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1)  soil nitric nitrogen
土壤硝酸盐氮
2)  nitrate in soil
土壤硝酸盐
1.
NP chemical fertilizer,manure and methane all could lead to the accumulation of nitrate in soil profile.
在陕北延安研究了施肥对日光温室土壤硝酸盐分布的影响。
3)  Nitrate accumulation in soil
土壤硝酸盐累积
4)  Soil nitrate nitrogen
土壤硝态氮
1.
According designing 6 N rates(0,150,300,600,900,1200 kg/hm2),this paper studied the moving dynamic status of soil nitrate nitrogen(NO3——N) in summer maize field,and discusses the economical and environmental N rates and its theories.
通过设计不同纯氮(N)施入水平(分别为0、150、300、600、900和1200 kg/hm2共6个处理),重点研究了北方褐土区夏玉米大田土壤硝态氮(NO3--N)运移动态,并讨论了夏玉米N肥的经济环保施用量及其相关机制。
2.
Authors researched the method of soil nitrate nitrogen content determination with diffuse reflectance spectroscopy for its rapidness and accuracy.
该文研究了充分利用土壤漫反射光谱在可见-近红外波段的有效信息,研究快速准确检测土壤硝态氮含量的新方法。
3.
, greenhouse vine intensive planting base, vegetable intensive planting base, and general planting farmland, were selected as research objects and dynamic changes of soil nitrate nitrogen content under different planting patterns were studied by the experimental method of field sampling analysis.
结果表明,葡萄种植基地0—100cm各土层硝态氮含量随时间的变化波动较大,而蔬菜种植基地和常规种植农田的表层土壤硝态氮含量变化幅度大于深层土壤;3种典型种植区的土壤硝态氮含量均呈现随着土层深度的增加而逐渐减小的趋势,其中土壤硝态氮含量最大值出现在葡萄种植基地的20—40cm土层中;葡萄种植基地各土层硝态氮平均累积量均高于蔬菜种植基地和常规种植农田,大棚葡萄集约化种植基地0—100cm土层硝态氮平均累积总量高达400。
5)  Soil Nitrate
土壤硝态氮
1.
Effects of nitrogen fertilizer rate and ratio of base and topdressing on yield of wheat,content of soil nitrate and nitrogen balance;
施氮量及底追比例对小麦产量、土壤硝态氮含量和氮平衡的影响
2.
Relationship between soil nitrate,nitrogen balance and utilization in rainfed land
旱地土壤硝态氮与氮素平衡、氮肥利用的关系
6)  soil nitrate-N
土壤硝态氮
1.
Effects of nitrogen rate on nitrogen fertilizer use of winter wheat and content of soil nitrate-N under different fertility condition;
不同土壤肥力条件下施氮量对小麦氮肥利用和土壤硝态氮含量的影响
补充资料:亚硝酸盐氮
分子式:
CAS号:

性质:又称亚硝态氮或亚硝酸盐氮。指亚硝酸盐中所含的氮元素。水和土壤中的有机物分解而生成铵盐,在有氧的条件下,会转化成亚硝酸盐和硝酸盐;亚硝酸氮是总氮(或全态氮)中的组成部分之一。

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