Statischer Duengungsversuch Bad Lauchstaedt, Long Term Soil Organic Matter Crop Experiment, Germany
Entry ID:
UFZ.SOM
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Summary
Abstract:
This experiment began in 1902 at a Cool Temperate site in Germany. The parent material of the soil is loess which was deposited during the Weischel ice age as a 120-150 cm thick layer over calcareous moraine material of high density from the Saale ice age. The original ecosystem at this site was a grassland. The land use previous to the experiment was arable land. The crop rotations in this ... project are: sugar beet,spring barley,potatoes,winter wheat. The treatments are: (no lime,lime every 4 years,+25% legumes in rotation)x(no FYM,20t FYM/2yrs,30tFYM/2yrs)x(nil,PK,N,NK,NP,NPK). The measurements made (data available), frequency, and methodology are listed below: a) Vegetation measurements made and frequency Yield: Every year Total above-ground dry matter: Not regularly Total dry matter offtake: Every year Carbon content of offtake: Every year Nitrogen content of offtake: Every year Every year: P, K, Mg on 6 main treatments. b) Soil sampling Details of soil sampling method: Soil samples are taken with an auger from the 0-30 cm layer. Samples are taken from the margins of the plots (width of margin 3m at minimum depending on crop). Mixed sample from 20 cores. Air-dried, ground to <2 mm, mechanical device for subsampling. Soil is separated into layers. Details of measuring depths and soil layers: 0-30 cm every year. 30-60,60-100 cm not regularly. Deep sampling to a depth of 5 m in the last 3 years. c) Soil measurements made and frequency Total carbon: 6 main treatments every year, the rest every 4 years after winter wheat harvest Method of measuring total carbon: Dry combustion , CO2 detection by infrared adsorption (according to DIN (Deutsche Industrie-Norm) H3) Biomass carbon: Not regularly Method of measuring biomass carbon: Substrate-induced respiration Carbon measurements in other organic matter fractions: Not regularly Method of measuring carbon in other organic matter fractions: Hot-water soluble carbon: hot-water extraction of soil, Chws content is determined colorimetrically or titrimetrically after oxidation by bichromate (according to DIN H3) Carbon dioxide evolution: Not regularly Method of measuring carbon dioxide evolution: Biological activity: incubation at 25%C and 60% water capacity, detection of CO2 by infrared adsorption (INFRALYT). Total nitrogen: 6 main treatments yearly, others 4-yearly after winter wheat harvest Method of measuring total nitrogen: Dissolving of organic N at 380deg C in conc. sulphuric acid via catalytic converter (Se), water vapour distillation to drive out ammonium, titration (according to DIN H11). Method of measuring nitrogen in other organic matter fractions: Hot water soluble N: hot water extraction of soil, N determination after Kjeldahl (distillation, titration) (according to DIN H11). Nitrate nitrogen: 6 main treatments yearly, others 4-yearly after winter wheat harvest Method of measuring nitrate nitrogen: Extraction with K2SO4. Measurement by ion-selective electrode. Ammonium nitrogen: 6 main treatments yearly, others 4-yearly after winter wheat harvest Method of measuring ammonium nitrogen: Extraction with K2SO4. Measurement by ion-selective electrode. Soil bulk density or weight: Not regularly Method of measuring soil bulk density or weight: Drying of 20 g air-dried soil at 105 deg C for 8 hours; weighing (=dry weight), filling up with xylol, determination of xylol consumption. Other nutrients: P, K, Mg every year; Cu, B, Mn, Zn, Mo, Ca not regularly. 