论文部分内容阅读
完全不渗透膜(TIF膜)对熏蒸剂具有很好的阻隔性,但对熏蒸剂防治土传病虫害的影响还不明确。测定了TIF膜对二甲基二硫、棉隆及1,3-二氯丙烯防治黄瓜土传病害、黄瓜长势、产量及收入的影响,结果表明,在熏蒸剂低用量时,覆盖TIF膜相对PE膜能显著提高熏蒸剂对土壤根结线虫(Meloidogyne spp.)、疫霉菌(Phytophthora spp.)和镰刀菌(Fusarium spp.)的防治效果;并且熏蒸剂低用量时覆盖TIF膜后的产量与熏蒸剂高剂量时覆盖PE膜的产量无显著差异。应用TIF膜可以显著降低熏蒸剂用量,且不影响防治效果,同时也降低了熏蒸剂挥发对施药人员造成的危害,所以TIF膜是有前景的土壤消毒专用膜。
Completely impermeable membrane (TIF membrane) has a good barrier to fumigant, but the impact of fumigant on soil-borne diseases and pests is not clear. The effects of TIF membrane on the soil-borne disease, cucumber growth, yield and income of cucumber against dimethyl dithiosulfate, cotton bollworm and 1,3-dichloropropene were measured. The results showed that in the low dosage of fumigant, PE film can significantly improve the control effect of fumigant on Meloidogyne spp., Phytophthora spp. And Fusarium spp., And the effect of fumigant on TIF film after low dosage There was no significant difference in the yield of PE film covering high doses of fumigant. Application of TIF membrane can significantly reduce the amount of fumigant, and does not affect the control effect, but also reduces the risk of fumigant volatile pesticide applicators, so TIF membrane is a promising soil disinfection special membrane.