氮素過量 的英文怎麼說

中文拼音 [dànsùguòliáng]
氮素過量 英文
nitrogen excess
  • 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...
  • 過 : 過Ⅰ動詞[口語] （超越） go beyond the limit; undue; excessiveⅡ名詞（姓氏） a surname
  • 量 : 量動1. （度量） measure 2. （估量） estimate; size up
  • 過量 : excessive; overdose; surfeit; excess; overmeasure; overage; bellyful
  1. We have studied pharmacodynamics of valepotriates through observing its effects on the times of spontaneous motion in mice, the sleep time of sodium pentobarbital ( superthreshold doses ), sleep rate of sodium pentobarbital ( subthreshold doses ), the number of writhes induced by acetic acid and seizures rate of metrazol. the experiment results proved that valepotriates could significantly decrease the times of spontaneous motion, prolong the sleep time of sodium pentobarbital ( superthreshold doses ), enhance the sleep rate of sodium pentobarbital ( subthreshold doses ), reduce the number of writhes induced by acetic acid and reduce the seizures rate of metrazol, so it showed high central inhibition effect, thus offer scientific foundation for its further exploitation and utilization

    通過研究蜘蛛香中總纈草素對小鼠自發活動的影響、對戊巴比妥鈉睡眠時間的影響、對戊巴比妥鈉閾下劑量的影響、對小鼠扭體反應的影響、對戊四氮誘發驚厥的影響發現：總顆草素能明顯抑制小鼠的自主活動，顯著延長戊巴比妥鈉致小鼠睡眠時間，明顯提高閾下劑量戊巴比妥鈉小鼠入睡數，對抗戊四氮誘發的小鼠驚厥，顯示出較好的中樞抑制作用，為蜘蛛香的進一步研究開發提供了科學依據。
  2. Solid substrate - room temperature phosphorimentric determination of trace tin in calcein - potassium persulfate - tin system with 1, 10 - phenanthroline as sensitizer

    鄰二氮菲增敏錫催化過硫酸鉀氧化鈣黃綠素固體基質室溫?光法測定痕量錫
  3. No, a first gas information molecule discovered in human being, is a typical endothelial - derived relaxant and mediates endothelium - dependent relaxation of blood vessels. in the pathogesis of endotoxin shock vec is one of the major target cells of lps and lps - induced proinflammatory cytokine such as tumor necrosis factor and interlukin 1 and activated. in vec inducible nitric oxide synthase ( inos ) is induced and lead to an increase in production of no, the while endothelial nitric oxide synthase ( enos ) is inhibited and elicit decrease in no formation, both of which are demonstrated to induce the

    在內毒素休克過程中vec是lps及其誘導機體產生的多種促炎細胞因子如tnf 、 il - 1作用的主要靶細胞， vec誘導型一氧化氮合酶（ induciblenitricoxidesynthase ， inos ）激活、 no大量誘生而內皮型一氧化氮合酶（ endothelialnitricoxidesynthase ， enos ）活性被抑制、 no生成障礙，是血管反應性異常變化、血管調節機制紊亂的重要發病環節。
  4. 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。
  5. Based on 2 - d - optimum orthogonal design field experiment in the jointing - heading period of phleum pratense l., the results show that potassium content is the most productive on the seed yield, phosphorus comes next and nitrogen the least

    摘要採用二因素d -飽和最優設計，通過貓尾草拔節抽穗期的根氮、磷、鉀和莖葉氮、磷、鉀的含量對其種子產量和產量因子進行灰關聯熵分析。
  6. The result of experimentation on coupling effect of water and fertilizers on spring corn in the three gorges reservoir area indicate that water stresslead the effect low of highness and lai, and the most effect is made in shooting stage ; it has a significant positive correlation between the yield of corn and biomass, and hasn ' t none significant positive correlation between the yield of corn and the weight of roots ; the coupling effect of water and n is significant, but the coupling effect of water and k is not significant, the maximum yield of corn condition fitting - water and medium n, corn absorbs n has a threshold value during the growth, and using superfluous n is able to prick up soil drought and crop drought ; water is the leading factor which effects the yield of corn, next is n and k

