水溶肥中水不溶物含量对滴灌施肥系统过滤器堵塞的影响  

Effects of water-insoluble substance content in water-soluble fertilizers on the filter clogging in fertigation system

作　　者：涂攀峰[1] 邓兰生[1] 龚林[1] 胡克纬[1] 叶倩倩[1] 张承林[1] 

机构地区：[1]华南农业大学资源环境学院,广东广州510642

出　　处：《磷肥与复肥》2012年第1期72-73,共2页Phosphate & Compound Fertilizer

基　　金：广东省教育部产学研结合项目(2009B090300332);广东省科技计划项目(2010A020506022);农业部公益性行业(农业)科研专项经费项目(201103003)资助

摘　　要：研究了不同水不溶物含量的水溶性肥料对滴灌施肥系统过滤器堵塞的影响。结果表明,以膨润土为填充料的供试肥料(膨润土肥料)和凹凸棒土为填充料的供试肥料(凹凸棒土肥料),在水不溶物质量分数为2%以上时43 min内均可使过滤器两端的压力差达到0.05 MPa,并最终使过滤器完全堵塞。The effects of different water-insoluble substance in water-soluble fertilizers on the filter clogging in fertigation are studied. The results show that, both bentoniet fertilizer and attapulgite fertilizer, when the mass fraction of water-insoluble substance in water-soluble fertilizers is above 2%, the pressure difference between two sides of filter is reached 0.05 MPa in the 43 min, finally the filter is completely clogged.

关 键 词：水不溶物 水溶性肥料 滴灌 过滤器 堵塞 

分 类 号：S224.2[农业科学—农业机械化工程]