Summary: Grazing is shown to be superior to haying for organic C and N sequestration. Sequestration rates of 1.51 Mg C ha−1 yr−1 and 0.126 Mg N ha−1 yr−1 were measured during managed grazing of tall fescue over a period of 8 years on land in the southeastern United States that had previously been degraded via haying.
Franzluebbers, A. J., D. M. Endale, J. S. Buyer, and J. A. Stuedemann. 2012. “Tall Fescue Management in the Piedmont: Sequestration of Soil Organic Carbon and Total Nitrogen.” Soil Science Society of America Journal 76:1016-1026.