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The reclaimed water is a safe water resources for irrigation of citrus.
Besides providing nutrients that may improve the quality of lemons and tangerines, according to the findings of a doctoral thesis defended at the UPCT by Francisco Pedrero and obtained the highest score, Cum Laude.
The Murcia region is a pioneer in terms of treatment and reuse of treated wastewater.
Segura Basin of Spain is the only natural water resources which can not meet the demand of users.
The agricultural sector is the largest consumer of water.
Therefore, according to Francisco Pedrero, modern and sustainable agriculture goes through the use reclaimed water for irrigation.
The thesis, entitled "Sustainable Management of irrigation with reclaimed water" and directed by Juan José Alarcón and Oussama Mounzer, the CEBAS Irrigation Department has assessed the impact of the use of reclaimed water for irrigation of citrus.
He has also studied the use of Geographic Information Systems (GIS), modern tools for the management of water reuse projects.
The tests were conducted over the past four years in an experimental plot in Campotéjar lemon and mandarin, in Molina de Segura.
According to the findings of the thesis, the use of nutrients from treated wastewater saves on the cost of agricultural fertilizers.
The combination of deficit irrigation strategies with the use of reclaimed water has improved the quality of citrus test.
But the residual water as well as potential risks of soil salinization or toxicity in the plant.
Pedrero explains that salinity is the main drawback of the use of reclaimed water in the Region of Murcia.
Therefore, "to avoid economic losses must establish appropriate strategies for managing soil, water and crops," he says.
In the Region of Murcia are purged hectometres about a hundred a year.
This volume of water represents 13% of water used in agriculture in Murcia.
The Minister of Agriculture and Water, Chief Justice of the thesis, noted the importance of these studies at the field level to continue using these resources in a sustainable agriculture in Murcia.
Source: UPCT
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