氮同化作用 的英文怎麼說
中文拼音 [dàntónghuàzuòyòng]
氮同化作用
英文
nitrogen assimilation-
After analyzing purple soil sampled from neijiang, leshan ofsichuan provinec and yuanmou of yunnan province, the contrast results of microbe quantity feature between surface and subsurface purple soil were obtained as follows. the content of soil organic matter, total and available nitrogen, phosphorous and potassium of surface was higher than subsurface, not relating to the type of purple soil and soil utilization way. the quantity of microbe _ bacteria, actinomyces and mould in surface purple soil was higher than subsurface, which indicated that the organic matter and airy condition in surface soil was more suitable for microbes growing. there was the same tendency in profile change of microbe quantity in purple soil located in temperate _ humid climate of sichuan basin in contrast with dry _ hot climate of yuanmou, yunnan. the nutrient situation of purple soil in sichuan basin shown that state of surface was better than subsurface, while in yuanmou of yunnan the state was on the contrary due to the degradation of surface soil
實驗室對四川內江、樂山和雲南元謀不同類型紫色土表層和亞表層微生物數量特性的比較分析表明:土壤有機質、氮磷鉀全量及其速效量均表現為表層高於亞表層,與紫色土類型和利用方式無關;三大類土壤微生物細菌、放線菌和黴菌數量均表現出表層高於亞表層,表明紫色土表層的有機質和通氣性優于亞表層,適宜於這三大類微生物生長;溫濕氣候條件下的四川盆地和乾熱氣候條件下的雲南元謀其紫色土微生物數量的剖面變化具有相同的趨勢,唯土壤營養狀況在四川盆地紫色土中表現為表層優于亞表層,而在雲南元謀紫色土中由於表層土壤的退化作用表現為亞表層優于表層的相反情況。Hydrogenated amorphous silicon nitride ( a - sinx : h ) films have been deposited by helicon wave plasma enhanced chemical vapor deposition ( hwp - cvd ), the effect of sih4 / n2 rate on the properties of the samples is systematically studied, and the critical experiment condition is obtained under which a - sinx : h films with different compositions are deposited
本工作採用螺旋波等離子體化學氣相沉積( hwp - cvd )方法制備了氫化非晶氮化硅( a - sin _ x : h )薄膜,系統地研究了不同反應氣體配比對薄膜特性的影響,得到了沉積不同組分a - sin _ x : h的典型實驗條件。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。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。The paper fristly compared the fertile soil with the incinerated sterile soil on the number of micro - algae, soil ph value, soil organic matter soil available phosphorus and soil nitrogen. and then, the author put fertile soil, which included micro - algae, proportionally into sterile samples and cultivated them respectively under illumination condition ( micro - algae can live and reproduce ) and dark condition ( micro - algae will die in some time ). the above indices were measured in 0, 30, 60 and 90days respectively, the analyse of the interrelation between the change of micro - algae ' s number and the changes of soil ph value, soil organic matter, soil available phosphorus and soil nitrogen indicated : ( l ) soil micro - algae which were native to fertile soil conld adapt to the changed circumstance and light acted as a decisive role to the distribution of soil micro - algae. under dark condition, the micro - algae ' s number declined gradually and went to zero in the end, while under illumination condition, on the 90th day, the micro - algae ' s number of per gramme was 6 - 7 times more than that of the beginning
