天然沸石对土壤及养分有效性的影响

天然沸石对土壤及养分有效性的影响

李长洪，李华兴，张新明

（华南农业大学资源环境学院，广州 510642）

摘要：综述了沸石的理化性质。沸石具有独特格架状结构；土壤施用沸石后，可以提高土壤保肥能力，活化土壤中难溶性磷，改良土壤结构。沸石有较强的交换吸附能力；沸石与肥料混合使用，能提高肥料利用率。

关键词：沸石；土壤性质；土壤肥力

中图分类号：P578.974；S156        文献标识码：A

Effects of Natural Zeolite on Soil Properties and Nutrient Efficiency

LI Chang-hong, LI Hua-xing, ZHANG Xin-ming

( College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China )

Abstract: Zeolites have natural framework of alumino-silicate minerals with high cation-exchange capacity. In this paper, the physical and chemical properties and the effects of natural zeolites on soil chemical and physical characteristics were reviewed. Zeolites application can increase fertilizer use efficiency and nutrient preserving capability of soil. The adsorption feature of zeolites can strengthen soil crumb structure, increase the cation exchange capacity and base saturation percentage.

Key words: zeolite; soil properties; nutrient efficiency