nitrat相关论文
The effects of atmospheres and precursors on MnOx/TiO2 catalysts were studied,which were prepared by the impregnation me......
【正】 Canszhou Dahlia Co.,Ltd.(SH:600230).listed in Shanghai Securities Exchange on April 6th,2001,is a leading TDI (to......
Rhizosphere Aeration Improves Nitrogen Transformation in Soil, and Nitrogen Absorption and Accumulat
Two rice cultivars (Xiushui 09 and Chunyou 84) were used to evaluate the effects of various soil oxygen (O2) conditions ......
Using XRD,TEM and VSM methods,the phase,morphology and magnetic property of iron hydroxide oxide(FeOOH)which has been pr......
Cerium oxide film formed on the nickel electrode at 453 K in LiNO3-KNO3 molten salts. The molten salt back- ground and t......
This paper discusses the basic principles and characteristics of the effect of ultrasonic extraction of chemical substan......
Magnesium aluminium hydrotalcite (Mg-Al-HT) with molar ratio of Mg-to-Al of 3 to l was prepared and characterized by X-......
ZnO nanorods were synthesized using the sol-gel method, and the effects of annealing temperature and Ce doping on the mo......
Pot experiments were carried out to study the effect of nitrogen application on winter wheat under different status of s......
Chaenomeles sinensis spot leaf cast is one of the most serious diseases in production. The biological characteristics of......
Soil Carbon and Nitrogen in Response to Perennial Bioenergy Grass, Cover Crop and Nitrogen Fertiliza
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生......
以环辛二烯为原料,经环氧化、胺化成环、硝化等合成了一种新型含能材料9-硝基-9-氮杂双环[3.3.1]壬烷-2,6-二醇二硝酸酯,采用NMR、......
通过生物调理剂盆栽、大棚小区试验表明：生物调理剂对青菜、茄子品质有明显影响，施用处理比对照青菜、茄子硝酸盐含量降低30％以上，茄子......
【目的】研究不同铵硝比对烤烟生长的影响,为优质烤烟生产中肥料的合理施用提供参考。【方法】采用田间单因素试验的方法,设N1（铵硝......
利用查表法简化无机盐热力学平衡模式ISORROPIA，对温度、相对湿度、总氨（NH3＋NH4^＋）、总氮（HNO3＋NO3^-）和总硫（H2SO4＋SO4^2-）等5个影响因子进......
以较耐盐黄瓜品种新泰密刺为试材,采用营养液栽培,研究了叶面喷施硝酸钙对盐胁迫（NaCl 65mmol.L-1）下黄瓜幼苗体内脯氨酸（Proline,Pro......
对新乡市民日常食用的主要蔬菜硝酸盐含量进行了调查。发现新乡市蔬菜硝酸盐污染普遍。其NO3^-含量依次为绿叶菜类>根菜类>瓜类>茄......
有机物料稻草、猪粪、锯木屑按0.5%、1%和2%用量施入已产生连作障碍的土壤,对连作黄瓜根系各种与养分吸收有关酶产生不同影响.盆钵......
本文介绍了采用直接电位法测定Ｃｒ（ＮＯ３）３中杂质钾含量的方法，此方法还可用于钠含量或铬盐中杂质钾含量的测定。......
取质地均一土壤上多年生的空心莲子草,测定了它不同部位含水量、硝酸还原酶活性、可溶性糖和多种无机离子如K^＋、Na^＋、Ca^2＋、Mg^2＋、......
【目的】在华北平原地区,研究前茬小麦耕层水氮调控对后茬玉米土壤深层累积NO3--N的运移及后效的影响。【方法】设置0（N0）、150 kgN.......
利用沼气发酵残余物(沼液、沼渣,以下简称沼肥)生产低硝酸盐蔬菜的可行性试验表明,与化肥相比,适量沼肥或沼肥与化肥配合施用,均可......
在醋酸、相转移催化剂聚乙二醇存在下,蒽与硝酸铈铵反应生成10＊-硝基蒽酮.聚乙二醇作为相转移催化剂,可以提高反应的选择性.最佳反......
基于NO3^-在酸性介质中被锌粉还原后，溶液紫外吸收光谱将发生显著变化的原理，建立了测定水中NO3^-浓度的还原－紫外分光光度法，该方法采......
特殊脆弱性评价是地下水硝酸盐污染区域性防治的前提.结合淮河流域水文地质条件和硝酸盐污染特点,对传统地下水特殊脆弱性模型DRAS......
Remediation of Coastal Sediments by Addition of Calcium Nitrate and Presence of Benthos in a Muddy T
This study investigated the change in denitrification rate in muddy tidal flats sediment by chemical and biological reme......
The concentrations of nitrous oxide varies between 57 and 329 nmol/dm3, saturation is 674%～4 134% in the Zhujiang River E......
通过３项田间定位试验研究表明，蔬菜生产中采用Ｎ、Ｐ、Ｋ平衡施肥，增施优质微生物肥料，微生物肥料与无机化肥、有机肥料配合等施肥技术，提高了......
We present a non-parametric hydro-geostatistical approach for mapping design nitrate hazard in groundwater. The approach......
研究了Cr^6+污染对Shun菜冬芽外部形态及过氧化物酶、硝酸还原酶活性，叶绿素、O^-2、MDA的含量等生理指标的影响，结果显示：Cr^6+对Shu......
Rhizosphere Aeration Improves Nitrogen Transformation in Soil, and Nitrogen Absorption and Accumulat
Two rice cultivars(Xiushui 09 and Chunyou 84)were used to evaluate the effects of various soil oxygen(O2)conditions on s......
