秋黄瓜防疫病的方法内容摘要:
2、育壮苗,也可提高对疫病菌抵抗力。 用南瓜尤以黑籽砧木嫁接,能有效防止病害发生。 加强田间管理,采用高垄宽窄行定植,改善通风条件。 一般垄高 1520 厘米,垄宽 3040 厘米,宽垄距 8090 厘米,窄垄距 4050 厘米。 密度为亩保苗38004000 株。 生长期及时拔除病株,摘除病叶,收获后清除枯叶、根茎及杂草,可减少下茬瓜菜侵染源。 采用滴灌和膜下暗灌,禁止大水漫灌,避免积水,结瓜期地面干湿均匀。 发病时浇水减至最低量,以控制疫病扩散。 地膜可阻止病菌附上茎叶和果实。 氮磷钾肥合理搭配,避免偏施氮肥。 发病后喷 58%瑞毒霉锰锌可湿性粉剂 500 倍液,57 天喷 1 次,连喷 3 次,采收前 10 天停止用药。 专利查询。秋黄瓜防疫病的方法
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