信阳师范学院学报（自然科学版）Issue(2)：255-258,4.DOI:10.3969/j.issn.1003-0972.2014.02.023
硅藻土对肥料的控释作用研究
Features of Controlled Release of Diatomite-coated Compound Fertilizers
摘要
Abstract
The diatomite was used as wrapping reagent and tetraethyl orthosilicate as adhesive to link layers of diat-omite,and thus the compound fertilizer of diatomite coated nitrogenous,potassium and phosphate fertilizers were pre-pared in different dispersants. The characterization of functional groups of the samples were performed with Infrared spectrum. The controlled release property was tested by means of drop-leaching experiment. The results showed that the diatomite exhibited slowly releasing effect for the soluble N and K fertilizers. However,the diatomite promoted the re-lease of insoluble P fertilizer. The effect of controlled release N and K fertilizers was good with the tetraethyl orthosili-cate as binder.关键词
硅藻土/控释肥/正硅酸乙酯/黏结/包裹Key words
diatomite/controlled-release fertilizer/tetraethyl orthosilicate/bonding/costing分类
化学化工引用本文复制引用
张秀兰,栗印环,王晓晶,申盼..硅藻土对肥料的控释作用研究[J].信阳师范学院学报（自然科学版）,2014,(2):255-258,4.基金项目
河南省科技攻关项目（122102210248）；高校国家级大学生创新训练计划项目 （）
