Thyrow Endurance Field Experiments: Fertilization and irrigation experiment "Intensity Test"
This experiment has been added by the GLTEN Curators using existing published sources.
- Local identifier
- Thy_D1
- Years operational
- 1937—
- Objective
- Influence of irrigation and mineral N-fertilization on biomass production and C/N turnover in the soil-plant system
- Description
- The experiment was created in 1937 as a long plot experiment with four fertilization stages (nitrogen in combination with organic fertilization) under the name "intensity test". It is one of four Endurance field tests in Thyrow, Germany. In 1969, irrigation was introduced as a test factor for the current "fertilization and irrigation experiment" while at the same time increasing nitrogen fertilization and adapting crop rotation to the irrigation application. This approach should provide insights into how increased biomass production and turnover as a result of irrigation and intensive N supply affect soil organic matter content and whether a stronger supply of organic matter to the soil must take place under these conditions. From 1995, the experiment was adapted to the changed framework conditions of crop production. The low-yielding fruit species Welsh ryegrass, fodder beet and spring barley were replaced by the crops Knaulgras, linseed and öllein (since 1999) and winter rye, which were better adapted to the location, a reduction in N fertilization, an N0 stage and a second straw fertilization was introduced. In recent years, the fruit species have been adapted again, in 2008 the öllein was replaced by winter rapeseed and in 2010 the winter barley by winter wheat.
- Data Access Statement
- Don't know
- Data license
- Don't know
- Data policy
- Don't know
- Organization
- Humboldt University Berlin
- People
Site: Fertilisation and irrigation test
- Type
- research station field
- Local code
- Thy_D1
- Location
- ThyrowGermany
- Geographic location
- 52.1508, 13.1408
- Visits permitted?
- No
- Soil type
- luvisol
- Soil description
- Albic Luvisol
- Soil properties
Variable Depth Value (range) Units Ref year Estimated? Baseline? sand content 83.1 Percent silt content 16.2 Percent clay content 2.7 Percent soil pH (5.5 – 8)
Design period: Current design (1969—)
- Description
- Irrigation was introduced as a test factor while at the same time increasing nitrogen fertilization and adapting crop rotation to the irrigation application. P at 17.5 kg per ha K at 100 kg per ha
- Design description
- Number of test elements: 5x2x4 = 40 (+10 standards) Number of repetitions: 3 Number of cuts: 120+30 (for standards) = 150 Test facility: long parcel standard system
- Number of plots
- 40
- Crops
Crop Years grown potatoes winter wheat winter rapeseed winter rye knuckle grass - Crop Rotation
- Unnamed
- 1knuckle grass
- 2potatoes
- 3winter wheat
- 4winter rapeseed
- 5winter rye
- Factors
- Factor name
- Factor levels
- irrigation process
with sprinkling
without irrigation
- nitrogen fertilizer exposure
N 0 + (0 kgN/ha)
No N applied, straw fertilization onlyN 30 + (30 kgN/ha)
30 kg N per ha applied, with straw fertilizationN 50 + (50 kgN/ha)
50 kg N per ha applied, with straw fertilizationN 60 + (60 kgN/ha)
60 kg N per ha applied, with straw fertilizationN 120 + (120 kgN/ha)
120 kg N per ha applied with straw fertilizationN 50 - (50 kgN/ha)
50 kg N per ha applied, without strawN 60 - (60 kgN/ha)
60 kg N per ha applied, without strawN 120 - (120 kgN/ha)
120 kg N per ha applied, without straw
- Measurements
Variable Material Units Frequency Scale Comment Growth and development rating Not specified yield components Not specified soil organic carbon Not specified
Related publications
- Experiment plan
- Experiment description and results
- Endurance field tests in Thyrow, Germany
- Long-term effects of soil nutrient deficiency on arbuscular mycorrhizal communities (2012) Antunes et al. Functional Ecology Vol 26, issue 2 pp 532-540 https://doi.org/10.1111/j.1365-2435.2011.01953.x [In English]