Wood is the primary source of raw material for paper production – whether as fresh fiber or recycled material. The silphium plant, a perennial energy crop, is now also being used as an alternative ...
A giant form of a flowering daisy plant that can grow 10 feet high may become the favored fuel of Germany's biogas industry. The plant, with small yellow flowers, whose Latin name is Silphium ...
Wood is the primary source of raw material for paper production—whether as fresh fiber or recycled material. The silphium plant, a perennial energy crop, is now also being used as an alternative fiber ...
A giant form of a flowering daisy plant that can grow 10 feet high may become the favored fuel of Germany's biogas industry. The plant, with small yellow flowers, whose Latin name is Silphium ...