氮素化肥 的英文怎麼說
中文拼音 [dànsùhuàbǐ]
氮素化肥
英文
nitrorgenous fertilizer-
The annual productive capacity of the major products are : 13. 8 thousand tons of melamine, 400 thousand tons of urea, 100 thousand tons of calcium carbide, 4000 tons of dicyanamide, 11 thousand tons of white carbon black, 10 thousand tons of edible liquid co2, 20 thousand tons of calcium cyanamide, 30 thousand tons of methanol, 10 thousand tons of formaldehyde, 50 thousand tons of n. p. k. compound fertilizer, 200 tons of guanidine nitrate and 500 tons dissolved acetylene. the calcium carbide is the fine quality product awarded by the state
主要產品生產裝置能力為：年產總氨28萬噸，實物尿素45萬噸三聚氰胺1 . 35萬噸精甲醇3萬噸食品二氧化碳1萬噸電石10萬噸石灰氮2萬噸雙氰胺4000噸溶解乙炔500噸甲醛5萬噸白炭黑1 . 2萬噸熱電廠裝機容量3 . 6萬千瓦，年發電3億千瓦時，供熱450萬吉焦耳機械廠年機加工量2000噸綜合廠復混肥5萬噸。On the basis of the isograms, we analyzed the variation law of yield and grain protein content with soil water content, nitrogen and p2o5,
用等值線圖描述產量和蛋白質含量的水氮和氮磷兩因素效應，分析產量和蛋白質含量變化規律及其關系，確定實現一定生產目標的水肥管理方案。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。Ammonia volatilization from paddy field and its affecting factors in zhenjiang hilly region
鎮江丘陵區稻田化肥氮的氨揮發及其影響因素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。Eng. ) 1. know the fertilizers ( the appearance, properties, physical and chemical nature which includes the organic and inorganic fertilizers ) ; 2. determining the quality ( three major elements of the fertilizers ) and quantity ( the content of the moisture, nitrogen, phosphorus, and potassium ) of chemical fertilizer ; 3. the fertilizer composition expresses and calculation of the amount of application ; 4. it is cultivated in a pot or nutrient solution to test fertilizer effects ; 5. observe plant body : besides observing one ' s own test cultivated in a pot, and another diagnose the picture is for comparing ; 6. making of the compost
中） 1 .認識肥料（包括有機、無機肥料的外觀、性狀、理化性質） ； 2 .化學肥料的定性（肥料的三要素）及定量（水分、氮、磷、鉀的含量）檢定； 3 .肥料成分表示方法及肥料施用量的計算； 4 .盆栽試驗或水耕試驗（印證報酬漸減率、麥氏理論或肥料元素缺乏徵狀，並進行農藝性狀調查） ； 5 .植體觀察：除了觀察自己的盆栽試驗以外，另備有診斷圖片以供比較； 6 .有機堆肥的製作。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。Results showed that the contents of soil organic matter, nitrogen and phosphorus in paddy fields increased year after year, under the application of chemical fertilizer combined with organic manure, even if the chemical fertilizer played a leading role in the supply of nutrient
調查結果表明，在目前有機肥與化肥相結合，養分供應以化肥為主的施肥結構下，水田土壤有機質和氮、磷含量有所增加，旱地土壤有機質和全氮含量下降，土壤磷素有積累。Results showed that the contents of soil organ ic matter, nitrogen and phosphorus in paddy fields increased year after year, unde r the application of chemical fertilizer combined with organic manure, even if t he chemical fertilizer played a leading role in the supply of nutrient
調查結果表明，在目前有機肥與化肥相結合，養分供應以化肥為主的施肥結構下，水田土壤有機質和氮、磷含量有所增加，旱地土壤有機質和全氮含量下降，土壤磷素有積累。The dynamics equations of soil water vaporizing and ammonia volatilizing hcluding the factors of water and temperature, and the dynamics - like equation of urea transforming into ammonium nitrogen in soil are founded in the paper, by taking the effect of interaction of water and temperature as subject, the dynamic change character of object studied as basis and using principle of chemical dynamic ; the empirio - equations of soil water retention curve including temperature and the empirio - equations including temperature between water potential of millet seedling leaves and soil water are founded in order to make the equation of relation between water potential and water content in soil suit the demand of temperature change much better
本文以水熱耦合效應為主題，基於研究對象的動態變化特徵，應用化學動力學原理，建立了含水、熱因子以及水熱耦合效應的土壤水分蒸發、肥料氨揮發動力學方程，以及施入土壤中的尿素轉化為銨態氮的動力學型方程；為使水勢?含水量關系式更好適應變溫條件應用的要求，建立了含溫度因子直接表徵土壤持水曲線的經驗方程，以及含溫度因子的穀苗葉水勢與土壤含水量關系經驗方程。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。( 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。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。Studying on the mechanism of nitrogen transport and transformation under the conditions of fertilization and irrigation with sewage effluent is very important for utilization of sewage effluent and fertilizer and pollution control. based on laboratory and field experiment and numerical simulation, nitrogen transport and transformation has been investigated in this dissertation
污水灌溉和施肥條件下，氮素在土壤與作物系統中遷移轉化規律的研究，對于合理利用污水資源和合理施肥，最大限度提高水分和養分的利用率，減少硝態氮淋洗風險，具有十分重要的意義。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。30 " is the project to produce 18ton / year synthetic ammonia and 30ton / year urea. the key equipment in the project are the copressor for the mixed gases of nitrogen and hydrogen and the compressor for carbon dioxide. reciprocating compressor as well as centrifugal compressor can be selected for this project. the different opinions for the selection of the compressor existed in 8medium scale fertilizer plants in which coal is used as the raw material. from the points of technology and cost, the analysis and comparison of using these two kinds of compressor were carried out. it is concluded that reciprocating pump is more appropriate
工程就是建成年生產能力達到18萬噸合成氨、 30萬噸尿素的項目，項目中的關鍵設備為氮氫氣壓縮機及二氧化碳壓縮機，壓縮機選型正介於往復式壓縮機和離心式壓縮機之間，國內各設計院在八家立項的以煤為原料的中化肥廠『 18 . 30 』工程初步設計中選何種類型的壓縮機爭論不休，本文從技術及經濟的角度對此作了分析比較，並推薦採用往復式壓縮機，以供參考。It has superimposition effect with urea, nitrogen, and can promote phosphor, potassium, and other nutrition in soil to rice, which will increase utilization rate of fertilizers
該藥劑與尿素產生疊加效應並可把原來土壤存積下來的氮、磷、鉀提供轉化給水稻吸收生長，提高肥料利用率。分享友人