关键词: TIF膜, 二甲基二硫, 1,3-二氯丙烯, 棉隆, 防效

Abstract: Totally impermeable film (TIF) has good barrier properties for fumigants, but its impacts on the prevention of soil-borne pest were uncleared. Field test method was adopted to determine the effect of TIF on dimethyl disulfide, dazomet and 1,3-dichloropropene for cucumber soil-borne diseases, cucumber growth vigor, yield and farmer income. The results indicated that compared with PE, covering TIF could significantly improve the control effects of fumigants for soil root-knot nematode (Meloidogyne spp.), Phytophthora (Phytophthora spp.) and Fusarium (Fusarium spp.); and there were no significant differences on cucumber yields  between TIF at low fumigant usage and PE at high fumigant usage. Application of TIF could significantly reduce the fumigant dosage, yet does not affect the control effect. Additionally, it could also reduce the hazard of fumigant volatile on persons who are spraying fumigant. Therefore, TIF is a promising and special film for soil disinfection.

Key words: totally impermeable film, dimethyl disulfide, 1,3-dichloropropene, dazomet, control efficacy