Denmark's National Inventory Report 2005 - Submitted under the ...

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Crop type kg N/ha
368
Stubble Husks Top Leafs Frequency of ploughing Nitrogen content in crop residue
kg N/ha
kg N/ha
kg N/ha
No. of year before ploughing kg N/ha/yr
M kg N/yr
Winter wheat 6.3 10.7 - - 1 17.0 11.07
Spring wheat 6.3 7.4 - - 1 13.7 0.17
Winter rye 6.3 10.7 - - 1 17.0 0.56
Triticale 6.3 10.7 - - 1 17.0 0.62
Winter barley 6.3 5.9 - - 1 11.3 1.58
Spring barley 6.3 4.1 - - 1 10.4 5.99
Oats 6.3 4.1 - - 1 10.4 0.51
Winter rape 4.4 - - - 1 4.4 0.45
Spring rape 4.4 - - - 1 4.4 0.02
Potatoes (top), non-harvest - - 48.7 - 1 48.7 1.76
Beet (top), non-harvest - - 54.4 a
- 1 54.4 3.14
Straw, non-harvest - - - - 1 7.6 a
8.97
Pulse 11.3 - - - 1 11.3 0.35
Lucerne 32.3 - - - 3 10.8 0.04
Maize – for green fodder 6.3 - - - 1 6.3 0.75
Cereal – for green fodder 6.3 - - - 1 6.3 0.69
Pulses, fodder cabbage and other green fodder 6.3 - - - 1 6.3 0.00
Peas for canning 11.3 - - - 1 11.3 0.04
Vegetable 11.3 - - - 1 11.3 0.07
Grass- and clover field in rotation 32.3 - 10.0 2 26.2 5.54
Grass- and clover field out of rotation 38.8 - 20.0 - 20.0 3.55
Aftermath 6.3 - - - 1 6.3 1.20
Seeds of grass crops 6.3 10.7 - - 2 13.9 1.14
Set-a-side 38.8 - - 15.0 10 18.9 4.30
Total N from crop residue - 2003 52.51
a
express the yield for 2003 - varies from year to year. Based on yield data from Statistics Denmark and N-content from the feeding plan.
Reference: Djurhuus and Hansen 2003