nitrate nitrogen

Effect of N fertilizer rate on soil nitrate nitrogen accumulation

不同施氮量对土壤NO3~&N累积的影响

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

Effect of Irrigation and Precipitation on Soil Nitrate Nitrogen Accumulation

灌溉与降水对土壤NO3~&N累积的影响

The final reduction product of nitrate nitrogen is ammonia nitrogen .

硝酸盐氮的最终还原产物为氨氮。

Influences of Cropping System on Soil Nitrate Nitrogen and Tobacco Nitride

种植制度对土壤硝态氮及烟叶氮化物的影响

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

Nitrate Nitrogen Leaching and its Affecting Factors under Main Soil Types of Chongqing

重庆市主要土壤类型硝态氮淋失及其影响因素

Characteristics of Soil Nitrate Nitrogen Dynamic Variations and Accumulation Under Intensive Planting

集约化种植条件下土壤硝态氮动态变化及累积特征研究

The soil nitrate nitrogen content decreased with the increasing of soil depths .

硝态氮含量随着土层深度增加而减少。

The content of nitrate nitrogen in Wei river is higher than others .

渭河流域水体硝态氮含量最高；

Nitrate Nitrogen Residue and Leaching in Dryland Soil and Influence Factors

旱地土壤硝态氮残留淋溶及影响因素研究

Determination of nitrate nitrogen by reduction method

还原法测水中硝酸盐氮

Effect of Organic Manure on Soil Nitrate Nitrogen Accumulation

有机肥对土壤NO3~&N累积的影响

Effects of different wheat cultivation methods on residual nitrate nitrogen in soil in dryland

旱地小麦不同栽培条件对土壤硝态氮残留的影响

The Vertical Distribution of Nitrate Nitrogen in the Soil under Different Fertilizer and Irrigation Conditions

不同水肥条件下硝态氮在土壤剖面中垂直分布规律研究

Determination of nitrate nitrogen with a nitrate ion & selective electrode

硝酸盐氮的离子电极测定法

Quick Measurement of Total Nitrate Nitrogen and Nitrite Nitrogen with Ultraviolet Absorption Method

硝酸盐氮、亚硝酸盐氮总量紫外吸收快速测定

Study on the Technology of Soil Nitrate Nitrogen Leaching Preventive and Control in Mushroom House

设施菜地土壤硝态氮淋溶防控技术的研究

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

Analysis on the Utilization in Measuring the Nitrate Nitrogen Content of Water by Ultraviolet Spectrophotometry

浅析紫外分光光度法在测定含硝酸盐氮水质中的应用

The inlet water nitrate nitrogen concentration affected little to outlet water COD concentration .

出水COD浓度受进水硝氮浓度的影响非常小。

Effect of New Type Fertilizers Application on Accumulation of Soil Nitrate Nitrogen in the Maize Season

新型肥料施用对玉米季土壤硝态氮累积的影响

A direct method of determining nitrate nitrogen in ground water and drinking water has been studied .

文章探讨了一种测定地表水和饮用水中硝酸盐氮的直接方法&离子色谱法。

Influence of the Nitrate Nitrogen Loading on Denitrification Efficiency in Intermittent Aeration System

间歇曝气系统中硝酸盐氮负荷对脱氮效率的影响

Everybody concerned how to decrease the nitrate nitrogen content in vegetable increasingly .

如何降低蔬菜中的硝态氮含量受到人们日益广泛的关注。

Effects of different fertilizer application countermeasures on the soil nitrate nitrogen accumulation in dryland maize

不同施肥措施对旱地玉米土壤硝态氮累积的影响

Exploration of the Determination Method of Nitrate Nitrogen using Phenol with Two Sulfonic Groups Spectrophotometry

酚二磺酸法测定硝酸盐氮有关问题的探讨

Catalytic Reduction of High-concentration Nitrate Nitrogen by Three Combined Electrodes

三种不同组合电极催化还原高浓度硝酸盐氮的研究

And nitrate nitrogen is similar to the first 16 days only a temporary rise .

与硝氮类似，仅在第16天出现暂时性上升。

Effect of Chemical Fertilizers to Content of Vitamin C and Nitrate Nitrogen on Cabbage

化肥对大白菜维生素C及硝态氮含量的影响