Use of organic substrates for increasing soil organic matter quality and carbon sequestration of tropical degraded soil : a 3-year mesocosms experiment Phuong-Thi Ngo Rumpel, C. Thuy Doan Thuc /Henry des Tureaux, Thierry Dinh-Kim Dang /Jouquet, Pascal SOL DEGRADE FERTILITE DU SOL SOL CULTIVE MAIS AMENDEMENT DU SOL CARBONE AZOTE STOCK ENGRAIS ORGANIQUE ENGRAIS MINERAL COMPOST MATIERE ORGANIQUE ETUDE COMPARATIVE BIOCHAR SEQUESTRATION DU CARBONE 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 vermicompost 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. 2014 text https://www.documentation.ird.fr/hor/fdi:010062828 fdi:010062828 Phuong-Thi Ngo, Rumpel C., Thuy Doan Thuc, Henry des Tureaux Thierry, Dinh-Kim Dang, Jouquet Pascal. Use of organic substrates for increasing soil organic matter quality and carbon sequestration of tropical degraded soil : a 3-year mesocosms experiment. 2014, 5 (2), 155-168 EN VIET NAM ZONE TROPICALE