Differences in soil carbon sequestration and soil nitrogen among forages used by the dairy industry

► There were significant differences in rates of carbon sequestration between forages. ► Perennial C4 forages kikuyu and paspalum had the highest rates of SOC sequestration. ► The rate of SOC sequestration by the C4 forages was 2.6 t C/ha/year. ► High rates of N fixation of up to 726 kg N ha/year where achieved by white clover.