Forages, cover crops and related shoot and root additions in no-till rotations to C sequestration in a subtropical Ferralsol

▶ Forage-based contribute more to soil C sequestration than cover crop-based rotations. ▶ Legume contributes more than grass cover crop to soil C accumulation in no-tillage. ▶ Soil C accumulation relates better with root than with shoot additions. ▶ Most of C accumulation in crop rotations occurs in the mineral-associated fraction. ▶ There is a trend for C saturation due to root additions in no-till soil.