氮均衡 的英文怎麼說
中文拼音 [dànjūnhéng]
氮均衡
英文
nitrogen balance-
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菌株對環境因子的適應性研究：無氮培養條件下，測定溫度、碳源、酸堿度、滲透壓對w12生長及固氮能力的影響，結果表明，在15 - 40下均能生長並表達固氮酶活性，其最適生長及固氮的溫度為25 - 35 ；能利用葡萄糖、蔗糖、蘋果酸、甘露醇等多種碳源生長並固氮，當培養基中同時存在蔗糖和蘋果酸時，細菌生長和固氮活性最強；在偏酸和偏堿的條件下（ ph4 . 5 - 8 . 5 ）均能保持較強的生長勢和較高的固氮酶活性，並能通過調節自身代謝平衡並適應環境的酸、堿性變化，使培養液趨于中性：能耐受較高的滲透壓，培養液中卜、 5 naci濃度對其生長和固氮酶活性影響不大，當naci濃度升至2時，菌株的生長勢及固氮酶活性才有所下降：低濃度的鉸對其固氮酶活性影響不大，在0The result indicated that, the output value per labour force, the output value of unit field area, the output value per person are the major indexes of the first principal components, the balance index of n, the output value per labour force and the pesticide quantity per unit field area are the major quotas of the second principal components, the balance index of p, the balance index of k and the output value per person are the major indexes of the third principal components
結果表明：勞均產值、單位耕地產值、人均產值是決定第一主成分的主要指標；氮平衡指數、勞均產值、單位耕地施用農藥量是決定第二主成分的主要指標；磷平衡指數、鉀平衡指數、人均產值是決定第三主成分的主要指標。This product can supply general dissolved nitrogen, phosphorus and potassium, etc, thus to keep nourishment balance and physical function normal
補充通常水溶性氮、磷、鉀等，提供均衡的營養，維護生理正常。
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