Soil and vegetation property data from the Ultuna R3-RAM56 long-term soil amendment experiment, 1956-2023

Abstract

The R3-RAM56 long-term experiment in Ultuna, Sweden has tracked the effect of organic and inorganic amendments on agricultural crop and soil properties for the past almost 70 years. Aboveground crop biomass has been collected annually since the beginning of the experiment, while topsoil samples were collected three times in the first twenty years and every other year since 1963. We report crop yields and nutrient content, as well as carbon, nitrogen, and micronutrient content for soils and amendments. The data presented here provides the backbone for numerous published studies in international peer-reviewed journals, and provides a useful time series for calibrating models of soil carbon and nitrogen stocks under varying agricultural management practices in relation to soil amendments. (c) 2025 The Author(s). Published by Elsevier Inc. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/)

Keywords

Soil carbon; Crop yields; Long-term experiments; Fertilization; Agriculture

Published in

Data in Brief
2025, volume: 59, article number: 111350
Publisher: ELSEVIER

SLU Authors

• Pold, Grace

  • Department of Soil and Environment, Swedish University of Agricultural Sciences
    

• Macdonald, Emme

  • Department of Soil and Environment, Swedish University of Agricultural Sciences
    

• Braun, Sabina

  • Department of Soil and Environment, Swedish University of Agricultural Sciences
    

• Herrmann, Anke

  • Department of Soil and Environment, Swedish University of Agricultural Sciences
    

UKÄ Subject classification

Soil Science

Publication identifier

• DOI: https://doi.org/10.1016/j.dib.2025.111350

Permanent link to this page (URI)

https://res.slu.se/id/publ/140939