1) Nitrate-N distribution
NO3-N分布
2) NO-3-N concentration distribution
NO3-N浓度分布
1.
Based on lab experiment,NO-3-N concentration distribution characteristics under single-line interference film hole infiltration with different fertilizer solution concentration were studied.
建立了肥液交汇入渗湿润体膜孔中心和交汇界面中心垂向土壤NO3--N浓度分布特征与湿润体深度之间的分段函数模型,经实测资料验证表明,该模型精度较高。
3) NO-3-N
NO3-N
1.
Five years average concentrations of NO-3-N,NH+4-N,and Total Inorganic Nitrogen(TIN) in wet depositions in Huizhou City are 0.
结果表明,近5年惠州市湿沉降平均NO3--N含量为0。
2.
Effects of combining application of nitrogenous,phosphorus and potassium fertilizers on the cumulation of NH+4-N and NO-3-N in soil profile,the yield and quality of flue-cured tobacco were studied according to the field experiment.
通过大田试验研究了不同氮磷钾配施对NH4+-N和NO3--N在植烟土壤中累积及烤烟产量品质的影响。
3.
Among the DN concentration of NH+4-N was lower than that of NO-3-N in general,and the former.
结果表明:稻田氮素径流损失的主要形态是溶解态氮(DN),DN中的NH4+-N浓度基本低于NO3--N浓度,NH4+-N浓度受施氮水平的影响,而NO3--N浓度不受施氮水平的影响。
4) Nitrate
[英]['naɪtreɪt] [美]['naɪtret]
NO3-N
1.
The effects of ammonia,nitrate and pH on the growth of Salvinia natans L.
)为研究对象,在Hoagland培养液的基础上模拟生活污水中NH4+-N和NO3--N的浓度以及pH,研究了培养条件对槐叶萍生长的影响。
5) NO~-_3-N
NO3-N
1.
This paper studied the removal effects of NH~-_4-N,NO~-_3-N,TN and TP by the integrated subsurface flow-upward vertical flow constructed wetland process.
研究了潜流-上行垂直流复合人工湿地工艺对NH4+-N、NO3--N、TN和TP的去除效果。
2.
Considering the target yield level,FW 84 t/ha,in spring,the rate of N supply(soil NO~-_3-N in root zone + N through irrigated water + sidedressed N) were N 300 kg/ha of e.
试验设计为:当春季目标产量为84 t/hm2时,在第一、二、三穗果膨大期每次追肥时采用N 300 kg/hm2的氮素供应目标值(0—30 cm土层NO3--N+灌溉水带入氮素+追施化肥氮素),之后每次追肥采用N 200 kg/hm2的氮素供应目标值;当秋季目标产量为75 t/hm2时,在第一、二、三、四穗果膨大期每次追肥时采用N 200 kg/hm2的氮素供应目标值,之后每次追肥采用N250 kg/hm2的氮素供应目标值。
3.
5) and N forms(NH~+_4N,NO~-_3-N) on arenchyma formation in roots of five rice genotypes.
以NO3--N为单一氮源时,近中性条件(pH 6。
6) nitric nitrogen
NO3-N
1.
The effects of different cropping systems on content of nitric nitrogen in soils and vegetable were studied.
研究了不同种植制度对农田土壤和蔬菜NO3--N含量的影响。
补充资料：2号熔剂(fluxing agent No.2)
分子式：
CAS号：
性质：又称2号熔剂(fluxing agent No.2)。黄色或橙黄色固体。是氯化钾、氯化镁、氯化钡等的混合物。极易潮解。有毒!由氯化钾、氯化镁、氯化钡、氯化钙等固体原料按一定配比混合，加入电炉加热至650℃左右，加入石油焦除去硫酸根，经约1h后，升温至700℃熔融，经冷却，粉碎制得。用作铝镁冶金的保护剂和精炼剂。还用于国防工业。
CAS号：
性质：又称2号熔剂(fluxing agent No.2)。黄色或橙黄色固体。是氯化钾、氯化镁、氯化钡等的混合物。极易潮解。有毒!由氯化钾、氯化镁、氯化钡、氯化钙等固体原料按一定配比混合，加入电炉加热至650℃左右，加入石油焦除去硫酸根，经约1h后，升温至700℃熔融，经冷却，粉碎制得。用作铝镁冶金的保护剂和精炼剂。还用于国防工业。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条