微肥中几种金属元素对丽江山慈菇鳞茎腐烂病的防治研究  

Control Effects of Several Metal Ions in Micronutrienl Fertilizer on the Bulb Rot of Iphigenia indica Kunth

作　　者：甄莉[1] 杨旭英 杨永红[3] 

机构地区：[1]黑龙江八一农垦大学动物科技学院,黑龙江大庆163319 [2]云南省大理白族自治州植物保护站,云南大理671000 [3]云南农业大学云南省植物病理重点实验室,云南昆明650201

出　　处：《安徽农业科学》2010年第34期19436-19437,共2页Journal of Anhui Agricultural Sciences

摘　　要：[目的]探索长孢直喙镰孢霉引起的丽江山慈菇鳞茎腐烂病的新型防治方法。[方法]研究了8种金属离子对该病原菌生长的影响,并测定了丽江山慈菇根际土壤和鳞茎中7种金属元素的含量。[结果]当Cu2+和Mg2+浓度大于1.0 mg/L、Zn2+和Ca2+浓度小于0.5mg/L时,可显著抑制病原菌生长。丽江山慈菇鳞茎在生长过程中可高度富集K,富集Zn和Mg,限制吸收Ca和Fe,抑制吸收Cu和Mn。[结论]含Mg元素的微肥可用于防治丽江山慈菇鳞茎腐烂病。[Objective]The new control methods of the bulb rot of Iphigenia indica Kunth.caused by Fusarium orthoceras App.et Wr.var.longius（Sherb.） were explored.[Method]The effect of eight different kinds of metal ion on the pathogen was studied;the contents of seven different kinds of metal ion in rhizosphere earth and bulb were also determined.[Result]The results showed that when the concentration of Cu2＋ or Mg2＋ was higher than 1.0 mg/L or the concentration of Zn2＋ or Ca2＋ was lower than 0.5 mg/L,the growth of pathogen could be restrained.The results also showed that the bulb could enrich K highly,enrich Zn and Mg,limit the absorption of Ca and Fe,and inhibit the absorption of Cu and Mn during the growth process of bulb in Iphigenia indica Kunth.[Conclusion]Micronutrient fertilizer containing Mg could be used to prevent and cure the bulb rot of Iphigenia indica Kunth.

关 键 词：丽江山慈菇 腐烂病 长孢直喙镰孢霉 金属离子 抑制 

分 类 号：S48[农业科学—农药学]