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Revista de Ciências Agrárias

Print version ISSN 0871-018X


HURTADO-SOLER, A.  and  BATLLE-SALES, J.. Using LEACHM model for evaluation and optimization of the use low quality water in citrus. Rev. de Ciências Agrárias [online]. 2010, vol.33, n.1, pp.22-30. ISSN 0871-018X.

To evaluate the risk of salinization in soils with citrus crop we use the model LEACHM calibrated and validated in 7 pro­files of the Torreblanca's sedimentary basin (Castellón, Spain). An analysis of scenes was applied by means of the combination of: crop, climate, soils, type of irrigation and waters quality and analyzed alternative strategies by means of the utilization of wa­ter mixtures. The statistical index indicates a better ad­justment of the model in the rootzone be­tween the 200-600 mm and a light up-estimation of the moisture content in the lower layers. As for the risk of salinization the results confirm the inappropriate use of the waters with CE > 3 dS/m. The water use with 2-3 dS/m is recommended only in the drip irrigation and there proposes an alterna­tive that diminishes the risk of salinization by means of the application of different types of water depending on the season.

Keywords : Irrigation; Models; Salinity; Water of quality.

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