1.
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
2.
Influences of Additional Nitragon Manuring in the Middle and Late Period of Wheat Growth on Leaf Nitrogen Content, Grain Yield and Grain Protein Content
中后期追氮对小麦叶片氮含量及籽粒产量、蛋白质含量的影响
3.
Genetic Analysis for Soluble Sugar Content, Total Nitrogen Content and Ratio of Sugar to Nitrogen of Rice(Oryza Sativa.L.) Across Environments;
不同环境下稻米可溶性糖含量、总氮含量和糖氮比的遗传研究
4.
Maize straw returning to the field can increase the soil total nitrogen and inorganic nitrogen content.
秸秆还田增加了土壤全氮和无机氮含量。
5.
Quantification of atmospheric nitrogen deposition at Guiyang area based on nitrogen concentration of epilithic mosses
基于石生藓类氮含量的贵阳地区大气氮沉降
6.
Influence of nitriding modes and ammonia on nitrogen content of oriented silicon steel
渗氮方式及氨气对取向硅钢氮含量的影响
7.
Content of nitrogen and property of deposited metal of self-shielded fluxed-cored wires
氮强化自保护药芯焊丝氮含量及性能分析
8.
Discussion for Determination of Nitrogen Contend in ABS Resin by Full Automatic Azotometer
应用全自动定氮仪测定ABS树脂氮含量的探讨
9.
Synthesis of Diamond with High Nitrogen Concentration Using Pure Iron Powder Catalyst with Additive NaN3
纯铁触媒添加叠氮化钠合成高氮含量金刚石
10.
Nitrogen measurement in infantile zhili syrup by Kjeldah method
凯氏定氮法测定小儿智力糖浆中总氮含量
11.
Effect of Different Nitrogen Fertilization Rate and Irrigation Rate on Nitrate Nitrogen Concentration in Wheat-Maize Interplanting System
施氮量和灌溉量对小麦/玉米间作土壤硝态氮含量的影响
12.
Raw natural rubber--Determination of nitrogen
GB/T8088-1987天然生胶氮含量测定法
13.
crude petroleum and petroleum products-determination of nitrogen content
原油及石油产品中氮含量测定方法
14.
determination of the mass concentration of nitrogen oxides (chemiluminescence method)
氧化氮含量浓度的测定-化学发光法
15.
methods for determination of oxides of nitrogen in flue gases
废气中氧化氮含量的测定
16.
Test methods for nitrogen content of nitrogen-doped getter
GB/T6625-1986掺氮吸气剂含氮量测试方法
17.
④Ample N P K, ⑤ High heavy mental;
④含有丰富的氮磷钾； ⑤重金属含量较高；
18.
Effect of Nitrogen Application Amount on Nitrogen Content in Stem and Leaf of Two Maize Varieties with Different Yield Levels
氮肥对不同产量水平的玉米茎叶含氮量的影响