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不同杀菌剂对甘薯茎基部腐烂病的防控试验
引用本文:何贤彪,刘也楠,刘伟明,黄立飞.不同杀菌剂对甘薯茎基部腐烂病的防控试验[J].中国农学通报,2018,34(32):125-129.
作者姓名:何贤彪  刘也楠  刘伟明  黄立飞
作者单位:台州市农业科学研究院,台州市农业科学研究院,台州科技职业学院,广东省农科院作物研究所
基金项目:浙江省农业(粮食)新品种选育重大科技专项“甘薯、山药种质筛选及新品种选育”(2016C02050-7-3);台州市农业类重点科技项目“甘薯根 茎部腐烂病害的病原菌鉴定、发生危害规律及防控技术研究”(1701ny12);国家甘薯产业技术体系资助项目“鲜食型甘薯改良岗位”(CARS-10-C-17); 广州综合试验站(CARS-11-B-05);广东省应用型科技研发重大专项“甘薯高花青苷新品种培育及产业化研究”(2016B020233003)。
摘    要:为有效防控甘薯茎基部腐烂病害,在2016 年田间试验的基础上,2017 年选用5 种杀菌剂的不同浓度或其中2 种杀菌剂混用对甘薯茎基部腐烂病进行田间防控试验。结果表明,以50%多菌灵100 倍液于扦插前浸薯苗、扦插后在薯苗基部浇施,在5 月中旬—6 月上旬扦插甘薯苗的条件下,大约7 月上中旬甘薯茎基部腐烂病未发病至初发病时,在甘薯茎基部每隔10 天左右,连续喷施防治3 次的防效最好,达60.10%,产量达18798.61 kg/hm2,比对照增产389.51%,且极显著地高于其他处理。

关 键 词:四川  四川  油菜  扩展DEA模型  
收稿时间:2018/7/12 0:00:00
修稿时间:2018/8/1 0:00:00

Prevention and Control of Fungicides on Stem Base Rot of Sweet Potato
Abstract:To effectively prevent and control sweet potato stem rot, on the basis of the test in 2016, different concentrations of five fungicides or the mixtures of two of the five fungicides were used in field control experiments on sweet potato stem rot in 2017. The results showed that 50% carbendazim 100 times solution was used for soaking the seedlings before cutting, and then applied to the base of the seedlings after cutting, under the cutting from mid-May to early June, the best control effect could be achieved by 3 times continuous spraying with 10 days interval at the stem base from no sweet potato stem base rot to the onset of the disease. The control effect could reach 60.10%, and the yield was up to 18798.61 kg/hm2, which increased by 389.51% compared with the control and was significantly higher than other treatments.
Keywords:fungicides  potato  stem base rot  Prevention
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