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菜苗初长期 当心染上“烂脖根”
预防茎基腐病菜农可以在缓苗后,用恶霉灵、精·甲霜灵锰锌等药剂配合生根剂喷淋茎基部,如甲霜·霜霉威加生根剂进行灌根,同时喷淋茎基部,一般5-7天一次,连续使用两次,杀灭茎秆基部周围的病原菌,从而减少茎基部病害发生。
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