Abstract

ARMAS-BANO, Jorge Carlos et al. Effect of the salinity of aqueous soil extract in sprinkler irrigation systems. Rev Cie Téc Agr [online]. 2024, vol.33, n.3  Epub Sep 01, 2024. ISSN 2071-0054.

The National Institute of Water Resources promotes efficient water management in agricultural enterprises, based on the application of scientific research results. In spite of the investment made in the Laguna Blanca Agricultural Enterprise, there are still difficulties in making agricultural production sustainable, due to the low agro-productivity of the soils and the decrease in the efficiency of irrigation water use. For this reason, it is necessary to update, from the design of the installations, the operating parameters of the irrigation systems with centre pivot and reel machines. Based on the solution of two real case studies, the negative effects of the presence of salts in the soil solution on crop yields and on the sustainability of the supply sources involved in the irrigation activity are addressed. The hypothetical-deductive method was used to validate the convenience of considering salinity in the soil saturation extract at the design stage. As a result, the average pumping flow rate was identified as the design parameter that significantly influences the operation of these irrigation machines; the increase of this parameter infers the need to establish plot drainage systems to reduce the effects of soil saturation and the presence of salts in the soil solution.

Keywords : Irrigation Machines; Pumping Rate; Irrigation Efficiency; Soil Saturation, Salinity.

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