Long-term fertilizer experiment - Hausjarvi

This experiment has been added by the GLTEN Curators using existing published sources.
Objective
To study the effects P fertilization rates in the soil and on yields.
Data Access Statement
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Data license
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Data policy
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Organizations
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Site: Hausjarvi

Type
research station field
Location
Hausjarvi
Finland
Geographic location
60.783333, 24.916667
© OpenStreetMap contributors
Elevation
110 Metres
Slope
(east facing)
Visits permitted?
No
History
Prior to the experiment starting the site had been under traditional cultivation for many decades
Management
The field is ploughed in autumn and harrowed twice in spring before treatments are applied. All plots receive 100 kg N ha-1.
Soil type
cambisol
Soil description
Soil is classified as a Eutric Cambisol.
Soil properties
VariableDepthValue (range)UnitsRef yearEstimated?Baseline?
clay content0 Centimetres12 Percent
sand content0 Centimetres31 Percent
silt content0 Centimetres57 Percent
soil organic carbon 2.8 Percent
soil pH 7.1
soil density 1.14 kilogram per litre
Climatic type
temperate humid continental climate
Climate properties
VariableTime periodValue (range)Units
air temperature 1981 – 2010 4.5 degree Celsius
precipitation 1981 – 2010 615 millimeter

Design period: (1978—)

Design description
The experiment field is split into 5 areas, 3 receiving N as calcium ammonium nitrate and 2 as compound NPK. Running across the 5 areas are three strips where additional superphospate is applied to calcium ammonium nitrate and compound NPK plots, and 2 strips where no additional P is applied. Plots receiving superphosphate measure 5 x 15 m and plots receiving no superphosphate are larger measuring 15 x 15m Between 2005–2008 the entire field was fertilized with calcium ammonium nitrate only, with no P and K applied.
Number of plots
25
Crops
CropYears grown
spring barley
oats
spring wheat
rye grass
Factors
Factor name
Factor levels
NPK fertilizer exposure
with NPK
Applied to crop: All crops
Application frequency: annually
Chemical form: compound NPK
N at 100 kg N ha -1, P at 35 kg ha -1, and K at 64 kg ha -1.
without NPK
phosphate fertilizer exposure
with superphosphate  (32 kgP/ha)
Applied to crop: All crops
Application frequency: annually
Chemical form: triple superphosphate
without superphosphate  (0 )
nitrogen fertilizer exposure
with CAN  (100 kgN/ha)
Applied to crop: All crops
Application frequency: annually
Chemical form: calcium ammonium nitrate
without CAN
Factor combinations
CAN P0 K0
6 plots
nitrogen fertilizer exposure: with CAN
CAN P1 P0
9 plots. Total P applied is 32 kg P ha-1
nitrogen fertilizer exposure: with CAN
phosphate fertilizer exposure: with superphosphate
N P1 K1
4 plots. Total P applied is 35 kg P ha-1
NPK fertilizer exposure: with NPK
N P2 K2
6 plots. Total P applied is 72 kg P ha-1
NPK fertilizer exposure: with NPK
phosphate fertilizer exposure: with superphosphate
Measurements
VariableMaterialUnitsFrequencyScaleComment
grain yield traitAll crops
forage yieldAll crops
soil fertilitySoil
phosphorous contentAll crops

Related publications

  • Jaakkola, A., Hartikainen, H., & Lemola, R. (1997). Effect of fertilization on soil phosphorus in a long-term field experiment in southern Finland. Agricultural and Food Science, 6(4), 313–322.
  • Rodríguez, I.G., Yli-Halla, M. and Jaakkola, A. (2018), Fate of phosphorus in soil during a long-term fertilization experiment in Finland . J. Plant Nutr. Soil Sci., 181: 675-685.