氮素同化 的英文怎麼說

中文拼音 [dànsùtónghuà]
氮素同化 英文
assimilation of nitrogen
  • 氮 : 名詞[化學] nitrogen （7號元素, 符號n）
  • 素 : Ⅰ形容詞1 （本色; 白色） white 2 （顏色單純） plain; simple; quiet 3 （本來的; 原有的） native Ⅱ名...
  1. The rhizosphere microflora dynamics of bacteria, actinomyces, fungi and four bacterial physiological groups of kentucky bluegrass under different quality of illumination were studied by adopting selective culture medium to explain scientifically response regular of this grass to different illumination condition

    摘要研究了草地早熟禾在不同光照條件下其根際與非根際細菌、真菌、放線菌以及氨化細菌、硝化細菌、好氣性纖維素分解菌、固氮菌生理類群的區系動態變化，擬從根際土壤微生物數量變化方面來闡述草地早熟禾對不同光照條件的響應規律。
  2. The understanding of biogeochemical cycle of hydrogen, oxygen, carbon, nitrogen, and sulfur elements in nature ecosystem have increased substantially in the past two decades owing to the improvement of gas isotope ratio mass spectrometer and the wide application of isotopic studies with these elements

    摘要近20年由於氣相同位素比值質譜儀的改良和氫、氧、碳、氮和硫等穩定同位素的廣泛研究，穩定同位素的研究技術已實質增加我們對于這些元素在自然生態系中生地化循環的了解。
  3. Based on the analyses on mechanical properties, microstructure and fracture of - the microalloyed steels socrv with various heat treatment technique, it can be affirmed that various fractures arttribute to various mechanism, we can draw conclusion that the strength and toughness of microalloyed steels 50crv will be increase simultaneously by optimal heat treatment technique. to illustrate the mechanism of the strength and toughness of microalloyed steels socrv, we designed the comparative experiment and observed the microstructure of the sample which occurred at different quench and tempering temperature and different tempering time. the last experiment results were determined by the four factors : fined microalloyed elements grains, the decompound of martensite, martensite transformation of remnant austenite and the second phase precipitation

    為解釋微合金化50crv鋼強韌化機理，本文通過對不同淬火溫度，回火溫度，回火時間下的力學性能指標的對比及顯微分析，認為微合金元素的細化晶粒，馬氏體的回火分解，殘余奧氏體的轉變，第二相的沉澱析出共同決定了微合金鋼的強韌化情況，特別是由於微合金元素的存在，其細化晶粒及其碳氮化物的沉澱析出，導致鋼的良好的強韌性，並且如果工藝滿足第二相的沉澱析出強化大於回火馬氏體分解引起的軟化效應，會在硬度曲線中產生明顯的二次硬化現象。
  4. The dynamic change of nh4 +, no3 - and tn, under the situation which urea was applied in the high fertility paddy - field in yuhang of hangzhou city with a lysimeter which was designed and made by ourselves, was studied and analyzed in order to find the rules of the change in the water - body of surface and the leakage rule of nitrogen, to reduce the effect of nitrogen loss on the water pollution

    藉助自行設計製作的稻田滲漏計，在杭州餘杭對高肥力稻田不同施用尿素氮肥情況下，稻田地表水和滲漏水中銨態氮、硝態氮和總氮（簡稱三氮）的動態變化規律進行了研究分析，以利於發現氮素在地表水體變化和淋失規律，盡量減少氮素淋失對地下水體所造成的影響。
  5. The negative photoconductivity effect was found in the dimixing phthalocyanine composites. the experiment results indicated that the negative photoconductivity effects were closely related with the partial charge transfer from the center metals to phthalocyanine rings, and the separation efficiency of photocarriers was a key factor to the photoconductivity

    結果表明，共混復合后，其光電導性能表現出負效應，並發現酞菁中心金屬與其相連的氮原子之間的部分電荷轉移是引起復合體系光電導性能變化的根本原因，同時復合體系中的電子空穴對的分離效率是影響光電性能的一個重要因素。
  6. This paper aimed at present status that most researches assembled in chemical products, adopted different determine methods, represented the transformation characteristic of nitrogen among water and soil of the sulphureous urea, confirmed the nutrient release speed, found out the optimum determine method in agricultural production application

