Dispêndios Energéticos No Sistema De Produção Da Seringueira.

The energy balance aims to establish the energy flows, identifying the total demand and efficiency, reflected by the net gain and the output / input ratio. The objective of this study is to analyze the energy performance of rubber cultivation using indicators such as Cultural Efficiency, Cultural Productivity and Energy Efficiency and Energy Balance. We used data from the hues of technical coefficients and physical requirements of production factors for rubber in the State of São Paulo. The results show that the Energy Efficiency obtained was 7,05 units of non-renewable energy applied in the energy system. rubber production, this value indicates that the relationship between the sum of total energies and the sum of nonrenewable energy inputs is positive.