Use of organic substrates for increasing soil organic matter quality and carbon sequestration of tropical degraded soil: a 3-year mesocosms experiment
2014
Ngo, Phuong Thi | Rumpel, Cornelia | Doan Thu, Thuy | Henry Des Tureaux, Thierry | Dinh-Kim Dang, - | Jouquet, Pascal | Institut d'Ecologie et des Sciences de l'Environnement de Paris ; Institut National de la Recherche Agronomique (INRA)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut de Recherche pour le Développement (IRD [France-Ouest])-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12)-Centre National de la Recherche Scientifique (CNRS)-Ecole Normale Supérieure Paris-Saclay (ENS Paris Saclay) | Vietnam Academy of Science and Technology (VAST) | Soils and Fertilizers Research Institute (SFRI) ; Vietnam Academy of Agricultural Sciences (VAAS) | CNRS French institute [UMR-7618-BIOEMCO]; IRD French institute [UMR-211-BIOEMCO]; SysteMO; French embassy; IRD
International audience
显示更多 [+] 显示较少 [-]英语. Background: Exogenous organic matter may be valuable amendments for degraded tropical soil in Northern Vietnam. Their effect on carbon storage and composition need to be evaluated. Method: The study investigates soil from mesocosms cultivated with maize and amended with four different kinds of amendments: only mineral fertilizers (control), buffalo manure, compost or vermiconnpost as well as biochar. Results: All organic amendments showed a positive effect on soil carbon storage and significantly influenced soil organic matter quality. The presence of biochar increased lignin-derived compounds abundance as well as both plant and microbial sugar content of soil amended with vermicompost but had no effect in the case of control soil. Conclusion: Synergistic effects between plants and different organic amendments influence carbon storage and soil organic matter composition.
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