不同理化处理对钾长石中钾的促释效果研究  

The Effect of Different Physicochemical Treatments on Promoted-release of Potassium in Feldspar

作　　者：王俊[1] 刘辉[1] 张俊涛[2] 廖宗文[1] 毛小云[1] 

机构地区：[1]华南农业大学资源与环境学院,广东广州510642 [2]广州市园林科学研究所,广东广州510170

出　　处：《土壤通报》2012年第2期451-454,共4页Chinese Journal of Soil Science

基　　金：国家科技支撑计划复合(混)肥养分高效优化技术研究项目(2006BAD10B03);国家自然科学基金(编号41071162);农业成果转化资金项目(编号2009GB2E000278);广东省农业攻关项目(2010B020311007)

摘　　要：研究了不同活化剂、活化水的理化处理手段对钾长石中钾的促释效果。结果表明：活化水、不同烘干温度、不同活化剂及其用量对钾长石的活化效果均有明显影响;活化水较普通水的促释效果提高12%~21%,NaCl等活化剂与钾长石中的钾发生离子替换作用,促进钾释放,增幅达41%~76%,而活化剂QN和linN不同用量及不同烘干温度条件下,能够大大促进钾释放,增幅达2.8~4.8倍;促释技术为难溶性钾矿物的开发利用提供了一条新的利用途径。The purpose of this paper is to study the effect of different Physicochemical treatments,such as activators,activated water,on promoted-release of potassium in feldspar.The result showed that activated water,different temperature,different kinds of activators and dosage could obviously activate feldspar.Compared to ordinary water,the effect of activated water increased 12%-21%.Activators like NaCl,which can substitute for K＋ in feldspar,promoted potassium-release from 41% to 76%.Different dosage of activators QN and LinN under different temperature also had exerted great influence in promoting the release of potassium in feldspar,with increments of 2.8 to 4.8 times.This promoted-release technology provides a new way for using insoluble potassium minerals.

关 键 词：活化剂 活化水 促释 钾长石 

分 类 号：S143.3[农业科学—肥料学]