Water requirements and crop coefficients of arugula grown in a protected environment

2019 
espanolRESUMEN Para cultivos horticolas, mantener un suministro hidrico adecuado es esencial para obtener maximas productividades, por lo que se objetivo en este estudio determinar la demanda hidrica (ETc) y los coeficientes de la cultura (Kc) de la rucula en invernadero. El experimento fue conducido en el Centro Tecnico de Riego de la Universidad Estatal de Maringa, en Maringa - PR. Para la determinacion de la evapotranspiracion del cultivo (ETc) se utilizaron tres lisimetros de compensacion con nivel freatico constante y para estimar la evapotranspiracion de referencia (ETo) se utilizo la ecuacion de Penman-Monteith. El consumo total de agua del cultivo de la rucula fue de 113,27 mm. Los coeficientes del cultivo medios determinados fueron: estadio inicial 1,92, estadio intermedio 1,03 y estadio final 1,80. EnglishABSTRACT Maintaining an adequate water supply is essential to obtain maximum yields in vegetable crops. As such, this study aimed to determine the water requirements (ETc) and crop coefficients (Kc) of arugula grown in a protected environment under subtropical climate conditions. The experiment was conducted in a greenhouse at the Center for Irrigation Technology of the State University of Maringa in Maringa, Parana state (PR), Brazil. Crop evapotranspiration (ETc) was determined using three constant water table lysimeters and reference evapotranspiration with the Penman-Monteith equation. The total water consumption of the arugula crop was 113.27 mm. The average values obtained for the crop coefficients in the initial, mid- and late-season stages were 1.92, 1.03 and 1.80, respectively.
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