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小果型西瓜疫病有哪些發病條件
小果型西瓜疫病有哪些發病條件
更新时间:2024-10-12 05:53:57

苗期疫病在髙溫高濕環境中容易發生。 田間濕度和栽培措施對該病影響最大,發病适宜溫度為 26°C〜29°C,在田間濕度高于90%時發病重。若雨季 來臨早、雨量大、雨日多的年份則發病早、病害傳播迅 速。凡是地勢低窪,澆水過多,排水不良,根被水浸時間過長,果被淹更易發病。

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