本文首先對肥沃土壤與經高溫焚燒后的貧瘠土壤中的微藻數量、土壤ph值、有機質含量、有效磷含量和全氮量進行比較研究,然後將包含微藻的綠化苗圃地肥土按不同比例接種進入貧瘠土樣中,分別在光照條件和黑暗條件下進行培養,在0天、 30天、 60天和90天分別檢測以上指標,比較有光條件和無光條件下,即有藻條件和無藻條件下貧瘠土樣所發生的變化,並分別對微藻數量的變化與土壤ph值、有機質含量、有效磷含量和全氮量的變化之間做相關性分析,以評估肥沃土壤中的微藻接種進入貧瘠土壤后的生長情況以及對貧瘠土壤的改良作用。研究結果表明: ( 1 )土壤微藻對環境有較強的適應能力,且光照對其分佈起了決定性的作用。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。The influence of sinx deposited by pecvd in different condition, especially changing deposition temperature, on the gaas surface after sulfur passivation is measured by sims analysis combined with the test for direct current breakdown characteristics
用sims分析結合器件直流特性測試,比較了在不同條件下淀積的氮化硅對gaas硫鈍化表面的作用,特別是淀積溫度分別為80 、 80 / 230 、 230時對硫鈍化效果的影響。Putting the potassium permanganate into the filter can improve its effect, the removal of organics and ammonia is increased, the influent concentration can satisfy the water reuse standard. but the turbidity of influent is unsatisfactory. the c / n ratio is the key factor to influence the nitrogen - removal of the anoxic / aerobic two - stage baf when the reflux ratio 、 hydraulic loading and the ratio of gas to liquid in aerobic filter are fixed. the anoxic / aerobic two - stage baf has a good removal of organics at different c / n ratio when the reflux ratio is 2, hydraulic loading is 2. 55m ~ 3 / m ~ 2 ? h and the ratio of gas to liquid in aerobic filter is 3 : 1. the influent concentration of organics is blow 7mg / l. from the beginning to 30cm of the anoxic filter, the removal of the organics is significant ; as the c / n ratio increasing, the influent concentration of ammonia is decreasing. when the c / n ratio is 3. 60, the enfluent concentration of ammonia is 3. 05mg / l which satisfies the water reuse standard. when the c / n ration is less than 3. 60, because of the imperfection
迴流比為2 : 1 ,水力負荷為2 . 55m3 / m2 ? h ,好氧柱氣水比為3 : 1時試驗表明:不同的c / n ( 1 . 05 7 . 45 )下,兩級曝氣生物濾池對有機物有很好的去除作用,出水有機物濃度小於7mg / l ,其中在缺氧柱進水端30cm內對有機物的去除最為明顯;隨著c / n的增加,系統出水氨氮濃度降低,當c / n為3 . 60時,出水氨氮濃度降到3 . 05mg / l ,已經滿足回用水的氨氮標準; c / n < 3 . 60時,因為缺氧柱的不完全反硝化,體系中硝酸鹽氮和亞硝酸鹽氮發生積累影響了好氧柱的硝化反應使氨氮降解效果較差;系統對總氮的去除隨著c / n的增加而增加,當c / n為3 . 60時,出水總氮已經降到11 . 18mg / l ,滿足回用水的要求。However, the refractive index will increase with the increase of the flow ratio of sifu / nhs, slightly increase with the increase of substrate temperate, and decrease with the increase of rf power. by measuring the passivation results of hydrogen plasma and sinx thin film, we found an evident improvement of minor carrier lifetime in polycrystalline silicon after hydrogen plasma treatment, although it has little to do with the annealing temperature and time. the hydrogen contained in sinx thin film can enhance the carrier mobility of monocrystalline silicon, but after annealing at high temperature the mobility turns down
通過測試氫等離子體鈍化和氮化硅薄膜鈍化的效果,實驗還發現氫等離子體處理對多晶硅材料的少子壽命提高作用比較明顯,但是這種提高作用與處理溫度以浙江大學碩士學位論文王曉泉2003年5月及時間的關系不大;氨化硅薄膜中的氫對單晶硅的載流子遷移率提高有一定作用,但經過高溫處理后這種作用消失;氮化硅薄膜能提高單晶硅和多晶硅的少子壽命,具有表面鈍化和體鈍化的雙重作用;氫等離子體和氮化硅薄膜都能有效地提高單晶和多晶電池的短路電流密度,進而使電池效率有不同程度(絕對轉換效率0Through analyzing the effect of temperature and nitrogen on crude oil viscosity the influences of different nitrogen injection volume and injection modes on steam displacement are contrasted, the mechanism of nitrogen - assisted steam stimulation is clarified, which includes : heat carrying capacity is raised, the saturation of remaining oil is reduced after nitrogen - assisted injection is made ; crude oil flow is enhanced because of nitrogen compression and dispersion and the change of oil flow shape ; water back - production rate is improved by expanding the steam sweep volume and compensating in - situ energy ; steam distillation effect is enhanced
