@article{fdi:010053062, title = {{T}ransformation of buffalo manure by composting or vermicomposting to rehabilitate degraded tropical soils}, author = {{P}huong, {T}. {N}. and {R}umpel, {C}. and {D}ignac, {M}. {F}. and {B}illou, {D}. and {T}oan, {T}. {D}. and {J}ouquet, {P}ascal}, editor = {}, language = {{ENG}}, abstract = {{T}he addition of composted buffalo manure may lead to qualitative and quantitative improvement of the organic matter content of degraded tropical agricultural soils in {N}orthern {V}ietnam. {T}he objectives of this study were to follow the biochemical changes occurring during composting of buffalo manure with and without earthworms during 3 months and to study the effect of the end products (compost and vermicompost) on soil biochemical parameters and plant growth after two months of incubation under controlled conditions in an open pot experiment. {O}ur conceptual approach included characterisation of organic matter of the two composts before and after addition to soil by elemental, isotopic analysis and analytical pyrolysis and comparison with conventional fertilisation. {W}e also analysed for lignin content and composition. {O}ur results showed that composting in the presence of earthworms led to stronger transformation of buffalo manure than regular composting. {V}ermicompost was enriched in {N}-containing compounds and depleted in polysaccharides. {I}t further contained stronger modified lignin compared to regular compost. {I}n the bulk soil, the amendment of compost and vermicompost led to significant modification of the soil organic matter after 2 months of exposure to natural weather conditions. {T}he lignin component of {SOM} was unaffected whatever the origin of the organic amendment. {C}ompost and vermicompost amendments both enhanced aggregation and increased the amount of organic matter in water stable aggregates. {H}owever, vermicompost is preferable to compost due to its beneficial effect on plant growth, while having similar positive effects on quantity and quality of {SOM}.}, keywords = {{S}oil rehabilitation ; {C}ompost ; {V}ermicompost ; {O}rganic matter chemistry}, booktitle = {}, journal = {{E}cological {E}ngineering}, volume = {37}, numero = {2}, pages = {269--276}, ISSN = {0925-8574}, year = {2011}, DOI = {10.1016/j.ecoleng.2010.11.011}, URL = {https://www.documentation.ird.fr/hor/fdi:010053062}, }