Evaluación del rendimiento y calidad del tomate riñón (solanum lycopersicum mill) empleando la bomba peristáltica y el dispositivo venturi como sistema de inyección en fertirriego

Abstract

This investigation aimed to evaluate the yield and quality of tomato (Solanum lycopersicum Mill) using the peristaltic pump and the Venturi device as injection system in fertigation. The yield and quality variables of 50 plants of each treatment sampled at random were evaluated by means of the Student's t-test. The uniformity of fertilizer distribution in the irrigation lines was also evaluated by means of conductivity readings. Finally, the economic analysis was carried out by means of the cost-benefit ratio of each treatment. The best results were obtained from the treatment managed with the peristaltic pump as the fertilizer injection system, whose yield was 71 183 kg per hectare. In the quality evaluation, the treatment managed with the Peristaltic Pump obtained better results in comparison with the Venturi, with mean equatorial diameter of the fruits of 71.27 millimeters, categorizing it as "first" quality, with 4.3 brix degrees. In the evaluation of the distribution of fertilizers, the treatment with the peristaltic pump showed greater uniformity in the distribution of them along the irrigation lines. Finally, this treatment showed a cost-benefit ratio of 51 cents for every dollar invested, giving a profitability of 51%. It is concluded that the use of the Peristaltic Pump as an injection system can improve the yield and quality of riñón tomatoes compared to traditional systems. .