Screening of Chemical Control for Potato Blight

• 作者: Chen Chunyan Chen Yuzhang Liang Zhengjuan Wang Chaohai Wang Shengnan Wang Song
• 来源期刊: Plant Diseases and Pests(植物病虫害研究：英文版)
• 学科: 农学
• 关键词: 马铃薯晚疫病 化学防治 枯萎病 甲霜灵锰锌 代森锰锌 随机区组试验 控制效率 单位面积产量
• 年，卷（期）: 2015,（2）
• 页码范围: 16-18
• 页数: 3页
• 分类号: S435.32

摘要

To screen chemicals for controlling potato blight effectively,randomized block experiment was adopted,the control efficiency of five chemicals for Carbendazim,Metalaxyl,Dithane mancozeb,Curzate,Cymoxanil mancozeb was explored.The results showed that the efficiency of Metalaxyl was much better than that of other conventional chemicals in controlling potato blight,up to 70.59%;the mean control efficiency of Curzate and Cymoxanil mancozeb was 68.76% and 67.05%;the control efficiency of Carbendazim was lower,55.76%.Big and middle tuber rate,tuber weight per hole,plot yield,unit area yield of potatoes in Metalaxyl treatment were the highest,78.05%,437.24g/hole,34.0kg/21.6m2 and 15 748.61kg/hm2,49.12% higher than the control yield.The indexes of potatoes in Cymoxanil mancozeb treatment were the second highest,73.33%,385.31g/hole,32.8kg/21.6m2 and 15 192.78kg/hm2,43.86% higher than the control yield.