ara ) of the strain w12 hi nitrogen - free culture were investigated in our experiments . the results implied that the strain w12 could easily adapt to different cultural conditions : it could use various carbon sources ( especially glucose , sucrose , malic acid , mannitol ) , propagate quickly and fix nitrogen at a temperature range of 15 ? to 40 ? and at 25 - 35 ? for optimum , at a ph range of 4 to 8 . 5 , at a saline concentration range of 0 . 01 % to 1 . 5 % ; low nlv " concentration had little effect on its nitrogenase activity . ara could also be detected when it grow in the culture media with 5mmol / l ntv "
W12菌株对环境因子的适应性研究：无氮培养条件下，测定温度、碳源、酸碱度、渗透压对w12生长及固氮能力的影响，结果表明，在15 - 40下均能生长并表达固氮酶活性，其最适生长及固氮的温度为25 - 35 ；能利用葡萄糖、蔗糖、苹果酸、甘露醇等多种碳源生长并固氮，当培养基中同时存在蔗糖和苹果酸时，细菌生长和固氮活性最强；在偏酸和偏碱的条件下( ph4 . 5 - 8 . 5 )均能保持较强的生长势和较高的固氮酶活性，并能通过调节自身代谢平衡并适应环境的酸、碱性变化，使培养液趋于中性：能耐受较高的渗透压，培养液中卜、 5 naci浓度对其生长和固氮酶活性影响不大，当naci浓度升至2时，菌株的生长势及固氮酶活性才有所下降：低浓度的铰对其固氮酶活性影响不大，在0 - The decrease of organic matter and the increase of alkali - hydrolyzable nitrogen of the hydrogen treatment were higher than the control , and urease activity , nitrogen fixation arnmonification had the same tendency , and amino acids had also changed . hi addition , comparing the control , ph of hydrogen treatment was increase and eh was decrease , and microbe mass was also too
与对照相比，氢处理培养有机质减少量小、碱解氮的增量高，脲酶活性、固氮能力、氨化作用都较强，并且不同种类的氨基酸也表现出各自相应的差异来。此外，土壤经氢处理后，土壤的ph上升， eh下降，土壤微生物生物量也呈减少趋势。 - The algae multiplied massively in suitable environment , and made the amount of available phosphorus in soil increase significantly . the influence of the base matter on available phosphorus in soil was much more significant . in the second step , nostoc commune and chlamydomonas sajao lewin were inoculated of different inoculation quantities to the barren soils
实验是在贫瘠土壤种接种具有固氮能力的念珠藻(蓝藻类)和沙角衣藻(陆生绿藻) ，在0 . 1g 、 0 . 5g 、 1 . 0g 、 2 . 0g湿藻重500g土重的不同浓度梯度进行接种，进行常温下培养。