This README_VRijssel_2022_Soil_microbes_in_organic_agriculture_MEC-22-0027.R1_DRYAD.txt file was generated on 2022-06-07 by Sophie Quirina van Rijssel GENERAL INFORMATION 1. Title of Dataset: Soil microbial diversity and community composition during conversion from conventional to organic agriculture 2. Author Information A. Principal Investigator Contact Information Name: Sophie van Rijssel Institution: Netherlands Institute of Ecology Adress: PO box 50, 6700 AB 12 Wageningen, The Netherlands. Email: s.vanrijssel@nioo.knaw.nl B. Associate or Co-investigator Contact Information Name: Guusje Koorneef Institution: Wageningen University and Research Adress: PO box 47, 6700 AA, Wageningen, The Netherlands. Email: guusje.koorneef@wur.nl C. Alternate Contact Information Name: Ciska Veen Institution: Netherlands Institute of Ecology Adress: PO box 50, 6700 AB 12 Wageningen, The Netherlands. Email: c.veen@nioo.knaw.nl 3. Date of data collection (single date, range, approximate date) : June-July 2017 4. Geographic location of data collection : Netherlands 5. Information about funding sources that supported the collection of the data: This work was funded by the Dutch Research Council (NWO-Groen ALWGR.2015.5). The data is gathered by Netherland Institute of Ecology (NIOO-KNAW) and Wageningen University and Research. It can be used but please cite the dryad doi and the publication in Molecular Ecology. DATA & FILE OVERVIEW 1. File List: VRijssel_2022_VitalSoils_Microbes_metadata_MEC-22-0027.R1_DRYAD.csv 3. Additional related data collected that was not included in the current data package: metabarcoding data is Sequencing data have been submitted to the European Nucleotide Archive (accession number: PRJEB41305). Code availability: the source code of R for model fitting is available on GitHub at: https://github.com/SophievanRijssel/MEC-22-0027.R1 4. Are there multiple versions of the dataset? no METHODOLOGICAL INFORMATION see publication DATA-SPECIFIC INFORMATION FOR: VRijssel_2022_VitalSoils_Microbes_metadata_MEC-22-0027.R1_DRYAD.csv 1. Number of variables: 21 2. Number of cases/rows: 204 3. Variable List: ID : sample ID nr; a unique numeric code that identifies the sample Full_code : unique code that identifies the sample ; there is no extra information other than a summary of other columns (M/S indicates the soil type, C/O indicates the management) Field : field where the sample was taken; this is an agricultural arable field located in the Netherlands managed by a farmer that applied either conventional or organic management Pseudorep : Indicates whether it is th first, second or third sample of the same field. Within each field 3 samples were taken; these are pseudoreplicates. Fieldnr : field number; we assigned unique numbers to each field. Pair : identifies which conventional and organically fields are paired (conventional as reference fields of the organic fields). Soil : States whether fields are on clay or sandy soil Management : states whether the management was Conventional or Organic (according to SKAL certification (www.skal.nl)), based on European legislation. (“Stichting Keur Alternatief voortgebrachte Landbouwproducten” which is translated as “Control authority for organic production”). Soil_Management : combination of soil type and management in one column Region : region where the sample was taken, these are dutch provices and their surroundings. Zeeland is a province in the southwest of the Netherlands, these are Marine Clay soils for multiple thousand years. Flevoland is a province that became land between 1900 and 2000, these soils are Marine Clay Soils. Marine clay soils were Fluvisols from marine origin with an elutriable fraction of 17.5-45%. Sandy soils were located in the Eastern half of the Netherlands, namely the dutch provinces Brabant&Limburg, Gelderland, Drenthe&Overijssel All sandy soils are Anthrosols with a very low elutriable fraction and an A-horizon of at least 30 cm Yearssince : nr of years the organic fields received organic management Yearssince.as.if : same as above but now also the paired conventional fields (references) got the same number of years assigned pH : pH-water, measured on fresh soil, without unit. decimal = , SOM : Soil Organic matter, measured by loss of ignition (LOI). unit = fraction. See methods of paper for measurement details. decimal = , coordinates : latitude and longitude coordinates of where the sample was taken. For privacy reasons these are less detailed than original GPS data. 16S_ID : gives the sample ID of the 16S data that you can find in the European Nucleotide Archive (accession number: PRJEB41305) ITS_ID : gives the sample ID of the ITS data that you can find in the European Nucleotide Archive (accession number: PRJEB41305) 4. Missing data codes: NA