Estudo técnico e econômico do uso do sistema de irrigação por gotejamento na cultura do cafeeiro, considerando quatro safras.

Abstract

The objective of evaluating technique and economically the use of the drip irrigation system, in the culture of the coffee in the region of Lavras-MG, an experiment with to cultivate Acaiá MG-1474, implanted in a spacing of 3,0 x 0,6 m. A randomized block design with 5 treatments (L0 = without irrigation, L1 = 100%, L2 = 80%, L3 = 60% and L4 = 40% of the Evaporation of the Tanque Classe A – ECA) and 4 replications. For accomplishment of the economic analysis, the data of production of the first four accumulated crops were used, 1998/1999, 1999/2000, 2000/2001 and 2001/2002. The analysis of the costs of the irrigated orchard was based on the theory of the production costs.There was good technical efficiency, once the medium productivity of the treatments was 79, 71, 68, 63 and 51 bags per hectare, for L1, L2, L3, L4 and L0, respectively. Considering the price of the bag of coffee for R$92,50, the analyzed economic situation showed this level of price does not sustain an economical coffee production with or without irrigation. To adopt anyone of the irrigated treatments, the enterprise it can only be sustained in the short period, not taking into account the remuneration of the capital and the replacement of part of the fixed resources. It is constituted in a descapitalization process of productor.