Estimativa de custos de produção de seringais de cultivo nos estados do Espírito Santo e Minas Gerais 1987

Abstract

This work aims to economically analyse the rubler trees exploration in the North and the South of Espírito Santo State, Va le do Rio Doce and Zona da Mata, M.G.. Data were collected by interviewing the farmers directly using questionnaires to determine the production systems costs in each region. The Investiment Theory in Goods Production was used for the whole period of time estimated for the rubler trees, that is twenty-seven years. Costs were estimated at different discount rates. The minimum alternative cost of the capital was 12% a year. Ali the prices of production factors as well as those of the harvested product were corrected according to the prices of Noveraber 1987 (Cz$ and in US$). Three production systems were analysed: "muda raiz mia, ensacola faz viveiro"; "faz viveiro saco plástico" and "aquisição de muda enxertada" for the North of Espírito Santo State. The system "aquisição de muda enxertada" for Espírito Santo and Minas Gerais States (Vale do Rio Doce e Zona da Mata) . The average costs per unit produced were calculated by kilogram of dried rubber. Both production systems-"faz viveiro e saco plástico" ; "compra muda raiz nua, ensacola e faz viveiro"- in the North of Espírito Santo State showed, at 12% a year rate, the highest and the lowest average cost (US$0.88/kg of dried rubber), (US$1.20/kg of dried rubber). Considering the quotation of internai prices (november 1987) as US$2.48/kg of dried rubber it could be concluded that in ali production systems studied the farms obtained real profits.