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The design, execution, and performance evaluation of a hydroponic lettuce production system in a household greenhouse show its potential for sustainable urban agriculture compared to soil-based systems. To maintain crop quality, the system adjusts pH, TDS, and temperature with sensors. Data from sensors every 10 min and aggregated hourly and daily provided valuable trend and pattern analysis. With maximum and minimum temperatures of 21.69 \(^{\circ }\) C and 13.71 \(^{\circ }\) C, the hydroponic system maintained optimal lettuce growth temperatures. The important relationship between pH and nutrition absorption was highlighted by closely managing pH values from 4.50 to 8.50. Nutrition content was 800–1400 PPM, and lower pH improved nutrition absorption. Nutrient absorption is enhanced in hydroponic systems, boosting plant growth and health. Compared to soil-grown lettuce, lettuce grew 3 cm taller and 2–3 mm faster daily. The study highlights the system’s reliability in sustaining ideal growth conditions and its commercial scalability and economic feasibility. These findings make hydroponic systems a viable option for urban agriculture, improving efficiency and sustainability.

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Optimizing Hydroponic Lettuce Cultivation: Design, Performance Evaluation, and Sustainability in Household Greenhouses

  • 会议论文

  • 发表日期：

    2026年

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  • Fernando Lozano,
  • Marcelo Moya,
  • Guillermo Mosquera

摘要

The design, execution, and performance evaluation of a hydroponic lettuce production system in a household greenhouse show its potential for sustainable urban agriculture compared to soil-based systems. To maintain crop quality, the system adjusts pH, TDS, and temperature with sensors. Data from sensors every 10 min and aggregated hourly and daily provided valuable trend and pattern analysis. With maximum and minimum temperatures of 21.69 \(^{\circ }\) C and 13.71 \(^{\circ }\) C, the hydroponic system maintained optimal lettuce growth temperatures. The important relationship between pH and nutrition absorption was highlighted by closely managing pH values from 4.50 to 8.50. Nutrition content was 800–1400 PPM, and lower pH improved nutrition absorption. Nutrient absorption is enhanced in hydroponic systems, boosting plant growth and health. Compared to soil-grown lettuce, lettuce grew 3 cm taller and 2–3 mm faster daily. The study highlights the system’s reliability in sustaining ideal growth conditions and its commercial scalability and economic feasibility. These findings make hydroponic systems a viable option for urban agriculture, improving efficiency and sustainability.