Sweet sorghum Sorghum bicolor (L.) Moench) is a promising crop for bioethanol production characterized by its high biomass yield, sugar-rich stalks, facile juice extraction, and ability to adapt to different production systems. The objective of this study was to assess the effects of cultivation practices (soil treatments) on the juice, sugar, and ethanol yields of sweet sorghum variety Roger. Three methods of tillage (minimum, traditional, and traditional tillage with rupture of the plow layer) and three types of fertilizers (inorganic, organic, and without fertilizer) were assayed. The best results of stem yield (44.3 tons/ha), juice production (25.6 m³/ha), concentration of soluble solids in the juice (16.9 °Brix), and juice ethanol yield (2.1 m³/ha) were obtained under a mixture of traditional plowing with plow layer breaking, applying an organic fertilizer. In addition, the extracted juice allowed yeast (industrial Saccharomyces cerevisiae PE-2) growth and conversion to ethanol without the need for nutrients supplementation. Therefore, sweet sorghum continues to be an interesting bioenergetic crop for production of first-generation biofuels.

甜高粱高粱（L.）Moench是生物乙醇生产的有前途的作物，其特点是生物量高，茎秆糖含量高，汁液提取容易，并且能够适应不同的生产系统。这项研究的目的是评估栽培实践（土壤处理）对甜高粱品种罗杰的果汁，糖和乙醇产量的影响。分析了三种耕作方法（最小耕作，传统耕作和具有耕层破裂的传统耕作）和三种肥料（无机肥料，有机肥料和无肥料）。茎产量（44.3吨/公顷），果汁产量（25.6 m ³ /公顷），果汁中可溶性固体的浓度（16.9°Brix）和果汁乙醇产量（2.1 m ^{3）的最佳结果}（/ ha）是在传统耕作与犁耕层破裂的混合物下施用有机肥料而获得的。此外，提取的果汁使酵母菌（工业酿酒酵母PE-2）生长并转化为乙醇，而无需补充营养。因此，甜高粱仍然是生产第一代生物燃料的有趣的生物能源作物。