    針對目前對緩釋肥料釋放特性的研究集中在化工製作領域這一現狀，採用不同的測定方法，闡明含硫尿素中的養分氮在水及土壤中的轉化特點，確定養分的釋放速率，以求找出適合農業生產應用的方法。
  7. In light of current using situation and drawing on the experience of many scholars researched methods and viewpoints, this thesis made com land, fallow land, orchard, grass land as experimental field in black soil region jlau, which carried out experiment by applying different amounts of n and p fertilization in corn field. by means of collecting the samples of rainfall runoff, erosion silt and surface layer soil before and after rainfall for one year nature precipitation in field, we study the effect of surface runoff on n and p nutrient and fertility degeneration. the results showed : ( l ) there are lots of factors which affect soil erosion and losses of n and p, in which rainfall and rainfall intensity were more important, while rainfall intensity is the most important meteorological phenomena factor

    針對當前黑土利用現狀，本文借鑒眾多學者的研究方法和觀點，在吉林農大黑土區選擇利用方式不同的玉米地、休閑地、果園、草地，在玉米區進行了不同數量的施肥，通過野外試驗，採集一年自然降雨產流及泥沙樣品，同時採集降雨前後的耕層土壤樣品，研究了黑土區地表徑流對氮磷養分特徵及肥力退化的影響，結果表明：土壤侵蝕和氮磷的流失受諸多因素的影響，降雨量、降雨強度是重要因子，而降雨強度是影響農田地表徑流養分流失的最重要的氣象因子，特別是暴雨，暴雨徑流中氮磷濃度較平時高得多；隨作物生長，覆蓋度逐漸增加以及不同利用方式下表現的覆蓋度差異，氮磷流失都表現為顯著的差異。
  8. The present results indicated that enhanced uv - b radiation affected the absorption of nitrate, assimilation of nitrogen and synthesis of amino acids

    這些都嚴重影響了紫萍對硝酸鹽的吸收、氮素的同化和氨基酸的合成，進而也影響了植物體內蛋白質的合成。
  9. Based on the analysis of the data of carbon nitrogen isotopes and trace elements such as sr, ba ca et al. of the two pieces of excavated human bones of late period of dawenkou culture and period of chunqiu and zhanguo in upper shu river in shandong province, the research applied the analysis of carbon nitrogen isotope and trace elements into the study of ancient diet

    摘要本研究通過對山東沐河上游大汶口文化晚期及春秋戰國時期2塊人骨的碳、氮同位素分析和無機成分的掘、鋇、鈣等微量元素分析，探討了同位素和微量元素分析在古代人類食物結構研究中的應用問題。
  10. Soil nitrogen pool is the main body of terrestrial carbon pools, so it ' s change will possibly result in relatively great change of atmosphere n2o concentration, and, it ' s change will also affect global climate change. meanwhile, the nitrogen in the soil can also cause the water pollution through soil water infiltration and surface runoff

    作為陸地氮庫的主體，土壤氮庫的微小變化，可能導致大氣n _ 2o濃度發生較大的變化，以至影響全球氣候變化；同時土壤中的氮素也可以通過下滲和地表徑流等方式流入水體，導致水體污染。
  11. N sources ( including organic and inorganic n tested ) and c sources tested could restrain methane oxidation. cellulose inhibited methane oxidation most weakly while the high concentration of methanol and glucose did dramatically, but the proper concentration of methanol could stimulate soil methane oxidation sharply. in the middle process of methane oxidation, addition of glucose could restrain methane oxidation shortly but the inhibition could be relieved about 5 days later when supplied again with enough oxygen

    土壤微生物是甲烷氧化的主要生物類群，含水量對土壤甲烷氧化活性有明顯影響，過高或過低對甲烷氧化均具有抑制作用；氮源（包括有機和無機氮源）對甲烷氧化均有抑制作用；不同碳源對甲烷氧化的影響各異，纖維素對甲烷氧化抑制作用最小，而高濃度的甲醇、葡萄糖則對甲烷氧化具有強烈抑制作用；而適當濃度的甲醇可極大促進土壤對甲烷的氧化：在甲烷氧化過程中加入葡萄糖能迅速抑制甲烷氧化；在加入葡萄糖的同時保持瓶中充足的氧氣，則這種抑制作用可以在重新培養一定時間后得到解除。
  12. Under copper and cadmium stresses sulfur and organic fertilizer fertilizations increased the kernel weight at the maturing stage, the amounts of the photosynthates and assimilates transported into the kernels and the nitrogen contents in the kernels after flowering and the amounts of accumulated nitrogen after flowering

    在銅、鎘脅迫條件下，施用硫肥和有機肥處理增加了小麥成熟期籽粒重和花后光合同化物輸入籽粒量以及籽粒氮素含量和花后氮素積累量。
  13. When inadequate n was added, the chloroplast structure in mesophyll cell was damaged in ear leaf, the amount of carbohydrate decreased in mestome sheath, and excessive n - redistribution and n - transportation to grain from vegetative mass appeared, which resulted in earlier leaf senescence. excessive n application led to too high activity of nitrate reductase, excessive vigorous nitrogen metabolism and too much exhaustion of carbohydrate in ear leaf, which resulted in the lack of enough carbohydrate in the lower leaf, meanwhile, the expansive chloroplast grana lamellae in leaf mesophyll cell and starch grain without nuclear in mestome sheath cell was observed, which led to the decrease of chlorophyll content and photosythetic capacity in maize leaf, then the early senescence occured

