Grass Clippings Increase Soil Carbon and Nitrogen

Turfgrass Selection and Grass Clippings Management Influence Soil Carbon and Nitrogen Dynamics

• Less than 3 yr post-establishment, tall fescue accumulated more soil C (i.e., labile soil C, total soil C, and soil organic matter) than Kentucky bluegrass.
• Returning grass clippings for 2 yr increased both soil C (i.e., labile soil C and total soil C) and N (i.e., total soil N) compared to collecting clippings over the same period.
• Labile soil C increased linearly over the 5 yr of the experiment.

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