Research Summary: Biofuel Quality Improved by Delaying Harvest of Perennial Grass

Research shows how a simple management strategy can decrease nitrogen contaminants in perennial grasses, while also providing additional ecosystem services.

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Table of Contents

Switchgrass Harvest
Photo: Rob Mitchell, USDA-ARS.


Nitrogen ash and other mineral matter can be a problem in processing perennial grasses into biofuel through the fast pyrolysis method. Delaying biomass harvest …

Miscanthus (Miscanthus x giganteus) for Biofuel Production

Looking for a perennial biomass crop that grows well on marginal land, needs little fertility, and weed management only during establishment? Research on giant miscanthus shows it produces twice the biomass of switchgrass.


Giant miscanthus. Photo: Jeff Skousen.



Giant …