钾素循环及其农业利用  

Potassium Recycle and Its Utilization in Agriculture

作　　者：陈烨[1] 连宾[2] 

机构地区：[1]贵州大学化学与化工学院,贵州贵阳550003 [2]中国科学院地球化学研究所环境地球化学国家重点实验室,贵州贵阳550002

出　　处：《安徽农业科学》2009年第25期12087-12090,共4页Journal of Anhui Agricultural Sciences

基　　金：国家高技术研究发展项目863课题(项目号2008AA06Z108)

摘　　要：钾素是农作物生长的三大要素之一,钾素缺乏严重影响我国农业生产的发展。贵州喀斯特地区拥有储量丰富的钾矿资源,但至今没有得到有效利用。针对贵州农业生产中钾肥资源短缺的问题,通过对钾元素地球化学循环、土壤矿物钾的存在状态及其释放特点、贵州农业生产中钾素收支状况等方面的分析,提出开发贵州钾矿资源的紧迫性和必要性,通过对比分析含钾矿物的三种利用途径,强调生物法在矿物钾开发中的潜力和应用前景。Potassium is one of the three essential factors in crop growing, and lack of potassium would have a strong impact on the growth of agriculture production. The abundant potassium ore resource in karst region in Guizhou has not been efficiently utilized yet. Aiming at the scarcity of potassium fertilizer in agriculture production in Guizhou, the impendency and necessity of developing the potassium ore resource in Guizhou were pointed out by analyzing geochemical recycling, existing state, releasing feature of mineral potassium in soil, and coming and outgoing position of potassium in agriculture production in Guizhou. Based on it, the development potential and application foreground of biological technique in mineral potassium production were emphasized by comparative analysis of three utilization paths of potassium-containing mineral in karst region in Guizhou.

关 键 词：喀斯特地区 地球化学循环 矿物钾 模式 

分 类 号：S158.3[农业科学—土壤学]