Fumigants are used to reduce disease pressure and there is some evidence of benefits through promotion of beneficial microorganisms. The current study examined the effect of fumigation and a soil freshener implement, as recommended by the fumigant manufacturer, on the microbial community in a potato field in Southern Alberta. Fumigation did not greatly reduce microbial species abundance or diversity, though there were changes to the community structure. Fumigation and use of the soil freshener increased tuber size profiles, but not marketable yield. Fumigation was effective at reducing wilt ratings, but there was no added benefit to using the soil freshener in the current study. This research highlights the need for management tools to decide whether fumigation and application method will increase profitability within a given production system.

中文翻译：

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阿尔伯塔省南部马铃薯栽培下熏蒸对土壤微生物群落的影响

熏蒸剂可用于减轻疾病压力，并且有一些证据表明，通过促进有益的微生物有益。当前的研究检查了熏蒸剂制造商建议的熏蒸和土壤清新剂对南部艾伯塔省马铃薯田中微生物群落的影响。尽管群落结构发生了变化，但熏蒸并没有大大减少微生物物种的丰度或多样性。熏蒸和使用土壤清新剂增加了块茎的大小，但产量不高。熏蒸可有效减少青枯病，但在当前研究中使用土壤清新剂并没有额外的好处。这项研究强调了需要使用管理工具来决定熏蒸和施用方法是否会在给定的生产系统中提高获利能力。