Data underlying the publication: Integration of six field studies to assess soil suppressiveness against Globisporangium ultimum under different management practices

In this study we used datasets from different studies that measured Globisporangium ultimum suppressiveness. We assessed if soil type, organic amendment and/or soil disinfestation affect suppressiveness over a number of studies and if inundation or tillage affect suppressiveness in only one study respectively. In addition, we analyzed if soiltype, organic amendment or disinfestation are associated with other soil biological parameters. Moreover, it was assessed if suppressiveness was correlated with soil biological and soil chemical parameters.<br>In all studies Globisporangium suppressiveness was measured with a bioassay at Biointeractions and Plant Health (WPR) as described in the article. In short, all experiments were conducted with field soils and all respectively treatments were applied in the field. Half of each soil sample was inoculated with Globisporangium and the other half was not inoculated. The soil was then sown with garden cress and incubated at 23/18°C day/night with a day length of 16h and a relative humidity of 60%. Seven days after sowing, the percentage of diseased plants per area of each pot was estimated visually. In this study the percentage of diseased plants (disease incidence) in inoculated soils was used as a measure of soil suppressiveness.<br>The datasets used were: Farmer's Network 2019 and 2021, Soil Health Experiment 2018 and 2019, BASIS 2019, Inundation 2018, 2019, PPS Greeb 2017 and 2018, Organic Waste Streams 2018 and 2019. In the first analyses, each study was analysed separately. In the second approach, the data was combined for disinfestation and organic amendment removing the studies Farmer’s network and Inundation data. From the BASIS data only organic amendment information was used. For all remaining studies, treatments were coded as either 1 or 0 for disinfestation and organic amendment. Soil type was divided in sand or clay. Typically each study was conducted on only one soil type except for the Farmer’s network, which included both soil types. It should be noted that anaerobic disinfestation per definition always includes the addition of organic material. Additional biological and chemical measurements per study are stated in the article.<br>