Idioma:

Decreased soil microbial biomass and nitrogen mineralisation with Eucalyptus biochar addition to a coarse textured soil

Dempster, D. N. ; Gleeson, D. B. ; Solaiman, Z. M. ; Jones, D. L. ; Murphy, D. V.

Plant and soil, 2012-05, Vol.354 (1-2), p.311-324 [Periódico revisado por pares]

Dordrecht: Springer

Texto completo disponível

Citações Citado por

Enviar para

Título:
Decreased soil microbial biomass and nitrogen mineralisation with Eucalyptus biochar addition to a coarse textured soil
Autor: Dempster, D. N. ; Gleeson, D. B. ; Solaiman, Z. M. ; Jones, D. L. ; Murphy, D. V.
Assuntos: Acid soils ; Agricultural soils ; Agrology ; Agronomy. Soil science and plant productions ; Ammonia ; Animal, plant and microbial ecology ; Biochar ; Biochemistry and biology ; Biogeochemistry ; Biological and medical sciences ; Biomass ; Biomedical and Life Sciences ; Carbon ; Carbon content ; Carbon dioxide ; Chemical, physicochemical, biochemical and biological properties ; Community structure ; Crop production ; Decomposition ; Ecology ; Eucalyptus ; Eucalyptus marginata ; Evolution ; Forest soils ; Fundamental and applied biological sciences. Psychology ; General agronomy. Plant production ; Life Sciences ; Microbial activity ; Microbial biomass ; Microbiology ; Mineralization ; Nitrogen ; Organic matter ; Organic soils ; Physics, chemistry, biochemistry and biology of agricultural and forest soils ; Physiological aspects ; Plant communities ; Plant Physiology ; Plant Sciences ; Regular Article ; Soil ; Soil biochemistry ; Soil fertility ; Soil microorganisms ; Soil pore systems ; Soil science ; Soil Science & Conservation ; Soil-plant relationships. Soil fertility ; Soil-plant relationships. Soil fertility. Fertilization. Amendments ; Soils ; Soils (organic) ; Sorption ; Triticum aestivum
É parte de: Plant and soil, 2012-05, Vol.354 (1-2), p.311-324
Notas: ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
Descrição: Background and Aims Biochar has been shown to aid soil fertility and crop production in some circumstances. We investigated effects of the addition of Jarrah (Eucalyptus marginata) biochar to a coarse textured soil on soil carbon and nitrogen dynamics. Methods Wheat was grown for 10 weeks, in soil treated with biochar (0, 5, or 25 t ha−1) in full factorial combination with nitrogen (N) treatments (organic N, inorganic N, or control). Samples were analysed for plant biomass, soil microbial biomass carbon (MBC) and nitrogen (MBN), N mineralisation, CO2 evolution, community level physiological profiles (CLPP) and ammonia oxidising bacterial community structure. Results MBC significantly decreased with biochar addition while MBN was unaltered. Net N mineralisation was highest in control soil and significantly decreased with increasing addition of biochar. These findings could not be attributed to sorption of inorganic N to biochar. CO2 evolution decreased with 5 t ha−1 biochar but not 25 t ha−1. Biochar addition at 25 t ha−1 changed the CLPP, while the ammonia oxidising bacterial community structure changed only when biochar was added with a N source. Conclusion We conclude that the activity of the microbial community decreased in the presence of biochar, through decreased soil organic matter decomposition and N mineralisation which may have been caused by the decreased MBC.
Editor: Dordrecht: Springer
Idioma: Inglês

Links

View record in Pascal Francis

Voltar para lista de resultados

Realização: Logos de Redes Sociais:

Decreased soil microbial biomass and nitrogen mineralisation with Eucalyptus biochar addition to a coarse textured soil

Dempster, D. N. ; Gleeson, D. B. ; Solaiman, Z. M. ; Jones, D. L. ; Murphy, D. V.

Dordrecht: Springer

Buscando em bases de dados remotas. Favor aguardar.