IOSDV – International organic nitrogen long-term fertilization experiment, Keszthely
This experiment has been added by the GLTEN Curators using existing published sources.
- Objective
- To investigate mineral and organic nitrogen fertilization
- Description
- The “International Mineral and Organic Nitrogen Fertilization Trial” (Der Internationale Organische Stickstoffdauerdüngungversuch) was set up in 1983, while the first harvest year was 1984. In the experiment a three course cereal crop rotation is rotated since the beginning. The crop rotation consists of maize, winter wheat and winter barley in this order. There are two factors, organic amendments and mineral N fertilization There are five mineral N rates for all three crops in the crop rotation.
- Data Access Statement
- Don't know
- Data license
- Don't know
- Data policy
- Don't know
- Organization
- Pannon University of Agricultural Sciences, Keszthely
- People
Site: IOSDV Keszthley
- Type
- research station field
- Location
- KeszthleyHungary
- Geographic location
- 46.45, 17.14
- Elevation
- 115 Metres
- Visits permitted?
- No
- Management
- Ploughing, cultivation, seeding rate, sowing method and phosphorus and potassium fertilization rates (100 kg*ha−1 P2O5% and 100 kg*ha−1 K2O) are the same for all plots. Conventional soil tillage system is applied for seedbed preparation based on shallow stubble tillage, followed by ploughing (27 cm) in the Autumn, then secondary tillage and seedbed preparation. Plot size is 48 m2 (6 m × 8 m). The experimental field is rainfed, no irrigation was applied neither since nor before the beginning of the trial.
- Soil type
- Ramann~
- Soil description
- Ramann~s brown forest soil, a sandy loam
- Soil properties
Variable Depth Value (range) Units Ref year Estimated? Baseline? soil organic carbon 1 Percent total soil nitrogen 0.12 percent soil pH (6.8 – 7) - Climatic type
- Pannonian Climate Zone
- Climate description
- continental climate of central Europe
- Climate properties
Variable Time period Value (range) Units mean annual air temperature (average of last 50 years) 10.8 degree Celsius mean annual precipitation (average of last 50 years) 650 millimeter mean annual air temperature (2014) 11.8 millimeter mean annual air temperature (2015) 11.4 millimeter mean annual air temperature (2016) 11.2 millimeter mean annual precipitation (2014) 877 millimeter mean annual precipitation (2015) 591 millimeter mean annual precipitation (2016) 779 millimeter
Design period: Current design period (1983—)
- Design Type
- strip plot design
- Description
- Two types of organic amendment treatment were applied as a supplement to mineral N fertilization. As a control only mineral N treatments were applied also. Straw was removed and there was no added organic matter in the “No” (control) treatment (only mineral N treatments are applied); straw was removed, but farmyard manure (35 t*ha−1, 0.5% N, once every three years, before the maize) was added in the “Manure” treatment once in the 3 year rotation before maize; and straw was incorporated in the “Straw” treatment in each year. The straw incorporation was completed with 10 kg N*t straw*ha−1. There are five mineral N rates (N0, N1, N2, N3 and N4) for all three crops in the crop rotation (N is applied each year according to the crop).
- Design description
- The experiment is a bifactorial experiment having a strip plot design and 3 replications. The two factors are organic amendments and mineral N fertilization.
- Number of replicates
- 3
- Crops
Crop Years grown maize winter wheat barley - Crop Rotation
- Rotation since start 1983—
- 1maize
- 2winter wheat
- 3barley
- Factors
- Factor name
- Factor levels
- nitrogen fertilizer exposure different rates for winter wheat crop
N 0 (?? kgN/ha)
N1 (50 kgN/ha)
N2 (100 kgN/ha)
N3 (150 kgN/ha)
N4 (200 kgN/ha)
- nitrogen fertilizer exposure different rates for maize crop
N1 (70 kgN/ha)
N2 (140 kgN/ha)
N3 (210 kgN/ha)
N4 (280 kgN/ha)
- Measurements
Variable Material Units Frequency Scale Comment microbial biomass carbon Not specified soil aggregate stability Not specified soil organic carbon Not specified crop yields Not specified
Related publications
- Effects of Organic Amendments on Soil Aggregate Stability and Microbial Biomass in a Long-Term Fertilization Experiment (IOSDV) Csitári, Gábor, Zoltán Tóth, and Mónika Kökény. 2021. Sustainability 13, no. 17: 9769 https://doi.org/10.3390/su13179769 [In English]