Viabilidade de investimento e análise de risco econômico em projetos de irrigação para produção de tomate no Agropolo Ibicoara-Mucugê, Bahia

Abstract

The objective was to analyze the economic viability of irrigation, including economic risk in irrigated tomato production in the Ibicoara-Mucugê region, in the state of Bahia, Brazil. The studies were conducted in commercial agricultural areas of tomato (Lycopersicon esculentum) production in the Bagisa Farm (13º17 'S, 41º24'W). The analyses were performed based on two forms of pumping irrigation water (diesel engine and electric motor), using three types of electricity pricing in force in the State of Bahia, Brazil. To achieve the overall objective, this study was divided into two chapters that deal with the viability of irrigation in the cultivated area. Chapter I analyzes the profit of four years of irrigation with center pivot system and Chapter II compares the profits of a conventional sprinkler irrigation system and the center pivot system. In general, the pumping with electric motor using the green tariff showed the best results. The highest total annual costs of irrigation are associated with the use of diesel engine. For the center pivot system, labor was the economic factor that least influenced the total annual cost with 8.20%, followed by the maintenance cost, with 16.63%. For both systems and for all the tested situations, the values of the benefit/cost ratio (B/C) were greater than 1, indicating viability. The irrigation system with the lowest benefit/cost ratio, using the green tariff, was the sprinkler, with a value of 1.62. All systems and situations tested had annual net benefit with positive values, strengthening the viability of the projects.