氮固定 的英文怎麼說

中文拼音 [dàngùdìng]
氮固定 英文
fixation of nitrogen
  • 氮 : 名詞[化學] nitrogen （7號元素, 符號n）
  • 固 : Ⅰ形容詞（結實; 牢固; 堅硬） firm; hard; solid Ⅱ副詞1 （堅決地; 堅定地） firmly; resolutely 2 [書...
  • 定 : Ⅰ形容詞1 （平靜; 穩定） calm; stable 2 （已經確定的; 不改變的） fixed; settled; established Ⅱ動詞...
  1. It can also restrain the decomposition of organic substances in the soil and the bind of nitrogen, and wash away the nutritious elements, such as magnesium, calcium, and potassium. the acid rain deprives the soil. it acidifies the rivers and lakes, and dissolves the heavy metal in the soil into water, therefore poisons the fish

    它可以直接使大片森林死亡，農作物枯萎；也會抑制土壤中有機物的分解和氮的固定，淋洗與土壤粒子結合的鈣、鎂、鉀等營養元素，使土壤貧瘠化；還可使湖泊、河流酸化，並溶解土壤和水體底泥中的重金屬進入水中，毒害魚類；加速建築物和文物古跡的腐蝕和風化過程；可能危及人體健康。
  2. We mensurate the number of the primary soil microbes such as bacteria, fungi and azotobacter with diluting flat technique, and mensurate the number of cellulose decomposing bacteria with mpn technique, and mensurate the biological quantity of the soil microbes with the technique of chloroform suffocating - inundation culture - colour - compared

    本文以長期壟作免耕試驗田為研究對象，採用稀釋平板計數法測定了土壤中主要的微生物細菌、真菌、自生固氮菌數量，用mpn （最大或然值法）測定纖維素分解菌的數量，採用氯仿熏蒸?淹水培養?納氏比色法測定微生物生物量。
  3. Study on nitrate - nitrogen removal and community analysis of denitrifying bacteria in downflow fixed - bed bioreactor

    下流式固定床反應器中反硝化細菌類群及其脫氮效率分析
  4. It has been 40 years since dobereiner and ruschel isolated the nitrogen - fixing bacteria from the rhizosphere of sugarcance plants and demonstrated the potential of diazotrophs to associate with graminaceous plants. more recent evidence of significant biological nitrogen fixation in economical important graminous species, particularly sugar cane, rice and forage grasses, has induced tremendous interest in ni fixation by non - legumes

    本研究分離、篩選得到一株固氮酶活性高且穩定，生長勢強的聯合固氮菌株，並對其分類地位、形態及生理特徵、對環境的適應性及其對植物的促生效果和作用機理作了系統研究，得結果如下。
  5. Stationary source emission. determination of nitrogen oxid. n 1 - naphtye - ethylenediamine dihydrochloride spectrophotometric method

    固定污染源排氣中氮氧化物的測定.鹽酸萘乙二胺分光光度法
  6. Whole cell c2d2 reduction by all four mutants comparing to wild type and ni / v mutant was also detected. the result showed that only single a - gln194 substitution did not perturb the stereospecificity of protonation of c2d2. the above comparing results indicate that in mofe protein ( 1 ) a a - gln190 site and its association with homocitrate are important for the transfer of electron / proton to femoco, while a - his194 site and the homocitrate are independent in h2 evolution

    對四個突變株細胞的c _ 2d _ 2還原特性及還原產物中反式-順式- 1 ， 2 -二氘代乙炔的比例進行了測定並與野生型及nifv突變株相比較，結果表明只有- gln ~ （ 194 ）替換不影響c _ 2d _ 2還原產物中反式-順式- 1 ， 2 -二氘代乙炔的比例，即未改變固氮酶還原c _ 2h _ 2加氫的立體構型的專一性。
  7. Nevertheless, use of soil incorporation for urea and anhydrous ammonia to reduce volatilization, the practice of delaying nitrogen fertilizer application in imperfectly drained soils to minimize denitrification and leaching, and patience in the case of immobilization will tend to resolve all these problems

    但是，採用把尿素和液氨和土壤摻混施用以減少氨揮發，在排水不良的土壤上採取延遲施氮期的辦法以減少反硝化及淋失，以及對于氮固定問題採取耐心克制的態度，這些問題就都能得到解決。
  8. The content of mineral nitrogen content ( nh4 + - n + no3 - n ) decreased during the incubation period after applying nh4 + - n fertilizer and urea. it maybe relates to the nh4 + - n fixation, volatilization, and its nitrification. ( 4 ) fertigation by drip irrigation increased the n uptake and accumulation of dry matter of summer maize, and improved the activity of crop photosynthesis

