Co-application of biochar and cattle manure counteract positive priming of carbon mineralization in a sandy soil
| Autor: | Festus T. Attor, Daniel E. Dodor, Yahaya J. Amanor, Michael Miyittah, T. A. Adjadeh, Dora Neina |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
lcsh:GE1-350
Chemistry 04 agricultural and veterinary sciences Mineralization (soil science) 010501 environmental sciences 01 natural sciences Manure Soil quality Cattle manure compost Sandy soil lcsh:TD1-1066 Management strategy Biochar Agronomy Soil water C sequestration 040103 agronomy & agriculture 0401 agriculture forestry and fisheries Priming effect lcsh:Environmental technology. Sanitary engineering Incubation Soils organic matter lcsh:Environmental sciences 0105 earth and related environmental sciences |
| Zdroj: | Environmental Systems Research, Vol 7, Iss 1, Pp 1-9 (2018) |
| ISSN: | 2193-2697 |
| DOI: | 10.1186/s40068-018-0108-y |
| Popis: | 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: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink