Table 2 N soil surface budget in Germany (averaged over all districts, mean 2015–2017)
From: Nitrogen soil surface budgets for districts in Germany 1995 to 2017
Budget term | kg N ha−1 a−1 |
|---|---|
Input total, thereof | 226.5 |
Mineral fertiliser (inorganic fertiliser) | 103.7 |
Manure (on-farm production) used as fertiliser | 57.8 |
Manure import from abroad | 0.9 |
Digestate from biogas plants | 33.3 |
Compost, sewage sludge, meat-and-bone meal | 3.2 |
Biological N fixation | 12.8 |
Seeds and planting material | 1.3 |
Atmospheric NOx deposition on UAA | 4.0 |
Atmospheric gross NH3 deposition on UAA | 9.5 |
Output total, thereof | − 149.0 |
Harvest withdrawal of marketed crops | − 66.7 |
Harvest withdrawal of fodder crops (livestock production) | − 58.3 |
Harvest withdrawal of energy plants for biogas | − 18.6 |
NH3 emissions from fertiliser application returned to UAA | − 5.4 |
Budget surplus | 77.4 |