Dantas, B. Contribuicoes do setor agropecuario para a solucao da crise energetica [Etanol; Combustivel; Residuo organico; Brasil] pt. 1 [Contribution of the farm sector to the solution of the energy crisis [Ethanol; Fuel; Organic matter; Brazil]] [pt. 1] Subjects--Topical Terms: Recurso energeticoProducao vegetalAlcoolResiduo organicoEtanolCombustivelGasolinaVinhaca