摘要
研究了18 m跨度平房仓磷化氢横向环流熏蒸系统设计方案和横向环流熏蒸技术在稻谷储藏中的应用工艺。粮堆内部磷化氢浓度检测结果表明,在磷化氢横向环流时粮堆内各竖直截面和水平层面磷化氢浓度分布均匀,变化趋势一致,没有熏蒸死角。与传统整仓熏蒸相比,采用横向环流熏蒸技术熏蒸粮堆时,磷化氢浓度均匀,熏蒸时间短,能够快速达到杀虫浓度;且覆膜密闭,能延长磷化氢浓度的保持时间,有效降低磷化氢用药量。
The phosphine transverse circumfluent fumigation system for paddy warehouse （with span of 18 m） was designed and the application of the technology in paddy storage was studied. The concentra- tion of phosphine in the grain bulk and the ventilation ducts was detected during the fumigation. The re- suits showed that the concentration of phosphine in the vertical and horizontal cross sections of the grain bulk distributed evenly. Compared with the traditional fumigation in whole warehouse, the concentration of phosphine distributed evenly, and needed less time to reach to the insecticidal concentration by trans- verse ventilation. The concentration of phosphine could maintain longer in the film sealed grain bulk, which decreased phosphine dosage efficiently.
出处
《粮油食品科技》
2015年第B03期64-69,共6页
Science and Technology of Cereals,Oils and Foods
基金
粮食公益性行业科研专项经费项目(201313001-06)
关键词
平房仓
稻谷
磷化氢
横向环流熏蒸
warehouse
paddy
phosphine
transverse circumfluent fumigation
