玻璃基质型缓释复合肥养分释放特征  

Nutrient-release Characteristics of Controlled-release Compound Glass Fertilizer

作　　者：张玉树[1] 丁洪[1] 郑祥洲[1] 秦胜金[1] 

机构地区：[1]福建省农业科学院土壤肥料研究所,福建福州350013

出　　处：《安徽农业科学》2011年第3期1434-1435,共2页Journal of Anhui Agricultural Sciences

基　　金：福建省科技计划项目(2007I0010);福建省财政专项福建省农业科学院科技创新团队建设基金项目(STIF-Y01)

摘　　要：[目的]研究玻璃基质型缓释复合肥料的养分释放率。[方法]以玻璃基质材料和矿质肥料为主要原料,制备了玻璃基质型缓释复合肥料。在实验室培养条件下,对比研究了玻璃基质型缓释复合肥料的养分释放率。[结果]与普通肥料相比,玻璃基质型缓释复合肥料极显著地降低了氮和钾的释放率(P<0.01)。但玻璃基质型缓释复合肥料中的磷释放率很低,与钙镁磷没有显著差别。[结论]玻璃基质型缓释复合肥料对氮、钾具有较好的控释效果。[Objective]The aim was to study nutrient-release rate of glass fertilizers.[Method]With the glasses and mineral fertilizers as the main material,the controlled-release compound glass fertilizers were prepared,and their nutrient-release rates were comparatively studied under the laboratory experimental conditions.[Result]Compared with common fertilizers,the glass fertilizers could significantly reduce the release rate of nitrogen and potassium（P0.01）.But its release rate of phosphorus was very low,which wasn＇t significantly different from that of the calcium,magnesium and phosphate.[Conclusion]The glass fertilizer could better control the release of nitrogen and potassium.

关 键 词：玻璃肥料 缓释肥料 养分释放 

分 类 号：S143[农业科学—肥料学]