    摘要三峽庫區春玉米盆栽水肥耦合試驗研究結果表明，水分脅迫導致玉米株高和葉面積指數降低，以拔節期受到影響最大；玉米產量與生物量呈顯著正相關關系，產量與根重無顯著正相關關系；水氮耦合效應顯著，適宜水分和中氮處理下玉米的產量最高，玉米生長發育對氮肥的吸收存在一定的閾值，過多施用氮肥會加劇土壤乾旱和作物乾旱，水和鉀耦合效應對玉米產量影響不顯著；水分是影響玉米產量的主導因素，其次是氮效應和鉀效應。
  7. The recommended water ( by balance method ) and nitrogen ( by kns system ) practices were compared with conventional practices on spinach growth in field experiment

    摘要針對傳統水肥方式中存在的投入過量問題，採用控制耕層土壤濕度以及應用kns氮素推薦系統對菠菜的產量及水氮利用進行了研究。
  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. The experiment indicated that the lower rainfall intensity treatment, lasting longer time, caused more losses amounts of runoff nitrogen than that under the high rainfall intensity with same total rainfall amount

    試驗還表明，在降雨量相同的條件下，降雨持續時間長的小雨引起的農田氮素徑流流失量要超過降雨持續時間短的大雨。
  10. 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。
  11. These tests enable the better management of the crop ' s nitrogen requirement to prevent head sterility and loss of production when excessive amounts of nitrogen fertilizer are applied

    這些測試方法使人們能夠更好地管理作物的氮素需求，以避免過量施用氮肥帶來的稻穗不育及減產。
  12. The ability to reduce application rates through use of crn enables producers to avoid the uneconomical practice of applying fertilizer in excess of soil and crop requirements as insurance against potentially large n losses

    通過用控釋氮肥可以減少施用量，使生產者避免使用超過土壤和作物需要過多的不經濟施肥，避免氮素大量損失。
  13. Over - irrigation not only wastes water but could result in leaching of fertilizer ( primarily n ) below the root zone

    過量灌溉不僅浪費水資源而且還可能引起肥料向根區以下的淋失（主要是氮素） 。
  14. ( 4 ) soil water flow was simulated by macro model and soil nitrate transport was simulated by coupmodel. part of soil layer ' s simulated results fitted well compared with the measured values. the water percolation amount simulated with considering macro - pore was 60

    （ 4 ）用macro模型模擬水過程， coupmodel模型模擬氮素轉化過程，部分土層水、氮的模擬結果和實測值較吻合，考慮大孔隙時模擬得到土壤水的滲漏量較不考慮時高60 . 50 ，土壤硝酸鹽淋洗量占施肥量30 . 87 ，比不考慮時高。
  15. 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。
  16. Using this system, research on nox emission and burnout characters of the test facility are carried out. the results of influence on nox emission and carbon in fly ash by coal type, coal particle diameter, furnace temperature and excess air are reached through tests. then micronized coal reburning tests are processed, which show a remarkable effect results on nox reduction and burnout rate

    通過大量的試驗，得出了煤種、煤粉細度、爐膛溫度和過量空氣系數等因素對nox排放和煤粉燃燼率的影響趨勢；並在此基礎上研究了超細粉再燃對脫氮效果和燃燼性能的作用，試驗結果表明超細煤粉再燃對降低nox排放和飛灰含碳量具有明顯的效果。
  17. Soil nitrogen regime and the relationship between aboveground green phytobiomass and soil nitrogen fractions at different stocking rates in the xilin river basin, inner mongolia

    退化草地恢復過程中土壤氮素狀況以及與植被地上綠色生物量形成關系的研究
  18. The results showed that both inadequate and excessive nitrogen application accelerated the decreasing process of leaf area index ( lai ) and chlorophyll content at later growth stage, which led to earlier leaf senescence

    結果表明，氮肥用量不足或過量均加速了生長後期葉面積系數及穗葉葉綠素含量的下降進程，使葉片提早衰老，但二者作用機制不同。
  19. 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。
  20. Except inorganic nitrogen, activated phosphate, hg, pb concentrations which exceeded the grade of clean seawater in guanjinyang ' s big yellow - fin tuna cultural protection zones, other elements and sedimentary matter concentrations accorded with the standard of grade of clean seawater

    福建省官井洋大黃魚繁殖保護區水質中除無機氮、活性磷酸鹽、汞、鉛含量超過清潔海域水質標準外，其他要素和沉積物要素含量符合清潔海域標準。
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