SLU long-term field experiments: The frame trial (R3-RAM56), crop and soil data from 1956 and onwards
SND-ID: 2024-468. Version: 1. DOI: https://doi.org/10.5878/7f5n-vp94
Is part of collection at SND: SLU Long-Term Agricultural Experiments
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Creator/Principal investigator(s)
Research principal
Swedish University of Agricultural Sciences
- Department of Soil and Environment
Description
The SLU long-term agricultural field experiments are a nationwide research infrastructure consisting of experiments in hydrological management, tillage, landscape ecology, plant nutrition, weed biology and control, cropping systems, and cropping systems in northern Sweden. They are used to study how crop rotations and cultivation measures in agriculture affect soil properties and crop yields in the long term, and the effect of weather and climate on the efficacy of these treatments. The experimental sites and the data collected in the long-term experiments are a valuable resource for research, teaching and consulting. The experiments are open for those who want to use data already collected or who want to do their own sampling. All long term experiments are funded by the NJ faculty and administered by an academic department, with the activities coordinated by a committee.
Twenty four long-term field experiments in plant nutrition and soil fertility are currently managed by the Department of Soil and Environment at the Swedish University of Agricultural Sciences. These experiments, starting
Twenty four long-term field experiments in plant nutrition and soil fertility are currently managed by the Department of Soil and Environment at the Swedish University of Agricultural Sciences. These experiments, starting as early as 1936 or as recently as 2010, are grouped into eight different experimental series that focus on themes such as agronomically-relevant factors including liming, long-term soil fertility, soil organic matter and soil biology. Plant and soil samples have been collected, measured for standard parameters, and archived since the start of the experiments, forming the basis of over 200 theses and papers across a broad range of disciplines.
The frame experiment is located at the Ultuna Campus at the Swedish University of Agricultural Sciences and has been ongoing since 1956. The aim of the experiment is to study the effect of different combinations of organic matter and nitrogen fertilization on soil organic matter content, yield level and crop nutrient content. This dataset contains values for nutrient content in crops, soil and organic matter, and yields between 1956 and 2023. The data is provided as a single tsv file (RAM56_data.tsv), with an additional seven tsv files providing context. Physical data collected by researchers since the beginning of the experiment, together with plant and soil samples collected from a subset of time points during the experiment, are stored at the Swedish University of Agricultural Sciences. Show less..
Data contains personal data
No
Language
Unit of analysis
Study design
Field trial
Description of study design
The experiment consist of 15 treatments with four field replicates, resulting in a total of 60
plots organized in four blocks. Plots are randomized except for block 1. Organic material is added in autumn every second year. Nitrogen is applied yearly. All treatments receive 20 kg P ha and 38 kg K ha-1. The type of mineral P and K fertilizer is not specified in the experimental plan. Crop rotation were alternating spring cereals and spring oil seed until 2000, after that only maize harvested as green forage has been grown.
Sampling procedure
Time period(s) investigated
1956 – Ongoing
Variables
62
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Data collector:
Swedish University of Agricultural Sciences
- Temporal resolution: 1 year
Geographic spread
Geographic location: Uppsala Municipality
Geographic description: 59.81256, -17.65095. Agricultural fields in Ultuna.
Responsible department/unit
Department of Soil and Environment
Contributor(s)
Sabina Braun
- Swedish University of Agricultural Sciences, Department of Soil and Environment
Emme Macdonald - Swedish University of Agricultural Sciences, Department of Soil and Environment
Grace Pold
- Swedish University of Agricultural Sciences, Department of Soil and Environment
Sven L. Jansson - Swedish University of Agricultural Sciences
Jan Persson - Swedish University of Agricultural Sciences
... Show more..
Sabina Braun
- Swedish University of Agricultural Sciences, Department of Soil and Environment
Emme Macdonald - Swedish University of Agricultural Sciences, Department of Soil and Environment
Grace Pold
- Swedish University of Agricultural Sciences, Department of Soil and Environment
Sven L. Jansson - Swedish University of Agricultural Sciences
Jan Persson - Swedish University of Agricultural Sciences
Holger Kirchmann - Swedish University of Agricultural Sciences
Lenart Mattsson - Swedish University of Agricultural Sciences
Gunnar Börjesson - Swedish University of Agricultural Sciences
Nadia Maaroufi
- Swedish University of Agricultural Sciences, Department of Soil and Environment
Anke Herrmann
- Swedish University of Agricultural Sciences, Department of Soil and Environment
Funding 1
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Funding agency:
European Research Council
- Funding agency's reference number: 862695
- Project name on the application: Towards climate-smart sustainable management of agricultural soils
- Funding information: This research was conducted within the framework of the European Joint Program for SOIL ‘Towards climate-smart sustainable management of agricultural soils’ (EJP SOIL) funded by the European Union Horizon 2020 research and innovation programme (Grant Agreement N° 862695).
Funding 2
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Funding agency:
Swedish University of Agricultural Sciences
- Funding information: Faculty of Natural Resources and Agricultural Sciences
Research area
Agricultural science (Standard för svensk indelning av forskningsämnen 2011)
Soil science (Standard för svensk indelning av forskningsämnen 2011)
Persson, J. and Kirchmann, H., 1994. Carbon and nitrogen in arable soils as affected by supply of N fertilizers and organic manures. Agriculture, Ecosystems & Environment, 51(1-2), pp.249-255.
DOI:
https://doi.org/10.1016/0167-8809(94)90048-5
