Encontro de Energia no Meio Rural

Abstract

CAMPOS, Alessandro Torres, ZANINI, Agostinho, PRESTES, Tânia Maria Vicentini et al. Energy inputs and outputs and sustainability of corn silage production. In Procedings of the 5th Encontro de Energia no Meio Rural, 2004, Campinas (SP) [online]. 2004 [cited 14 October 2024]. Available from: <http://www.proceedings.scielo.br/scielo.php?script=sci_arttext&pid=MSC0000000022004000100030&lng=en&nrm=iso> .

The agricultural ecosystem as way of converting solar energy in products, needs several energy sources, among that sources stand out fertilizers, agricultural defensives and others. These inputs are derived from fossils. In the present paper, it was studied the energy flows involved in corn silage production in a no tillage crop system, in São Miguel of Iguaçu-Paraná State/Brasil. In the direct energy flow, the fuels and lubricants were the largest consumers, representing 45.90% of the total, the agricultural defensives were responsible for the consumption of 24.12% of the total, while the fertilizers for 10.53% of the total consumption. By computing the fossil origin components, fuels, lubricants, defensive and fertilizers, the participation of the total consumption of energy was of 84.07%.

Keywords : Agroecossistemas; energia na agricultura; fluxos de energia; sustentabilidade; infra-estrutura rural.