| 摘要: |
| 通过3年田间试验筛选出质量分数1.4％硫磺硫酸铜膏剂中硫磺硫酸铜最佳质量百分比为1：0.4。经室内毒力测定，抑制苹果树腐烂病菌Ec 50 为122.0956 μg/g，共毒系数为205.409 5，增效倍数1.051。连续两年田间重复药效试验表明，对苹果树腐烂病的防治效果为86.52％～100％，年促进病疤单侧愈伤新组织宽度6.5～18.8 mm. |
| 关键词: 1.4%硫磺硫酸铜膏剂 苹果树腐烂病 共毒系数 防治效果 |
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| 基金项目:陕西省教育厅资助项目(97JZK03) |
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| Study on preventing Vals mali with ointement of 1.4% sulphur and cupric sulphate |
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| Abstract: |
| The optimal ratio of sulphur and cupric shlphate in ointemt of 1.4% sulphur cupric shlphate paste agents is 1∶0.4 through three years test in the fields.The determination of the poison power indoor indicates:to control the Valsa mali Ec 50 122.095 6 μg/g，the coefficient power to kill bacteria is 205.409 5,the increment multiple is 1.051.The experiment of inhibition effect in two succersive years showed the inhibition rate is 86.52%-100%,and the width of the single recovered tissue is 6.5-18.8 mm in a year. |
| Key words: ointemt of 1.4% sulpher cupric shlphate Valsa mali coefficient power to kill bacteria inhibition effect |
