1.
Study of Nitrogen Fertilization on Summer Maize Based on Soil Nitrate Nitrogen Test
基于土壤硝态氮测试的夏玉米氮肥施用研究
2.
Fertilizers--Determination of nitrate nitrogen content--Nitron gravimetric method
GB/T3597-1983肥料中硝态氮含量的测定氮试剂重量法
3.
Nitrite Accumulation During the Denitration Process in SBR at Low Temperature
低温SBR反硝化过程亚硝态氮积累试验研究
4.
Acute Toxicity of Ammonia and Nitrite to Adult Siniperca chuatsi
分子氨和亚硝态氮对鳜鱼成鱼的急性毒性试验
5.
Experimental Research on Nitrogen Removal Mechanism of Simultaneous Nitrification and Denitrification by Concrete Eco-film
混凝土生态膜法同步硝化反硝化脱氮机理试验研究
6.
Study on Fast Determination Method of Nitrate Nitrogen and Nitrate Pollution Evaluate in Vegetable;
蔬菜中硝态氮速测方法及硝酸盐污染评价的研究
7.
The Study on Determination Method and Cumulative Factors of Nitrate and Nitrite in Vegetables;
蔬菜中硝态氮测定方法及累积因素的研究
8.
Soil nitrate nitrogen sensing for tea garden based on diffuse reflectance spectroscopy
基于漫反射光谱的茶园土壤硝态氮检测
9.
Test method for nitrogen-released and gas-absorbed dynamic curve of nitrogen-doped getter
GB/T9506.5-1988掺氮吸气剂释氮吸气动态曲线测试方法
10.
determination of nitrate nitrogen,ammonium nitrogen and total soluble nitrogen in air-dry soils using calcium chloride solution as extractant
使用氯化钙溶液作萃取剂测定干空气中的硝态氮、氮铵和总溶解氮含量
11.
Some commercial laboratories use periodic nitrate tests as guides.
许多商业性的试验室已应用定期的硝态氮分析作为指导。
12.
Simultaneous determination of the total nitrogen,ammonium-nitrogen,nitrite-nitrogen,and nitrate-nitrogen in wastewater by continuous fluxion analysis
连续流动分析法同时测定污水中总氮、氨氮、亚硝酸盐氮、硝酸盐氮
13.
Feasibility of NO_3~--N Determination by Dual Wavelength Spectrophotometric Method
双波长分光光度法测定土壤硝态氮的可行性研究
14.
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
15.
Molecular Regulation for Uptake and Utilization of Ammonium and Nitrate in Plant
植物吸收利用铵态氮和硝态氮的分子调控
16.
The valence of cation combined with nitrate had basically no influence on the nitrate vertical transport.
与硝态氮结合的阳离子价数对硝态氮的垂直运移没有影响。
17.
Study on Biological Nitrous Nitrifying and Autotrophic Denitrifying of Nitric Wastewater;
含氮废水生物亚硝化与自养反亚硝化试验研究
18.
Study on the OGO Process for Simultaneous Nitrification and Denitrification;
OGO反应系统同时硝化反硝化脱氮试验研究