Effects of a TDS Sensor-Based Nutrient Automation System on Leaf Area and Plant Height of Lettuce (Lacctuca sativa L.) in Hidroponic Cultivation
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Abstract
Manual nutrient monitoring in hydroponic cultivation systems is considered inefficient and prone to producing inconsistent data, necessitating sensor-based automation systems to maintain the stability of nutrient solution concentration. This study aims to analyze the effect of a Total Dissolved Solids (TDS) sensor-based nutrient automation system on leaf area and plant height of lettuce (Lactuca sativa L.) in a hydroponic cultivation system. This study employed an experimental approach comparing two groups of lettuce plants: a treatment group cultivated using the TDS sensor-based automation system and a control group cultivated through conventional manual monitoring. Leaf area and plant height were measured at harvest time four weeks after planting. The results demonstrated that the automation system exerted a significant positive effect on both growth parameters. The mean leaf area increased by 64.24% from 260.18 cm² to 427.33 cm², and the mean plant height increased by 19.71% from 22.022 cm to 26.355 cm. These findings indicate that the TDS sensor-based nutrient automation system effectively maintained nutrient solution concentration stability, thereby supporting optimal vegetative growth of hydroponic lettuce compared to manual monitoring methods.
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