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电超滤技术在土壤养分有效度测定上的应用研究,是从本世纪七十年代兴起的.在此十五年间取得了迅速的发展,主要体现在研究工作从西欧兴起,继而推广到东欧、亚洲及非洲等地区;研究对象从磷、钾养分进而扩及到氮素乃至微量元素;研究范围从土壤中养分有效度的评价发展到环境保护领域污染性有机物中有害元素的监测;在分析技术上从恒温、恒压提取发展到变温、变压,提取时间由35分钟扩展到60分钟以及由试验研究进而在指导作物合理施肥上实际应用.1980年春在匈牙利的布达佩斯召开了第一届国际电超滤农业应用讨论会,正式提出将电超滤法应用于土壤常规分析.一九八四年春,又在奥地利的Klos-terneuberg举行了第二届电超滤农业生产应用的国际讨论会,来自联邦德国、匈牙利、波兰、印度、爱尔兰、奥地利以及南非等国的科学家发表和交流了几十篇研究报告,现仅就其中较为重要的20篇论文所提供的资料,对电超滤农业应用研究的某些最新进展作一介绍.
The research on the application of electrospray ultrafiltration (UF) in the determination of soil nutrient availability was initiated in the seventies of the 20th century, and its rapid development in the past fifteen years is mainly reflected in its rise from Western Europe and its promotion to Eastern Europe, Asia and Africa; the research object from phosphorus and potassium nutrients and then extended to nitrogen and trace elements; research scope from the evaluation of soil nutrient efficiency to the development of harmful elements in the field of environmental pollution monitoring of organic pollutants; in the analysis of technology From constant temperature and constant pressure extraction development to temperature and pressure, the extraction time from 35 minutes to 60 minutes and from the pilot study and thus guide the rational application of fertilizers on the practical application of spring 1980 spring in Budapest, Hungary held the first international electricity Ultrafiltration Symposium on Agricultural Applications, formally proposed the application of electrospray ultrafiltration in routine analysis of soils. In the spring of 1984, the second International Symposium on the Application of Ultrafiltration Agricultural Production was held in Klos-terneuberg, Austria, from Scientists from the Federal Republic of Germany, Hungary, Poland, India, Ireland, Austria and South Africa have published and exchanged dozens of studies Report, which is now only in respect of information on the more important 20 papers offered on some of the latest research progress of electric ultrafiltration agricultural applications for a description.