L28 - Effect of N-fertilization by different organic fertilization - Sproeda

This experiment has been added by the GLTEN Curators using existing published sources.
Objective
To study effects of long-term differentiated mineral-organic fertilization in a crop rotation on the yield, nutrient balance, and soil properties.
Description
One of three experiments established in 1966 at three locations across Germany.
Data Access Statement
Don't know
Data license
Don't know
Data policy
Don't know
Organization
Landesamt für Umwelt, Landwirtschaft und Geologie, Sachsen
research organisation
People

Site: Sproeda

Type
research station field
Location
Sproeda
Saxony
Germany
Geographic location
51.547578, 12.435693
+−
© OpenStreetMap contributors
Visits permitted?
No
Soil type
luvisol
Soil description
The soil is an albic Luvisol (WRB), and the soil texture consists of mainly sand and silt.
Soil properties
VariableDepthValue (range)UnitsRef yearEstimated?Baseline?
sand content0 – 25 Centimetres63 Percent
silt content0 – 25 Centimetres31 Percent
clay content0 – 25 Centimetres6 Percent
soil pH0 – 25 Centimetres (5.3 – 5.6) 2008
soil organic carbon0 – 25 Centimetres (7.1 – 8.3) milligram per kilogram2008
total soil nitrogen0 – 25 Centimetres (0.65 – 0.75) milligram per kilogram2008
cation exchange capacity0 – 25 Centimetres (0.0454 – 0.0488) kilogram per mole2008
Climate properties
VariableTime periodValue (range)Units
precipitation540 millimeter
air temperature8.3 degree Celsius

Design period: (1966—)

Number of harvests per year
1
Crops
CropYears grown
winter wheat
spring barley
sugar beet
potatoes
Crop Rotation
Unnamed
  • 1
    winter wheat
  • 2
    sugar beet
  • 3
    spring barley
  • 4
    potatoes
Factors
Factor name
Factor levels
nitrogen fertilizer exposure
N1  (0 )
Applied to crop: All crops
No fertilizer applied
N2
Applied to crop: All crops
Chemical form: calcium ammonium nitrate
40 kg N ha-1 to grains; 50 kg N ha-1 to to potatoes; 70 kg N ha-1 to sugar beet
N3
Applied to crop: All crops
Chemical form: calcium ammonium nitrate
80 kg N ha-1 to grains; 100 kg N ha-1 to to potatoes; 140 kg N ha-1 to sugar beet
N4
Applied to crop: All crops
Chemical form: calcium ammonium nitrate
120 kg N ha-1 to grains; 150 kg N ha-1 to to potatoes; 210 kg N ha-1 to sugar beet
N5
Applied to crop: All crops
Chemical form: calcium ammonium nitrate
160 kg N ha-1 to grains; 200 kg N ha-1 to to potatoes; 280 kg N ha-1 to sugar beet
N6
Applied to crop: All crops
Chemical form: calcium ammonium nitrate
180 kg N ha-1 to grains; 250 kg N ha-1 to to potatoes; 350 kg N ha-1 to sugar beet
natural fertilizer exposure
none
Without organic amendments.
farmyard manure  (20 t/ha)
Application frequency: Every 2nd year
Chemical form: cattle manure
Applied to root crops
straw  (5 t/ha)
Application frequency: Every 2nd year
Chemical form: straw
Applied to root crops

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