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汇总:农作物七大危害较大的根部病害
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汇总:农作物七大危害较大的根部病害
农作物种植生产过程中,瓜果烂根的病害种类非常多,但是每种作物都有一种或几种常发、主发病害。以下主要列举防治比较困难的七大根部病害。1、辣(甜)椒疫霉根腐病辣(甜)椒定植前后,土壤湿度过大,且持续时间长时发病严重;或者遇连阴天棚内低温高湿,尤其是大水漫灌后都会导致该病的发生和流行。2、黄瓜拟茎点霉根腐病发病部位为根茎部。嫁接黄瓜幼苗期和结瓜初期易发病。3、西红柿茎基腐病茎基腐病发病适温为24℃,所以在每年7-10月份棚内温度较高时发病最为集中。在12月到翌年二月,因棚内温度较低,发病较轻。4、茄子...
Fungicides China News 201802 (Chinese version)
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