Nutrients Recovered from Organic Residues as Fertilizers: Challenges to Management and Research Methods
Journal Title: World Journal of Agriculture and Soil Science - Year 2019, Vol 1, Issue 4
Abstract
Biofertilizers, fertilizers made from organic residues, could replace some mineral fertilizers, reducing energy consumption and resource mining. The main treatment options are composting, anaerobic digestion, drying, pyrolysis and combustion, they can be used alone or in combination. The quality of biofertilizers depend both on the original residue and on the treatment, but in most cases not all the nutrients are immediately available to plants. It is difficult to predict how available the nutrients are, and when they will become available. The methods to assess and predict nutrient availability are reviewed. Furthermore, the effect of biofertilizers on the environment in the form of nutrient losses and greenhouse gas emissions are reviewed and compared to mineral fertilizers. There is a need to produce biofertilizers with better and more predictable qualities, and also to understand their effects over multiple seasons.
Authors and Affiliations
Bente Foereid
Keywords
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- EP ID EP591306
- DOI 10.33552/WJASS.2019.01.000516
- Views 59
- Downloads 0
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