茶树硫素营养研究现状与展望

硫是茶树必需的营养元素之一,被称为仅次于NPK的第四要素。近年来,随着传统含硫肥料、农药用量的减少,以及大气SO2污染控制的加强等,茶园缺硫日趋严重,施硫已成为当前茶树营养管理的重要内容之一。本文就近年来国内外茶树硫素研究进展,包括茶树体内硫含量、茶树对硫的吸收利用、茶园土壤硫含量及其影响因素、茶树缺硫诊断、施硫对茶叶产量和品质的影响、茶园硫素平衡与硫肥施用技术等进行了综述,并就今后的研究方向谈了粗浅的看法。

Sulphur Nutrition of Tea Plant:A Review of Present Studies and Research Prospects

Sulphur is one of the essential elements of tea plant and regarded as the fourth key element next to NPK. With the decreasing in the application of the traditional S-bearing fertilizers and pesticides, and the control of SO2 pollution in atmosphere in recent years, the S deficiency in tea plant is obviously increased. S application has being become one of the key factors in the Integrated Nutrition Management System in tea garden. This paper reviews the different aspects of S nutrition of tea, especially the S content in tea plant, the S absorption and utilization by tea plant, the availability and distribution of S in the soil and their affecting factors, the S deficiency in tea plant and its diagnosis, the effects of S application on yield and quality of tea, S balance in tea garden and S application technique. And finally the future research activities on S nutrition in tea are outlined.