    氮肥用量不足導致穗葉葉肉細胞葉綠體結構性差，維管束鞘細胞碳水化合物累積減少，營養體氮素再分配率大而引起葉片早衰；而過量供氮則導致生長後期硝酸還原酶活性過高，氮素代謝過旺，消耗了大量碳水化合物，以致下位葉不能得到充足的碳水化合物供應而提早脫落，同時葉肉細胞葉綠體片層結構膨脹，呈「肉汁化」特徵，維管束鞘細胞澱粉粒大量消耗，無核澱粉粒出現，從而葉片葉綠素含量下降，光合能力降低而出現早衰。
  14. In field study, the expenment on nitrogen transport and transformation in soils with different irrigation ( with both ground water and sewage effluent ) and fertilization levels has been conducted. with considenng the n - uptake, nitrification and demtrification processes, a model for describing no2 - - n transport and transformation in unsaturated soil has been applied. results show that, the n03 + - n accumulating in soil is contributed more by fertilization but lees by irrigation with sewage effluent, and the model can be used to simulate no3 - - n transport in soils

    在室外進行了不同清污水灌水量與施肥條件下氮素遷移轉化試驗，同時進行了考慮根系吸收，硝化和反硝化的田間非飽和no _ 3 ~ - ? n遷移轉化模型的數值模擬，研究結果表明與施肥相比，污水灌溉對土壤中no _ 3 ~ - ? n累積的貢獻較小，所建立模型可用於模擬no _ 3 ~ - ? n在土壤中的遷移。
  15. With adsorption and ion exchangeability, it is mainly used as additive in feed, it can absorb ammonia, fix nitrogen, delay the time nutriments stay in alimentary canal, absorb detrimental substance, improve the function of digest, supply many microelements and macroelemnts for livestocks

    主要用作飼料的添加劑，具有吸附性和離子交換性，能吸氨固氮延緩營養物質通過消化道的時間吸附腸道有害物質，改善消化機能同時可以供給畜禽多種微量和常量元素，促進增產增重，提高飼料報酬。
  16. The effects of n forms on contents of protein and protein components in grains were different between two wheat varieties with different n efficiency

    不同氮素形態對兩個不同氮效率小麥品種籽粒蛋白質及其動態變化、蛋白組分含量及其動態變化的影響不同。
  17. Chlorophyll content had no significant relation with the net assimilation rate, but was related to the nitrogen content and the specific leaf weight

    葉綠素含量與凈同化速率間沒有顯著關系，但與含氮量和比葉重有關。
  18. Fourthly, critical value of erosive modulus, which may cause soil carbon and nutrient changing, has been taken. the results of simulation showed that different soil nutrient element ( c, n, p, k ) have different soil acceptable erosive modulus in different land use types. for example, in this study, the critical value for nitrogen is located in the range of 1500 - 2000t / km2for forest land, 2000 - 2500 t / km2 for tillage land, 2500 - 3000 t / km2 for garden land, and 1000 - 1500 t / km2

    四、得到了引起土壤碳和養分發生變化的侵性模數閥值:通過對地塊土壤侵蝕模數、碳和養分含量變化的計算，得到了不同利用類型中不同元素含量出現下降的最低侵蝕模數閥值，如耕地全氮為2000一2500噸，果園全氮為3000一3500噸，林地全氮為1000一1500噸，草地全氮為1000 - 1500噸，從而為流域侵蝕治理規劃和生態環境建設提供了科學依據。
  19. The present paper studied the variation of dna methylation level in different developmental stage and different organs of non - heading chinese cabbage. germinated seeds and seedlings of non - heading chinese cabbage were treated with 5 - azacytidine ( 5 - azac ) ( demethylating agent ) combined with cold and gibberillin ( ga ). the assay analyzed the relationship between flowering and low temperature, ga and dna methylation and their interrelation

    本試驗採用去甲基劑5 -氮雜胞苷（ 5 - azac ）處理白菜的種子，並結合萌動種子和幼苗低溫處理及幼苗赤霉素（ ga ）處理，研究了低溫、赤霉素和dna甲基化與白菜開花及它們三者之間的關系，並測定了白菜不同生育期及不同組織器官核dna胞嘧啶甲基化水平的變化。
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