1. Abrol IP, Sanger S (2006) Sustaining Indian agriculture-conservation agriculture the wayforward. Curr Sci 91(8):1020–1024
2. Alvarez R (2005) A review of nitrogen fertilizer and conservation tillage effects on soil organic carbon storage. Soil Use Manage 21:38–52
3. Anger DA, Ericksen-Hamel NS (2008) Full-inversion tillage and organic carbon distribution in soil profile – a meta-analysis. Soil Sci Soc Am J 72:1370–1374. https://doi.org/10.2136/sssaj2007.0342
4. Arrouays D, Jolivet C, Boulonne L, Bodineau G, Saby N, Grolleau E (2002a) Une initiative nouvelle en France: lamise en place d’un Réseaumulti-institutionnel de Mesures de la Qualité des Sols (RMQS). C R Acad Agr Fr 88(5):93–105
5. Arrouays D, Balesdent J, Germon JC, Jayet PA, Soussana JF, Stengel P (2002b) Increasing carbon stocks in French agricultural soils? Synthesis of an assessment report by the French Institute for Agricultural Research on request of the French Ministry for Ecology and Sustainable Development. Sci. Assess. Unit for Expertise, INRA, Paris. (36 pp)