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Reduction of nitrous oxide and ammonia emissions through processing of crop residues in vegetable production - ZALF (NEmGem)
Project
Project code: 2822ABS038
Contract period: 01.04.2024
- 31.03.2027
Budget: 384,234 Euro
Purpose of research: Applied research
Keywords: leafy vegetables, fertilization, emissions, vegetable production, climate protection, nutrients, farmyard manure, shoot vegetables
The aim of the project is to reduce nitrous oxide (N2O) and ammonia (NH3) emissions (N-emissions) in field vegetable production, mainly from crop residues with a high nitrogen (N) content. Removal of residues from the field can reduce these N emissions, but further processing of crop residues is challenging. A novel approach is to upgrade crop residues through composting, ensiling, and digestion, and then return them to the field as fertilizer. This upgrading offers considerable potential to recycle N contained in the residues and to use it specifically for subsequent crops, thus reducing the use of mineral fertilizers. The project therefore investigates the removal and valorization of crop residues in white cabbage cultivation (Brassica oleracea L. convar. capitata var. capitata f. alba). In this context, N emissions are quantified for all upgrading methods and in all process stages in order to calculate an N emission balance, and to be able to exclude N relocation effects. Emission measurements under controlled conditions help to determine the influencing factors and thus allow extrapolation on a national level.
Section overview
Subjects
- Crop Production
- Plant Nutrition
- Vegetable Gardening
- Resource management
Funding programme
Excutive institution
Funding institution
Project management agencies
Associated projects: NEmGem
- Reduction of nitrous oxide and ammonia emissions through processing of crop residues in vegetable production - IGZ
- Reduction of nitrous oxide and ammonia emissions through processing of crop residues in vegetable production - ATB
- Reduction of nitrous oxide and ammonia emissions through processing of crop residues in vegetable production - HSMD
