Specific microbes or microbial communities differ between low- and high-risk soils for cavity spot

<p>The files contain community data from metagenomic sequencing of soil samples collected from 30 commercial carrot fields in the Holland Marsh, Ontario. Sampling was conducted during the first week of June each year from 2021 to 2023. All fields were located within a 20 km radius, featured muck soil with 35–80% organic matter, and followed an onion-carrot crop rotation with similar agronomic practices.</p> <p>Also included is the Disease Severity Index (DSI) for the carrot fields, categorized as low or high risk. Disease assessments were conducted at harvest (early October) for all fields involved in the study.</p> <p>The data files contain microbial abundance information for various communities, including bacteria, fungi, and oomycetes, along with their corresponding taxonomy files. Metadata files for each community are also included.

本数据集涵盖采自加拿大安大略省荷兰沼泽地区30处商业胡萝卜种植田的土壤样本宏基因组测序（metagenomic sequencing）群落数据。采样工作于2021至2023年每年6月第一周进行。所有样田均处于20公里半径范围内，土壤为有机质占比35%~80%的沼积土，且均采用洋葱-胡萝卜轮作制度，农艺管理措施统一规范。
数据集同时包含对应胡萝卜田的病害严重度指数（Disease Severity Index, DSI）数据，该指数划分为低风险与高风险两类。本研究涉及的全部样田均于收获期（10月初）完成病害评估。
数据文件包含各类微生物群落的丰度信息，涵盖细菌、真菌及卵菌（oomycetes），并配套对应的分类学文件；此外还提供了每个微生物群落的元数据文件。