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Collaborative project: Mitigation of ammonia and greenhouse gas emission and improving nitrogen use efficiency by innovative slurry and digestate application techniques for growing crops. Subproject 1 (GülleBest)
Project
Project code: 281B300716
Contract period: 01.09.2018
- 31.10.2021
Budget: 257,362 Euro
Purpose of research: Applied research
Keywords: crop production, crop production, agricultural engineering, climate (climate relevance, climate protection, climate change), fertilization, soil (soil conservation, soil fertility, soil cultivation, soil health), farmyard manure, grassland
One of the most important approaches to reduce ammonia and greenhouse gas emission from crop production is the adoption of new low-emission application techniques for slurry and digestate that are nutrient-efficient, environmentally and climate-friendly. In field trials with winter wheat and permanent grassland at four locations in Germany, different application techniques for cattle slurry and digestate were investigated over two years for their emission reduction and yield effect. Acidification with sulfuric acid and injection (open slot) were able to reduce ammonia emissions in comparison to the near-ground band-shaped application by trailing hose/shoe. The economic evaluation of ammonia abatement costs confirmed the great potential of these approaches. No negative effects of ammonia-reducing techniques on nitrous oxide emissions, yields, and nitrogen efficiency were found. Therefore, the choice of technique and fertilizer recommendation can be made, based on the best ammonia mitigation potential.
Section overview
Subjects
- Plant Nutrition
- Agricultural Engineering Plant Production
- Grassland
- Soil science
- Climate Change
Funding programme
Excutive institution
Funding institution
Project management agencies
Associated projects: GuelleBest
- Collaborative project: Mitigation of ammonia and greenhouse gas emission and improving nitrogen use efficiency by innovative slurry and digestate application techniques for growing crops. Subproject 2
- Collaborative project: Mitigation of ammonia and greenhouse gas emission and improving nitrogen use efficiency by innovative slurry and digestate application techniques for growing crops. Subproject 3
- Collaborative project: Mitigation of ammonia and greenhouse gas emission and improving nitrogen use efficiency by innovative slurry and digestate application techniques for growing crops. Subproject 4
