SWEET SORGHUM AND FIBER SORGHUM. NEW VARIETIES BIOMASS YIELDS IN EXTREMADURA (SOUTHWESTERN SPAIN)

摘要

Sweet and fiber sorghum (Sorghum bicolor (L.) Moench) is a drought tolerant energy crop with a highnitrogen use efficiency. Sorghum is well adapted as summer crop to southern European environments where sorghumobtains benefits from high radiation and expresses its high water use efficiency. The AGRISOS Project studies sweetand fiber sorghums and evaluates them as a potential energy crop. Different harvest dates and varieties have beentested. Aerial biomass (dry matter) harvested on September was higher than 40 t ha~(-1) for the best sweet sorghumvarieties and 60 t ha~(-1) for the fiber sorghum varieties. These elevated biomass productions make this plant apromising energy crop to obtain biofuels such as bioethanol and biogas.