Soil water availability for drip-irrigated common bean crop

• Main Authors: Edson Fagne dos Santos, Silvanio Rodrigues dos Santos, Abner José de Carvalho, Ignácio Aspiazu, Polyanna Mara de Oliveira
• Format: Article
• Language: English
• Published: Universidade Federal de Goiás 2019-11-01
• Series: Pesquisa Agropecuária Tropical
• Subjects: phaseolus vulgaris l.; water availability factor; irrigation management
• Online Access: https://www.revistas.ufg.br/pat/article/view/57367/33916

Minimum limits of soil water storage should be established for the irrigation management of crops, in order to satisfactorily provide water to plants. This study aimed to define the soil water availability factor (f factor) that provides the maximum agronomic yield and maximum water-use efficiency for drip-irrigated common bean cultivars. The experiment was carried out in a randomized block design, with four replications. The treatments were arranged in split plots, with the plots consisting of f factors (0.20, 0.35, 0.50, 0.65 and 0.80) and subplots consisting of common bean cultivars (BRS Pérola and BRS Estilo). The use of f factors between 0.30 and 0.35 is recommended for common bean crops to obtain the maximum agronomic yield and maximum water-use efficiency. The BRS Estilo cultivar presents a water-use efficiency 16 % higher than the BRS Pérola.