蔬菜中硝酸盐累积机制及控制方法研究

来源 :安徽农业科学 | 被引量 : 0次 | 上传用户:tk6014
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
阐述了硝酸盐在蔬菜中的分布情况及硝酸盐的食用卫生标准、累积机制、影响因子和控制方法.
其他文献
Nitrification acts as a key process in determining fertilizer use efficiency by crops as well as nitrogen losses from soils. Metal dithiocarbamates in addition
In the paper the simplified three-dimensional turbulent diffusion equation of the suspended load is deduced by the power series method. The formula on the trans
The united membrane biological reactor(UMBR) was studied for the treatment of some simulate and municipal wastewater . The removal efficiency for COD and turbid
Two different kinds of black liquor from the papermaking industry were treated by acidification and reuse. The experimental parameters and conditions were discu
First a report about present status of circulating fluidized bed reactors for coal and multi-fuel combustion in power plants is given. Thereafter the developmen
By means of both a theory for pressure-induced shifts (PS) of energy spectra and a theory for shifts of R2 line, and U band of GSGG:Cr3+ at 300 K have been calc
Two charge-transfer complexes of 2a and 2b of Keggin type were synthesized and characterized by elemental analysis, IR spectra, UV spectra, XRD, TG-DSC; and wer
从某污水厂活性污泥中分离、筛选获得了一组高效的自养氨氧化混合菌群.通过批式培养,结果表明,其最适温度和pH分别为30 ℃和7.0~7.5;溶解氧浓度对氨氧化影响较小;0~1.0 %的盐度
在多喷嘴对置式气化炉热模实验平台上,利用内窥式工业电视、高温热偶和质谱仪等,研究了酒精发酵废液煤浆的气化特性.结果表明,酒精废液煤浆所形成的撞击火焰结构稳定,气化效
缺血性心脏病(IHD)是一种在世界范围内高发的疾病,近年来其治疗研究的进展突飞猛进,其中应用干细胞治疗该病的报道越来越多,而如何提高该治疗手段的疗效成为许多医疗工作者关