1.
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。
2.
Comparison of Determining the Soil Total Nitrogen Concentration with a Continuous Flow Injection Analyzer and Kjeldahl Method
流动注射法与凯氏定氮法测定土壤全氮的比较
3.
Organic carbon and total nitrogen in bed load had enrichment phenomenon.
推移质中有机碳和全氮均有富集现象。
4.
Hierarchical Bayesian model for predicting the soil nitrogen of forest
多水平贝叶斯模型预测森林土壤全氮
5.
Effects of different land use types on accumulation of total and alkali-hydrolyzable nitrogen in soil vinyl house
不同土地利用类型对土壤全氮与碱解氮累积的影响
6.
Seasonal change characteristics of alkaline hydrolysis nitrogen and total nitrogen in typical Calamagrostis angustifolia wetland soils of Sanjiang Plain
三江平原小叶章湿地土壤中碱解氮和全氮含量的季节变化特征
7.
Effects of Conservation Tillage on the SOC、TN、SMBC and SMBN in Two Sequence Rotation Systems with Spring Wheat and Pea
保护性耕作对麦-豆轮作土壤有机碳全氮及微生物量碳氮的影响
8.
Topdressing nitrogen treatment had no obvious effect to total nitrogen in soil, but it had a stronger effect to alkalined-nitrogen.
追氮处理对土壤全氮没有明显的影响，但对土壤大麦碱解氮的影响比较大。
9.
Comparison of the Kjeldahl Method and the Dumas Method for Total Nitrogen Determination in Grasses
用凯氏法和杜马斯法测定植物样品中的全氮
10.
Rapid Detection of Total Nitrogen Content in Fresh Tea Leaves Based on Spectral Analysis;
基于光谱分析的茶鲜叶全氮含量快速检测技术
11.
Content and Distribution Characteristics of Soil Organic Carbon and Total Nitrogen of Grassl and in Yunwu Mountain
云雾山草地土壤有机碳全氮含量与分布特征
12.
Study on the N-element Nutrient of Red Globe Grape and Its Nitrogen Fertilization
全球红葡萄氮素营养及氮肥施用效果研究
13.
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
14.
Cultivation and Nitrogen Removal Characteristics of Deammonifition Granules
全程自养脱氮污泥颗粒化及其脱氮性能的研究
15.
Thermal Safety of 1,3,3-Trinitroazetidine (TNAZ)
1,3,3-三硝基氮杂环丁烷的热安全性
16.
THE SUMMARY OF 3414 INCOMPLETE TEST ABOUT THE EFFICIENCY OF N,P,K TO RICE
水稻氮、磷、钾肥效“3414”不完全试验初探
17.
Aircraft NO2 emissions are considered to be about 2% of the total world NO2 emissions.
飞机排放出的氧化氮约占全球氧化氮排放量的2%。
18.
Nitrogen protection: Apply nitrogen to detect the oxygen amount contained in the machine online ensuring the safe operation.
氮气保护系统：采用氮气保护以保证机器在安全的环境下运行。