土壤湿度对1,3-二氯丙烯和氯化苦在土柱中的排放及分布的相对影响

• 作 者: 乔康 姬小雪
• 机 构: 山东农业大学植保学院农药系,山东省肥城市农业局植保植检站,
• 出 处: 世界农药
• 发表日期: 2010年S1期
• 关键词: 氯化苦 排放通量 异构体 二氯丙烯

土壤熏蒸在种植前用来控制土传病害,此对于很多高附加值作物是一项重要的栽培措施。溴甲烷因为对于平流层臭氧的有害作用而被逐步淘汰,熏蒸剂1,3-二氯丙烯和氯化苦(氯化苦)成为溴甲烷很重要的替代物(Honaganahalli和Seiber,1997;Ajwa等,2002)。然而,在施用到土壤之后,1,3-二氯丙烯和氯化苦的高挥发性使之快速排放到空气中。熏

Soil fumigation is used to control soil-borne diseases prior to planting, which is an important cultivation measure for many high value-added crops. Methyl bromide is phased out because of its detrimental effect on stratospheric ozone, and fumigant 1,3-dichloropropene and chloropicrin (chloropicrin) are important substitutes for methyl bromide (Honaganahalli and Seiber, 1997; Ajwa et al., 2002 ). However, the high volatility of 1,3-dichloropropene and chloropicrin makes them quickly released into the air after application to the soil. smoke