硫酰氟气体在不同品种粮堆扩散规律比较研究（网络首发、推荐阅读）

为了解硫酰氟在小麦、稻谷和大豆3种粮堆中的扩散和分布规律，通过6个实仓熏蒸的数据采集，对熏蒸气体在不同粮堆内的扩散速度、均匀性、以及衰减速度等参数进行比较分析。试验结果表明，硫酰氟气体在不同粮种中的扩散速度是大豆>稻谷>小麦；大豆粮堆最快在熏蒸后8 h后，可实现整仓气体均匀；平均气体浓度半衰期分别是大豆>小麦>稻谷；在5.0~12.7 g/m3的熏蒸药剂浓度下实现6个月无虫期的防护效果。

Research on the Diffusion Pattern of Sulfuryl Fluoride Gas in Different Grain Piles(Online First, Recommended Article)

To understand the diffusion and distribution of sulfuryl fluoride in wheat, rice and soybean piles, experiments were carried out in 6 warehouses to compare and analyze the diffusion speed, uniformity, and attenuation speed of fumigant gas in different grain piles. Data were collected in the process of fumigation. Experiment results show that the diffusion rate of sulfuryl fluoride gas in different grains is quickest in the soybean pile, followed by the rice pile and wheat pile: the soybean pile can achieve uniform gas in its warehouse as soon as 8 hours after fumigation. The average gas concentration half-life is longest in the soybean pile, shortest in the rice pile with the wheat pile stands in the middle: the fumigation concentration of 5.0~12.7 g/m3 can safeguard an insect-free environment for 6 months.