Ultuna Long-term Soil and Crop Data from a 1956 Swedish Agricultural Experiment

Long-term agricultural experiment data from a Swedish site in use for over 300 years, initiated in 1956. It includes annual crop yield, nutrient content, and biennial soil carbon and nitrogen measurements under 14 different treatments like fertilizers and organic amendments. Daily meteorological data from a nearby station, including rainfall and temperature, is also available.

Use Cases

• Modeling long-term soil organic matter trends based on biennial total carbon and nitrogen measurements.
• Analyzing crop yield and nutrient offtake responses to different fertilizer and organic amendment treatments.
• Correlating agricultural outcomes with daily meteorological variables like rainfall and temperature.
• Studying the effects of historical land use on soil properties over a multi-decadal timeframe.

Strengths

• Data spans over six decades from a controlled long-term experiment initiated in 1956.
• Includes 14 distinct treatment types, from mineral fertilizers to organic amendments like manure and sawdust.
• Combines annual crop measurements with biennial soil data and daily meteorological records.

Limitations

• Description metadata is limited; actual data quality requires manual inspection after download.
• Column-level documentation is absent; field semantics must be inferred after download.
• Some archived soil and crop samples are noted as missing or destroyed.

Provenance

Source

SCIOPS

Collection Method

Field measurements from a long-term agricultural experiment.

Time Range

Experiment began in 1956; data collection is ongoing with annual and biennial measurements.

Freshness

Last update date is unknown; freshness unverified.

Geography

Ultuna, Sweden (coordinates approximately 17° E, 60° N).