    與滴灌施用硝態氮肥相比，施用銨態氮肥和尿素后在培養期間土壤礦質態氮（ n03一n + nh獷一n ）的含量有降低的趨勢，降低的原因可能與nh4 +一n在土壤中的固定、揮發及硝化等過程有關。
  9. Change of the fixed ammonium content in soil in different growth stage of huanghuacai was similar with available n content

    在黃花菜生育期間，土壤固定態銨與堿解氮的動態變化基本一致。
  10. By the crop residue input, priming effects of soil irjcrobe will take place, and decomposition and bio - fixation give rise to soil organic matter arid m in the up layer of soil. on the other hand, tillage accelerate ; ; the organic matter mineralization and leads to the quantity of organic matter decreasing in. or 10cm. layer which is about 1 / 2 of soil organic matter under no - tillage

    覆蓋免耕使土壤上層的有機質和氮素穩定增加，這主要來自被激發的微生物繁殖時對碳和氮的生物固定，而傳統耕作則由於耕翻加速了有機物的礦化， 0 - 10cm土層微生物碳含量均一，其數值幾乎為免耕系統的一半。
  11. Whether placement of nitrogen fertilizer below the layer of crop residue will reduce nitrogen immobilization is not clear

    對于把氮肥施在植物殘體覆蓋層以下是否會減少氮的固定，這個問題目前尚不清楚。
  12. Stationary source emissions - determination of the mass concentration of nitrogen oxides - naphthylethylenediamine photometric method

    固定源輻射.氮氧化合物質量濃度的測定.萘二胺光度測定法
  13. Nitrate leaching, although slightly higher under no tillage, is generally not a major pathway of loss in summer crops

    實施免耕的初期，氮的生物固定明顯，但隨著時間的推延，這種作用逐漸消失，以至到了後期，與初期的情況正好相反。
  14. When p rate was fixed and n level raised, the rice yield still increased with the increasing k, but the increasing range declined

    固定施磷量而提高施氮量時，水稻產量低隨施鉀量增加而提高，但增產范圍縮小。
  15. Unless they succeed, the yield gains of the green revolution will be largely lost even if the genes in legumes that equip those plants to enter into a symbiosis with nitrogen fixers are identified and isolated, and even if the transfer of those gene complexes, once they are found, becomes possible

    他們曾經發現，即使那些基因聯合體轉移成為可能，除非他們獲得成功，否則綠色變革收獲的產量將大部分丟失，即使豆類的基因是可以識別和挑選，並且這些豆類的基因用氮固定這些植物和相互共存。
  16. Denitrification and nitrogen fixation in 10 cm 20 cm horizon are higher than those in other soil horizons, in which the partial pressure of oxygen is lower than that in surface horizon, and the number of microorganisms is more than that in below horizon

    高寒草甸土壤中未發現有好氣性自生固氮菌，但嫌氣性自生固氮菌的數量眾多。在高寒草甸嚴酷的自然條件下，嫌氣性自生固氮菌為大氣氮素固定的主要承擔者。
  17. Experiments in kentucky tend to show the same degree of immobilization when nitrogen is placed on crop residue or when placed below the residue layer

    但肯塔基的試驗結果似乎表明：無論把氮肥施在植物殘體上還是施在覆蓋層下，氮的固定程度相同。
  18. Nox. : stationary source emissions - determination of mass concentration of nitrogen oxides - reference method : chemiluminescence

    固定源排放.測定氧化氮
  19. In wastewater biodenitrification, the immobilized microorganisms technology by carrier immobilizing and granulation can provide effective methods in increasing biodenitrification velocity, saving carbon sources and decreasing upper aerating and realize single stage biodenitrification

    摘要在廢水生物脫氮中，利用載體固定、形成顆粒污泥等固定化微生物技術可在增加生物脫氮速度、節省碳源、減少后曝氣等方面提供有效的方法，並實現單級生物脫氮。
  20. In the profile of 0 ~ 40 centimeter depth, the content of fixed ammonium had no distinct change, and it increased or had no distinct change in the profile of 40 ~ 75 centimeter depth. the percentage of fixed ammonium to total n in soils steadily increased with the increasing of depth

    一般情況下，土壤剖面中的固定態銨含量在0 40cm范圍內變化不大， 40cm以下升高或無明顯變化；它占土壤全氮含量百分數則是隨剖面深度增大而增大。
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