| Autor: |
Daniel E. Dodor, Yahaya J. Amanor, Festus T. Attor, Thomas A. Adjadeh, Dora Neina, Michael Miyittah |
| Jazyk: |
angličtina |
| Rok vydání: |
2018 |
| Předmět: |
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| Zdroj: |
Environmental Systems Research, Vol 7, Iss 1, Pp 1-9 (2018) |
| Druh dokumentu: |
article |
| ISSN: |
2193-2697 |
| DOI: |
10.1186/s40068-018-0108-y |
| Popis: |
Abstract Background Application of biochar has been suggested as a carbon (C) management strategy to sequester C and enhance soil quality. An incubation study was carried out to investigate the interactive effect of biochar and cattle manure application on mineralization of carbon (C) in a tropical coastal savanna sandy soil. Methods The soils were amended with three sole levels of cattle manure (0, 13 and 26 tons ha−1) or biochar (0, 20 and 40 tons ha−1) and four combined manure–biochar levels (20 or 40 tons ha−1 biochar plus 13 or 26 tons ha−1 manure) and CO2 evolution was measured over 56 days incubation period. The soils were analyzed for mineral N (NH4 +-N and NO3 −-N) and water extractable organic C, and net N mineralization, and priming effect (PE) values calculated. Results The cumulative C mineralized increased in the sole manure and biochar amended soils, resulting in 45–125% positive PE. However, co-application of biochar and manure decelerated decomposition of C, probably through adsorption of labile C and net N immobilization, subsequently leading up to negative 35% PE. Conclusions The results suggest that co-application of biochar and cattle manure can potentially stabilize C in manure amended sandy soils, albeit with a temporary mineral N limitation to plants. |
| Databáze: |
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| Externí odkaz: |
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