Economic profitability indicators of minitomatoes organic production in greenhouses

Financial profitability is a factor as important as quantifying production using new technologies. This study was installed to evaluate short and long term financial viability of organic production of cherry tomatoes. Plants were grown in a greenhouse under diverse technological degrees for partial control of micrometeorological elements. The experiment was carried out at the experimental field FEAGRT/UNICAMP in three greenhouses with automated mechanical ventilation systems, evaporative cooling and thenno reflective screen. We cultivated Carolina cultivar in a spacing of 0.5x0.9 m, each plant conducted with two stems, under organic production and fertilization management. The average of production data of treatments [three greenhouses (A= climate-controlled, B= mobile screen and C= fixed screen), two cultivation systems (pots and soil beds) and five bio fertilizer doses (0, 50, 100, 150, and 200%)] were evaluated using joint analysis. Thus, the economic indicators [cost benefit ratio (B/C), net present value (NPV), internal rate of return (IRR) and Payback (PV)] were evaluated through revenues and production costs. The best alternative to net monthly cycle profitability (500 m(2)) was approximately 1 and 1.5 minimum wage with and without particular labor, respectively, associated with the greenhouse of medium technological level, using soil bed cultivation system. The economic viability of the project in long-term interest rates above 3% (a.a) was consistent, but the payback period even with a rate of 1% a.a was high (6.54 years) in financing conditions.