摘要
钾是茶树必需的大量营养元素之一,在茶树生长过程中起着重要作用。从钾在茶树体内的生理功能、茶树缺钾与营养诊断、钾对茶叶产量和品质的影响、茶园土壤中的钾概况及茶园钾肥的施用等方面详细介绍了茶树钾素营养研究进展,并建议今后应加强施用钾肥后土壤钾库的动态变化、钾与中微量元素配施效果以及如何合理施用钾肥以提高钾肥利用率,维持土壤钾素平衡等方面的研究。
Potassium is one of essential macronutrients required by tea tree. It plays a vital role in growth of tea tree. In this paper, a review on the research progress of potassium in tea tree was made, which included physiological function of potassium in tea tree, potassium deficiency and nutrition diagnosis, effects of potassium fertilizer on the yield and quality of tea, potassium condition in tea-grown soil and application of potassium fertilizer, etc. Some suggestions such as the dynamic equilibrium of potassium pool after the application of potassium fertilizer, effect of potassium and middle or micronutrients combined application and how to apply potassium fertilizer to improve the potassium usage efficiency and maintain potassium balance in soil were put forward for the further study.
出处
《中国农学通报》
CSCD
2005年第1期175-177,共3页
Chinese Agricultural Science Bulletin
基金
国家科技部资助项目(No.2002BA516A17-05)Dept.of Agricultural Science
Potassium Commercial Association
Azote
France资助项目部分内容。
