In many developing countries manure is anaerobically digested to produce biogas. The residue of manure digestion, bio-slurry, can be used as fertilizer for crop production and aquaculture. This study compared bio-slurry and manure as fertilizers. Nutrients in bio-slurry, especially nitrogen, are more readily available then in manure, leading to a larger short term fertilisation effect. However, risks for N losses through volatilisation and leaching are large for bio-slurry than for manure during storage, handling and application. Unfortunately, most studies that compared bio-slurry and manure exhibited methodological shortcomings that hamper an adequate comparison.
|Place of Publication||Wageningen|
|Number of pages||45|
|Publication status||Published - 2014|
|Publisher||Alterra Wageningen UR|
- fertilizer application
- biogas slurry
- developing countries
- biobased economy
Bonten, L. T. C., Zwart, K. B., Rietra, R. P. J. J., Postma, R., de Haas, M. J. G., & Nysingh, S. L. (2014). Bio-slurry as fertilizer : is bio-slurry from household digesters a better fertilizer than manure? : a literature review. (Alterra-report; No. 2519). Wageningen: Alterra, Wageningen-UR.