fixed ammonium 中文意思是什麼

fixed ammonium 解釋
銨固定
  • fixed : adj. 1. 固定的；確定的，不變的，固執的。2. 【化學】凝固的，不易揮發的。3. 〈美口〉（在經濟上）處境…的。4. 〈美俚〉（比賽等）通過作弊預先安排好結果的。
  • ammonium : n. 【化學】銨。
  1. 3. the fixing quantity of ammonium in soils tested increased with the increasing of the fixation time, and the fixation rate was the largest at the beginning several hours. the releasing amount of fixed nh / in soils tested increased with the incubation time, and the velocity of fixed - nh4 + - release was very slow

    供試土壤對外源銨離子的累計固定量隨時間的延長而迅速增加，反應以開始階段固定速率最大，由同種母質發育的酸堿度不同的土壤對銨離子的固定能力不同。
  2. Change of the fixed ammonium content in soil in different growth stage of huanghuacai was similar with available n content

    在黃花菜生育期間，土壤固定態銨與堿解氮的動態變化基本一致。
  3. The content of fixed ammonium, capacity of fixing - ammonium, available fixed ammonium, kinetics of ammonium fixation and release of fixed ammonium of chief upland cultivated soils in hunan province were studied by using the method of field investigation and sampling, laboratory incubation and analyses. the seasonal change of fixed ammonium content in soil and _ its bioavailability in different growth stage of huanghuacai by use of field plot experiment

    本文通過野外調查取樣、室內培養試驗和分析測定，研究了湖南省主要旱耕地土壤的固定態銨含量、固銨容量、有效性固定態銨含量以及土壤對銨離子的礦物固定和土壤固定態銨釋放的動力學特性，通過田間小區試驗，研究了不同施肥結構下土壤固定態銨在黃花菜生長期間的動態變化規律及其生物有效性。
  4. The release of fixed ammonium still continued at the reaction time of 42 days. ph was an affecting factor of nh4 + - fixation in soil and the category of cation was an affecting factor of fixed - nh4 + - release from soil

    供試土壤固定態銨的累計釋放量隨著時間的延長而緩慢增加，反應42天仍未達到最大值，土壤溶液中陽離子種類能影響固定態銨的釋放。
  5. In the profile of 0 ~ 40 centimeter depth, the content of fixed ammonium had no distinct change, and it increased or had no distinct change in the profile of 40 ~ 75 centimeter depth. the percentage of fixed ammonium to total n in soils steadily increased with the increasing of depth

    一般情況下，土壤剖面中的固定態銨含量在0 40cm范圍內變化不大， 40cm以下升高或無明顯變化；它占土壤全氮含量百分數則是隨剖面深度增大而增大。
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