6 main treatments only. Atmospheric inputs: PAHs: soil, plant, air samples; determination by HPLC/F. N: dry and wet deposition. FYM analysis: DM, N, P and K yearly since 1903; C analysis of FYM since 1988. Sugar content of sugar beet & starch content of potatoes: yearly measurements. d) Details of the meteorological station Nearest meteorological station to the site: Bad Lauchstaedt which is 0 km from the site at coordinates 11deg 53min E, 51deg 24min N. The meteorological station is automatic. e) Meteorological data available and frequency Rainfall: Daily Air temperature: Daily Soil temperature: Daily at 5, 20, 50 cm depth Wind speed: Daily Net Radiation: Daily (global) Sun hours: Daily Relative humidity: Daily f) Isotope measurements available and frequency Nitrogen 15 measurements in vegetation: Every year since 1993 Total soil nitrogen 15 measurements: 2 or 3 times a year since 1993 depending on task Total soil mineral nitrogen 15 measurements: 2 or 3 times a year since 1993 Nitrate nitrogen 15 measurements: Twice a year since 1993 Ammonium nitrogen 15 measurements: Twice a year since 1993 Details of isotope measurements: Total soil N-15: Elemental analyzer-MS coupling (EA-MS). Nitrate & ammonium in soil: extraction with 1N KCl, distillation after BREMMER-KEENEY, N-15 determination of ammonium sulphat by EA-MS or emission spectrometer. N-15 in OM: hot water extraction. All measurements are taken on samples from the nil plots. On other variants only total soil N-15 measurements at irregular intervals. DATA AVAILABLE IN ELECTRONIC FORMAT Yield data available in electronic format from 1903 Total dry matter offtake data available in electronic format from 1903 Nitrogen content of offtake data available in electronic format from 1959 Data available in electronic format for rainfall from 1956 Data available in electronic format for air temperature from 1956 Data available in electronic format for net radiation from 1956 Data available in electronic format for relative humidity from 1956 This information was compiled for the GCTE-SOMNET Database, Pete Smith, Pete Falloon, David Powlson, and Jo Smith. Soil Science Department, IACR-Rothamsted, UK.
Related URL
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Description:
This url links to the GCTE-SOMNET home page where additional project information and methodology can be obtained. This site is currently in a data sharing phase of the network where actual data will become available shortly, at different levels of accessibility. Please follow this link for more information.
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Geographic Coverage
(Click for Interactive Map)
Spatial coordinates
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N: 51.5
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S: 51.39
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E: 11.89
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W: 11.88
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Min Depth:
SURFACE
Max Depth:
5M
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Quality
a) Details of the plots Width of smallest plot is 26.5 m Length of smallest plot is 10 m Details of direction of cultivation: Right angles Width of Discard Strip around plot: 3 m b) Details of replication, randomization and controls There are at least 4 replicates in the experiment. Systematic design. There are control plots.
Access Constraints
none
Data Set Progress
IN WORK
Personnel
Role:
TECHNICAL CONTACT
Phone:
+49 34635 73 212
Fax:
+49 34635 73 288
Email:
mkoersch at bdf.ufz.de
Contact Address:
Umweltforschungszentrum Leipzig - Halle GmbH
Hallesche Strasse 44
City:
Bad Lauchstaedt
Postal Code:
D-06246
Country:
Germany
Role:
DIF AUTHOR
Phone:
(301) 614-6898
Fax:
301-614-5268
Email:
Tyler.B.Stevens at nasa.gov
Contact Address:
NASA Goddard Space Flight Center
Global Change Master Directory
City:
Greenbelt
Province or State:
MD
Postal Code:
20771
Country:
USA
Publications/References
Autorenkollektiv (1970) "Der Statische Versuch Lauchstaedt in sieben Jahrzehnten" Akademie-Verlag, Berlin.
Korschens, M. [Ed.] (1994) Der Statische Duengungsversuch Bad Lauchstadt nach 90 Jahren. Einfluss der Duengung auf Boden, Pflanze und Umwelt. B.G. Teubner Verlagsgesellschaft, Stuttgart-Leipzig (and references therein).
Creation and Review Dates
DIF Creation Date:
2000-02-22
Last DIF Revision Date:
2008-01-31
Future DIF Review Date:
2001-02-22
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