通過分析溫度、氮氣對原油粘度的影響,對比不同注氮量、不同注入方式等對蒸汽驅油效果的影響,弄清了氮氣輔助蒸汽增產的機理主要表現在:氮氣輔助后增加攜熱能力,降低殘余油飽和度,氮氣的壓縮膨脹作用分散和改變了原油流動形態,增強了原油流動性;擴大蒸汽的波及體積,補充地層能量,提高回採水率,強化蒸汽蒸餾效應。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。In the using of fertilizers, we must get rid of the method of over using nitrogenous fertilizer , which only emphasize on profit ; in the using of pesticides, we should get rid of the method of using the most effective pesticide regardless of its remains, at the same time we should speed up the construction of standardizing the planting and processing of vegetables
在化肥使用上,不能一直沿襲那種只圖效益、重施氮肥見效快的做法,要科學配方,平衡施肥,化肥和有機肥等合理搭配;在農藥使用上,改變哪種農藥見效快就用哪種農藥,甚至把大田作物農藥使用到蔬菜上的做法;同時要加快蔬菜種植、加工標準化建設。Soil nitrogen mineralization under different land use patterns in xishuangbanna
西雙版納不同土地利用方式下土壤氮礦化作用研究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。Superabrasive grinding wheels and tools combine a grinding surface made from diamond or cubic boron nitride with a resin or metal bonding system
-超硬磨具,其中含有金剛石或立方氮化硼磨料顆粒,並使用有機樹脂或金屬材料作為結合劑,使磨料顆粒固結成形,共同構成鋒利的磨削表面。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
與對照相比,氫處理培養有機質減少量小、堿解氮的增量高,脲酶活性、固氮能力、氨化作用都較強,並且不同種類的氨基酸也表現出各自相應的差異來。此外,土壤經氫處理后,土壤的ph上升, eh下降,土壤微生物生物量也呈減少趨勢。The law on component change of carbocoal from different temperature pyrolysis of yanzhou bituminous coal in ordinary pressure fluidized bed in nitrogen atmosphere is analyzed, especial change law of sulfur, and activation energy of pyrolysis carbocoal in different temperature is analyzed in thermogravimetric analyzer, it is found that activation decreases with pyrolysis temperature increasing
摘要利用兗州煙煤在不同溫度下常壓流化床氮氣氣氛的熱解半焦作為樣品,分析了半焦成分變化的規律,特別是硫的變化規律,並利用熱重分析儀分析了不同溫度下熱解半焦的活化能,研究表明隨著熱解溫度的升高,活化能逐漸降低。The authors have developed a device for measuring the normalized difference vegetation index ( ndvi ) by using four specially designed photoelectric detectors ; the ndvi can reflect the growing information and seasonal nitrogen fertilizer requirement of crops, and offers guidance for rational application of nitrogen fertilization
文中提出了一種由4個專門設計的光電探測器直接得到歸一化植被指數的測量方法,該參數能夠反映作物的生長狀態,知道不同季節的農作物對氮的需求量,對實施變量精準施肥具有重要的指導作用。Abstract : results of a ten year ' s field experiment indicated that the use of nutrients recycled in the farming systems with appropriate amount of fertilizer applied according to the soil nutrient supplying ability could not only produce high crop yield but also balance the soil nutrient budget so that there were no significant surplus of nutrients ( mainly inorganic nitrogen ) which may emit or leach out of soil into environment
文摘:持續10a的田間試驗結果表明,在保持農業系統養分循環再利用的基礎上,根據土壤養分供給力設計化肥施用量,可以在實現作物高產的同時,平衡土壤養分收支,從而避免土壤中肥料養分(主要是氮)過剩而進入環境。In this article, we would explore the carbon - nitrogen interactions in terms of distributions carbon and nitrogen reservoirs of tissues, the effects of carbohydrates on nitrogen uptake, and the effects between assimilation and metabolism of carbon and nitrogen
本文將就植物體內碳氮儲藏庫于各個器官間之分配情形、碳水化合物對氮吸收之影響,以及碳與氮同化與代謝之相互影響等方面,探討碳與氮之交互作用。分享友人