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Revista Colombiana de Ciencias Hortícolas
versión impresa ISSN 2011-2173
Resumen
CELY-REYES, GERMAN EDUARDO et al. Determination of salt dynamics in leached water from cultivated onions (Allium cepa L.) under two irrigation systems in the Samaca-Boyaca Valley. rev.colomb.cienc.hortic. [online]. 2022, vol.16, n.1, e13654. Epub 14-Ene-2023. ISSN 2011-2173. https://doi.org/10.17584/rcch.2022v16i1.13654.
The water used for agricultural irrigation has significant effects on crop production, along with chemical degradation of soil and water. This study determined the salt dynamics in two irrigation systems for bulb onion cultivation in the Samaca Valley, Colombia. Water samples were taken from the irrigation (reservoir) and the crop with lysimeters. The pH, sodium, potassium, calcium, magnesium, sulfates, chlorides, electrical conductivity (EC), and sodium adsorption ratio (RAS) index were measured. The T-student test was applied to independent samples for the response variables. Significant differences were found between the irrigation systems for EC and SO4 2- at 100 dat. The irrigation water (reservoir) was classified as C3-S1. The leached water in the two irrigation systems, according to the relative concentration of Na+ with respect to Ca2+ and Mg2+ (RAS) and CE, was C4-S1. Therefore, the water had a high probability of salinization, not suitable for irrigation, meaning that management plans must be carried out to prevent soil and water degradation. These results can be used to develop a sustainable management plan for water and soil resources in the Samaca Valley to prevent loss of productive land.
Palabras clave : electrical conductivity; irrigation management; pH; salinization.