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.
Vertical variations of three nitrogen in water column of South China Sea and their relations to environmental factors
南海水体三项无机氮含量的垂直变化特征及与其他环境要素的相关性
3.
The Application of Singlechip in the Anti-damage Testing Technology for Crop on Nitrogenous Content;
单片机在作物含氮量无损测试技术中的应用
4.
Inorganic Nitrogen and Available Phosphorus Concentrations in the Soils of Five Forests at Dinghushan,China
鼎湖山5种森林土壤的无机氮和有效磷含量
5.
Effect of Ratio of Organic to Inorganic Nitrogen on the Yield,Nitrate Content and V_C Content of Pakchoi
有机无机氮肥比例对小白菜产量和硝酸盐、V_C含量的影响
6.
Effects of Combined Application of Organic and Inorganic Fertilizers on Soil Ammonia Volatilization and Nitrate Accumulation in Winter Wheat Field;
有机无机肥料配施对麦田土壤氨挥发和硝态氮含量的影响
7.
Computation of TRN and labile phosphate distribution in Jiulongjiang Estuary
厦门九龙江河口区无机氮和活性磷酸盐含量分布的计算
8.
Effect of exogenous NO on the growth and inorganic ion content of Festuca arundinacea seedlings under Pb~(2+) stress
外源一氧化氮对铅胁迫下高羊茅生长和无机离子含量的影响
9.
given nitrogen rich organic matter in soil
在土壤中施含氮量高的有机质
10.
Research on Soilless Cultivation of Paddy Rice and Measurement of Moisture and Nitrogen Contents in Leaves
水稻无土栽培及叶片水氮含量测量研究
11.
Effect of Combined Application of Organic and Inorganic Fertilizer on Soil Microbial Biomass Nitrogen and Nitrogen Cycle;
有机无机氮源配合施用对土壤微生物生物量氮及氮素循环的影响
12.
Effect of Combined Use of Organic and Inorganic Nitrogen Fertilizer on Rice Yield and Nitrogen Use Efficiency
有机氮部分替代无机氮对水稻产量和氮素利用率的影响
13.
Discussion of Treating Organic Waste Water High in Salinity and Ammonia Nitrogen;
含高盐量、高氨氮量有机废水处理工艺探讨
14.
Nutrients Exchange at the Sediment-water Interface along the Tidal Flat of Yangtze Estuary;
长江口潮滩无机氮界面交换通量研究
15.
Contents of Active Organic Carbon, Nitrogen and Its Relationship with Nitrogen Mineralization of Soil on the Loess Plateau;
黄土区几种土壤中活性有机碳、氮含量及其与土壤氮素矿化的关系
16.
Contents and Changes of Soluble Organic Nitrogen in the Different Soils;
土壤中可溶性有机氮含量及影响因素研究
17.
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
18.
Contents and Characteristics of Soluble Organic Carbon, Nitrogen in the Arable Soil
农田土壤中可溶性有机碳、氮的含量及特性研究