Estudio de la uniformidad de riego, en una máquina de pivote central
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Abstract
El trabajo se llevo a cabo en la Unidad de Desarrollo Científico y Técnico en Pulido, Alquízar en una máquina de pivote central de la firma Otech-Irrimec1 . Para el estudio se desarrollaron cuatro ensayos con diferentes variantes para emisores del tipo: Spray Nelson D3000K y Boquilla Difusora IIRD. La metodología para la evaluación fue la propuesta en la norma cubana NC ISO 11545:2005. Fueron determinados los parámetros coeficiente de uniformidad de Heermann y Hein (CUh), coeficiente de uniformidad de variación de Bremond y Molle (CUV) y uniformidad de distribución (UD25%) y su relación gráfica con el área regada adecuadamente (ARA). Los resultados arrojaron que la mejor variante fue: “boquilla difusora IIRD a 1m de altura, sin regulador de presión y con contrapesos” donde se obtienen los mayores valores CUh , CUV, UD25% y ARA con 82,33%, 77,51%, 68,08% y 56% respectivamente. También se estableció la clasificación de la calidad de riego utilizando el porcentaje de área regada adecuadamente, a partir de la obtención del CUh y de los criterios de Tarjuelo.
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