fixed ammonium造句
例句与造句
- Change of the fixed ammonium content in soil in different growth stage of huanghuacai was similar with available n content
在黄花菜生育期间，土壤固定态铵与碱解氮的动态变化基本一致。 - 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
供试土壤固定态铵的累计释放量随着时间的延长而缓慢增加，反应42天仍未达到最大值，土壤溶液中阳离子种类能影响固定态铵的释放。 - 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
一般情况下，土壤剖面中的固定态铵含量在0 40cm范围内变化不大， 40cm以下升高或无明显变化；它占土壤全氮含量百分数则是随剖面深度增大而增大。 - 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
本文通过野外调查取样、室内培养试验和分析测定，研究了湖南省主要旱耕地土壤的固定态铵含量、固铵容量、有效性固定态铵含量以及土壤对铵离子的矿物固定和土壤固定态铵释放的动力学特性，通过田间小区试验，研究了不同施肥结构下土壤固定态铵在黄花菜生长期间的动态变化规律及其生物有效性。 - It's difficult to find fixed ammonium in a sentence. 用fixed ammonium造句挺难的