Effect of Nitrogen Fertilization Levels on Bio-ethanol Production of Sweet Sorghum Varieties

Khalil, Mostafa K.; Osman, Mahmoud S.; Mesbah, El-Sayed A.; Abd- EL Fatah, Eid F.

doi:10.21608/ajar.2024.276691.1337

	Effect of Nitrogen Fertilization Levels on Bio-ethanol Production of Sweet Sorghum Varieties
Al-Azhar Journal of Agricultural Research
Article 3, Volume 49, Issue 1, June 2024, Page 26-32 PDF (565.11 K)
Document Type: Original Article
DOI: 10.21608/ajar.2024.276691.1337
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Authors
Mostafa K. Khalil ¹; Mahmoud S. Osman²; El-Sayed A. Mesbah²; Eid F. Abd- EL Fatah²
¹Sugar Crops Research Institute, Agriculture Research Center, Giza, Egypt.
²Department of Agronomy, Faculty of Agriculture, AL-Azhar university, Cairo Egypt.
Abstract
Two field experiments investigated the impact of nitrogen fertilizer on bioethanol production from various sweet sorghum varieties in Egypt. The study, conducted across two seasons, analyzed the effects of fertilizer rates (60, 90, and 120 kg N/fed.) on stalk length, sucrose content, stripped stalk yield, juice yield, and ethanol yield. Significant variations were observed in most studied traits across both seasons, except juice extraction percentage, which only differed significantly in the second season. Sweet sorghum plants receiving the highest nitrogen application (120 kg N/fed.) demonstrated the most desirable outcomes for most traits. Conversely, the lowest fertilizer application (60 kg N/fed.) resulted in the least favorable outcomes across both seasons. Additionally, significant differences were noted between the sweet sorghum varieties themselves. SS 301-1 and MN 1500 varieties consistently achieved the highest values for most studied traits, except for juice extraction percentage in the second season, where Rex and Brands varieties excelled. In conclusion, the study suggests that applying 120 kg N/fed of nitrogen fertilizer to SS 301-1 sweet sorghum variety can potentially enhance sucrose content and bioethanol production within the specific soil conditions of the Egyptian experiment.
Keywords
Sweet sorghum varieties; nitrogen fertilization; bio-ethanol


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