{"id":67388,"date":"2026-05-28T13:15:01","date_gmt":"2026-05-28T11:15:01","guid":{"rendered":"https:\/\/interreg-sudoe.eu\/?post_type=piloto-proyecto-27&p=67388"},"modified":"2026-05-29T13:34:50","modified_gmt":"2026-05-29T11:34:50","slug":"an-gel-pilot-trial-micro-sprinkler-systems-for-frost-protection-irta-lleida","status":"publish","type":"piloto-proyecto-27","link":"https:\/\/interreg-sudoe.eu\/en\/piloto-proyecto-27\/an-gel-pilot-trial-micro-sprinkler-systems-for-frost-protection-irta-lleida\/","title":{"rendered":"An-Gel pilot trial \u2013 Micro-sprinkler systems for frost protection \u2013 IRTA (Lleida)"},"content":{"rendered":"
\n

Context<\/span><\/h4>\n

Spring frosts represent one of the main risks for fruit production, especially during critical stages such as flowering and fruit set. Recent events, such as those in April 2022, caused significant losses in various production areas, highlighting the sector\u2019s vulnerability and the need to improve existing protection systems.<\/p>\n

In this context, protection systems based on water application have proven to be the most effective, as they take advantage of the heat released during freezing. Among these solutions, micro-sprinkling represents a technological advancement that maintains a high level of protection while significantly reducing water and energy consumption.<\/p>\n<\/section>\n

 <\/p>\n

\n

Pilot trial<\/span><\/h4>\n

The project is structured around a pilot trial carried out in two representative locations in the fruit-growing area of Lleida:<\/p>\n

    \n
  • Mollerussa:<\/strong> experimental pear orchard under intensive system.<\/li>\n
  • Gimenells:<\/strong> commercial nectarine orchard trained in vase system.<\/li>\n<\/ul>\n

    In these plots, different frost protection systems have been installed to compare their performance under real field conditions. These include:<\/p>\n

      \n
    • Conventional high-flow sprinklers.<\/li>\n
    • Low-flow micro-sprinklers.<\/li>\n
    • Pulsed micro-sprinkling systems.<\/li>\n
    • Systems with localized water distribution (strip application) adapted to intensive orchards.<\/li>\n<\/ul>\n

       <\/p>\n

      \"\"<\/p>\n

      \"\"<\/p>\n

      These systems operate with different water application rates, allowing their efficiency to be assessed under various agronomic conditions.<\/p>\n<\/section>\n

       <\/p>\n

      \n

      Actions and impact<\/span><\/h4>\n

      Several actions have been carried out in the pilot plots for the implementation and evaluation of frost protection systems, including:<\/p>\n

        \n
      • Installation of the water distribution network (pipes, connections and fixing systems).<\/li>\n
      • Implementation of different types of micro-sprinklers adapted to each crop and planting layout.<\/li>\n
      • Start-up of the pumping and automation system.<\/li>\n
      • Execution of associated civil works, such as trench digging and infrastructure assembly.<\/li>\n<\/ul>\n

        A monitoring system has also been implemented to analyse the thermal behaviour of the crop during frost events and evaluate the performance of the different solutions under real field conditions.<\/p>\n

        This experience will allow:<\/strong><\/p>\n

          \n
        • Evaluating the effectiveness of micro-sprinkling systems under real conditions.<\/li>\n
        • Reducing the risk of economic losses associated with frost.<\/li>\n
        • Generating technical knowledge transferable to the agricultural sector.<\/li>\n
        • Promoting the adoption of more efficient solutions in terms of water and energy use.<\/li>\n<\/ul>\n

          In addition, the results will contribute to their application in other regions of the Sudoe area, promoting climate change adaptation strategies based on sustainable and resilient technologies.<\/p>\n

           <\/p>\n<\/section>\n","protected":false},"excerpt":{"rendered":"

          The pilot trial developed in Lleida (Mollerussa and Gimenells) evaluates micro-sprinkler systems for frost protection in fruit crops. Different technologies are compared under real field conditions to improve their design, management and efficiency. 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