CRUCIAL Field Trial

Objective
To demonstrate and understand the effects of fertilization with different urban and animal organic waste materials on soil properties and crop quality.
Data Access Statement
Available to any researcher on request
Data license
Don't know
Data policy
Don't know
Organizations
University of Copenhagen
research organisation
Bakkegården
experimental research station
Person
Jakob Magid
principal investigator
University of Copenhagen
Section for Plant and Soil Sciences

Site: Field 39, Bakkegården

Type
research farm
Location
Taastrup
Copenhagen
Denmark
Geographic location
55.681009, 12.276524
+−
© OpenStreetMap contributors
Elevation
22 Metres
Visits permitted?
No
Management
The experiment site is typically sown with a spring grain crop. Until 2008 the crop most plots were undersown with white clover (Trifolium repens) and weeds controlled mechanically. After 2008 herbicide based weed management commenced and white clover was undersown in one treatment only.
Soil type
cambisol
Soil description
The soils are a sandy loam. A gradient in clay content across the field is present resulting in a minor difference in the mean clay content in the three replicate blocks (from 16.9% in block 1–14.3% in block 3).
Climatic type
temperate oceanic climate

Design period: (2002—)

Design Type
Randomized complete block design
Design description
Plots are separated by 3m grass strips in order to avoid movement of soil between treatments
Number of blocks
3
Number of plots
39
Number of replicates
3
Number of harvests per year
1
Crops
CropYears grown
wheat
oats
barley
rapeseed
rye grass
clover
Factor
Factor name
Factor levels
fertilizer exposure
The fertilizers were spread on land and incorporated by ploughing to approximately 20 cm.
Plot application: Whole plot
control exposure
Unfertilized
clover
Clover undersown, no other fertilizers applied

Related publications

  • S. López-Rayo, K.H. Laursen, J.D.S. Lekfeldt, F. Delle Grazie, J. Magid Long-term amendment of urban and animal wastes equivalent to more than 100 years of application had minimal effect on plant uptake of potentially toxic elements Agric. Ecosyst. Environ., 231 (2016), pp. 44-53