Ethanol Production Potential from Sweet Sorghum Fertilized with Filter Cake and Vinasse from the Sugarcane Industry
Eduardo Henrique Lima de Lucena, Emmanuel Damilano Dutra, Elvira Maria Regis Pedrosa, Rômulo Simões Cezar Menezes, Jose Nildo Tabosa, André Luiz de Carvalho, Mário Monteiro Rolim, Renisson Neponuceno de Araújo Filho, Dário Costa Primo, Jadson Emmanuel Lopes Antunes, Victor Casimiro Piscoya
Journal of Experimental Agriculture International · pp. 1–13 · Published 5 Jul 2018
10.9734/JEAI/2018/42574Abstract
Sweet sorghum (Sorghum bicolor L. Moench) has high potential to produce ethanol as a complementary crop to sugarcane, whose industry generates large amounts of waste that can be used as fertilizer. The effect of using vinasse and filter cake in the sweet sorghum production was evaluated in an experiment carried out at the “Luiz Jorge da Gama Wanderley” Experimental Station (Agronomic Institute of Pernambuco - IPA) in Vitória de Santo Antão, PE, Brazil, from July to October 2013. The experimental design was randomized blocks consisting of two independent factors (five levels of vinasse application (0; 19.42; 77.68; 155.36 and 310.72 m3ha-1) and five levels of filter cake (0; 2.75; 11.0; 22.0 and 44.0 Mg ha-1), with four replicates. Sorghum stem yield and ethanol potential, wet cake weight, total recoverable sugars, reducing sugars and fiber were determined. Vinasse and filter cake promoted increases in sorghum stem, sugar, and ethanol yield. Therefore, the use of vinasse and filter cake enables the production of sweet sorghum for ethanol production complementary to sugarcane.
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