Napier grass biofuel research. Close-up of chopped up napier grass (Pennisetum purpureum) harvested from research plots. These samples will be evaluated for moisture and ash content,as part of studies into this plant's potential use as a renewable fuel (biofuel). Photographed in the USA | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Greb, Peggy / US Department of Agriculture |
Bildgröße: | 2417 px × 3626 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: |
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