新型缓/控释肥料研究现状与展望  

Current Situation and Prospects of New Type Slow and Controlled Releaseing Fertilizers

作　　者：韩晓日[1] 

机构地区：[1]沈阳农业大学土地与环境学院,沈阳110161

出　　处：《沈阳农业大学学报》2006年第1期3-8,共6页Journal of Shenyang Agricultural University

基　　金：国家"863"计划(2001AA246021);"十五"辽宁省重大攻关项目(2001208002)

摘　　要：我国目前所施用的化肥大多是单质速效化肥,肥效期短,养分容易淋失、挥发和固定,使肥料利用率很低,其中氮肥利用率在30%￣35%,磷肥利用率10%￣15%,钾肥利用率35%￣50%。因此,开发可控制养分释放速度,一次施用能满足作物各个生长阶段养分需要,低成本,生产工艺简单且对环境友好的包膜控释专用肥料是新型肥料研究的主攻方向之一。Most traditional inorganic fertilizers are straight and quick-acting fertilizers in China. Thier fertilizer effect period is short, nutrients are often leached, volatilized and fixed. Thus it had low availability, in which the utilization coefficiency of nitrogen fertilizer was 30%～35%, phosphorus fertilizer was 10%～20%, potash fertilizer was 40%-50%. Developing slow and controlled release fertilizer with low cost, easy manufactory, single-dose application and friendly environment, eapecially coated fertilizer is thd main direction in the future.

关 键 词：新型肥料 包膜控释肥料 研究现状 发展前景 

分 类 号：S145.6[农业科学—肥料学]