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山西省永济市出现玉米顶腐病
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山西省永济市出现玉米顶腐病
7月底,山西省永济市植保有关农技人员深入田间,通过现场查看发现,玉米顶部叶片扭曲卷裹,严重的心叶腐烂,农技人员分析是由于高温高湿天气引起的玉米顶腐病,建议其叶面喷施农用链霉素或甲基托布津等药剂,同时配以杀虫剂和磷酸二氢钾等叶面肥,以减轻作物受害症状,提高作物抗病性。据了解,玉米顶腐病可分为真菌型和细菌性两种,喇叭口期遇到持续高温易发生该病。特别是在高温、多雨、强光照气候条件下,易伤害叶片顶端的幼嫩组织,导致细菌很快入侵,加之每天玉米周期性的吐水和高温气候,有利细菌大量繁殖,造成叶片顶部组织大量腐...
Fungicides China News 201708 (Chinese version)
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