Askov Long-Term Experiments on Animal Manure and Mineral Fertilizers - Lermarken
Entry ID: Denmark.Askov

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Summary
Abstract: The ASKOV Long-term Experiments on Animal manure and Mineral
Fertilizers began in 1894. This area was first cultivated around
1800, and was previously open mixed heath and deciduous scrubland. The
Average climatic conditions at the experimental site are: minimum
annual temperature: 4.4 deg C; Mean annual temperature: 7.7 deg C;
Maximum annual temperature: 10.8 deg C; and Mean annual rainfall: 862
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Related URL
Description: This url links to the GCTE-SOMNET home page where additional project
information can be obtained. This site is currently in a datasharing
phase of the network where actual data will become available shortly,
at different levels of accessibility. Please follow this Link for
more information.
Geographic Coverage
Spatial coordinates   
  N: 55.5   S: 55.4   E: 9.12   W: 9.11
Min Depth: SURFACE Max Depth: 20 CM

Data Set Citation
Dataset Originator/Creator: Bent T. Christensen
Dataset Title: Askov Long-Term Experiments on Animal Manure and Mineral Fertilizers - Lermarken
Online Resource: http://www.rothamsted.bbsrc.ac.uk/aen/eusomnet/expts/askovle.html
Temporal Coverage
Start Date: 1894-01-01
Science Keywords
AGRICULTURE > AGRICULTURAL CHEMICALS > FERTILIZERS Parameter Definition
AGRICULTURE > AGRICULTURAL PLANT SCIENCE > CROP/PLANT YIELDS Parameter Definition
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Quality Width of smallest plot is 7.33 m
Length of smallest plot is 9.4 m
Slope: 1-2% . Shape: Uniform
Details of direction of cultivation: Perpendicular to plot borders
Width of Discard Strip around plot: 1-2 m

There are at least 1 replicates in the experiment. See Christensen et
al. (1994).
There are Unmanured plots since 1893 for control plots.
See Christensen et al. (1994)
See Christensen et al. (1994) - based on reexamination of historical
data, descriptions and raw data for crop yield.
Access Constraints none
Data Center
European Soil Organic Matter Network, Global Change and Terrestrial Ecosystems Soil Organic Matter Network, Rothamsted Research Supplemental Info
Data Center URL: http://www.rothamsted.bbsrc.ac.uk/aen/eusomnet/

Data Center Personnel
Name: PETER FALLOON
Phone: +44 (0)1582 763133 x2110
Fax: +44 (0)1582 760981
Email: Pete.Falloon at bbsrc.ac.uk
Contact Address:
Agriculture & Environment Division,
Rothamsted Research,
Harpenden,
Herts. AL5 2JQ UK.
Personnel
Role: TECHNICAL CONTACT
Phone: +45 89 99 1709
Fax: +45 89 99 1719
Contact Address:
Dept. Soil Science
Research Centre Foulum
P.O. Box 23
City: Tjele
Postal Code: DK-8830
Country: Denmark
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Publications/References
Anderson, T.H. & Domsch, K.H. (1989) Ratios of microbial biomass carbon to total organic carbon in arable soils. Soil Biol. Biochem. 21: 471-479.
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Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 1999-09-20
Last DIF Revision Date: 2008-01-31
Future DIF Review Date: 2000-09-20
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