Resumen

RODRIGUEZ GONZALEZ, Manuel; SANTANA SOTOLONGO, Martín; BROWN MANRIQUE, Oscar  y  ALONSO DE LA PAZ, Freddy. Improvement of continuous furrows irrigation and surge flow, in floor leached red ferralitic soil in the productive system of Banao. Rev Cie Téc Agr [online]. 2014, vol.23, n.1, pp.56-59. ISSN 2071-0054.

His work has of the water in the superficial watering has as objective to improve the effectiveness of the irrigable one and to increase its agricultural productivity, being the result of investigation. They were carried out seven field evaluations, with surge flow at constant times with three cycles of watering of 2 min, automated with the Hydraulic Valve FULCON DN150 and with continuous flow, associated to the onion crops, in floor leached red ferriferous (Nitisol ródico-éutrico). It was evaluated non-erosive sock like accessory of the pipe with multiple exits for surge flow, with a design in fringe, with three treatments of 15 furrows each variant and the presence of a witness. For determining the design parameters and evaluation one not kept in mind the Q_máx, time of advance, time of application, time of opportunity, area watered in function of the time, the indicators of yield of the cultivation and the economic analysis of the cultivation. The seating capacity of the water average of the watering along the furrow was of 0,416 L·s^-1 that I represent alone 52, 6% of the non erosive Q_máx. With the sock he decreases 1,7 times the time it advances, 1,33 times the time of application and to water 153,2 m²·h^-1 more area regarding the witness, in this own treatment the time of opportunity of the first alone third overcomes to the last third 2,3 times while the witness 6,43 times. It was demonstrated that with this modality one can water more area in the same unit of time than the watering of continuous flow. T The biggest yields were obtained with the use of the sock that represented 41,7% of the total obtained in the experimental unit. They are demonstrated the economic advantage that represents the practical use of this technology that reaches a net profit from 45% superior to the traditional method.

Palabras clave : automatic valve; non-erosive sock.

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