摘要
[Objective] The paper was to explore the optimum dosage and application pattern of Trichoderma harzianum for controlling Potato Verticillium wilt. [ Method] Two trials, sowing seed tubers in bacterial manure, sowing seed tubers in bacterial manure ＋ root irrigation after seedling emergence, were conducted in the paper. [Result] T.harzianum could effectively control potato early dying and promote potato growth, thereby increasing potato yield. The control effects of sowing tuber in 300 times of bacterial manure ＋ root irrigation with 300 times of conidia suspension after seedling emergence were ideal ; the highest control effect and the highest saved yield loss were 72.60% and 33.33%, respectively. [ Conclusion] The paper provides reference for field application of T. harzianum.
[Objective] The paper was to explore the optimum dosage and application pattern of Trichoderma harzianum for controlling Potato Verticillium wilt. [ Method] Two trials, sowing seed tubers in bacterial manure, sowing seed tubers in bacterial manure ＋ root irrigation after seedling emergence, were conducted in the paper. [Result] T.harzianum could effectively control potato early dying and promote potato growth, thereby increasing potato yield. The control effects of sowing tuber in 300 times of bacterial manure ＋ root irrigation with 300 times of conidia suspension after seedling emergence were ideal ; the highest control effect and the highest saved yield loss were 72.60% and 33.33%, respectively. [ Conclusion] The paper provides reference for field application of T. harzianum.
基金
Supported by Science and Technology Project of Guizhou Province[QKHN G(2007)4007]
Project of Guizhou Academy of Agricultural Sciences[QNKH(Key)08017]
