銨態氮肥 的英文怎麼說
中文拼音 [ǎntàidànbǐ]
銨態氮肥
英文
ammonium nitrogen fertilizer-
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。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。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。The nh4 + - n accumulated in the upper layer of soil when the irrigation water was low ; and at the high irrigation rate, this accumulation was decreased
灌水量低時，滴灌施肥銨態氮在土壤上層明顯累積；灌水量增加后，這種累積作用減弱。The purport on determination of multi - form n ( nh4 ( superscript + ) - n 、 no3 ( superscript - ) - n 、 con - n ) in fertilizer was reviewed, and the determination methods of multi - form n in fertilizer were introduced
摘要論述了肥料中銨態氮、硝態氮、酰胺態氮和有機質氮等各種形態氮的測定意義，系統地介紹了肥料中各種形態氮的測定方法以及應用情況。( 3 ) the amount of nitrogen leached was in the decreasing order as no3 - fertilizer > urea > nh4 + - fertinzer, and the main form of n leached was the n fertilizers added. the amount of nitrogen leached from sand soil exceed in that from clay soil
（ 3 ）在滴灌施肥條件下，三種氮肥（硝態氮、銨態氮和尿素態氮）在兩種質地的土壤中的淋失量均是硝態氮肥尿素銨態氮肥，淋失的氮素主要為肥料氮。But the concentration of nh4 + decreased to the very low level in 7 - 10 days after fertilizer was applied
而田表水層中銨態氮濃度在施肥后第7 ? 10天左右均降至很低水平。分享友人