Optimization of Potato Seedling Cultivation in Greenhouse with NPK Sensor-Based IoT Technology
Authors
Ade Ismail , Vipkas Al Hadid Firdaus , Kadek Suarjuna Batubulan , Luqman AffandiDOI:
10.29303/jrpb.v14i1.1210Published:
2026-03-26Issue:
Vol. 14 No. 1 (2026): Jurnal Ilmiah Rekayasa Pertanian dan BiosistemKeywords:
ESP32, greenhouse, IoT, potato, NPK sensorArticles
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Abstract
This study aims to design and implement an Internet of Things (IoT)-based Smart Precision Farming system to optimize potato seedling cultivation through precise and efficient nutrient management. The system is developed using a dual-node ESP32 microcontroller architecture for real-time microclimate data acquisition and soil NPK level monitoring using an industrial-grade sensor with the RS485 Modbus communication protocol. The automated fertigation strategy is implemented using Mamdani Fuzzy Logic integrated with MQTT, Node-RED, and Grafana platforms for data visualization. Technical performance evaluation reveals high system reliability, with a Mean Absolute Percentage Error (MAPE) of 2.62% for the NPK sensor and actuator response latency of <500 ms. Greenhouse implementation proves that transitioning from schedule-based to demand-based fertilization significantly increases fertilizer efficiency by up to 30.3%. This reduction in fertilizer volume does not trigger nutrient deficiency but instead optimally stimulates the agronomic growth of potato seedlings (Sig. < 0.05), indicated by a 15.9% increase in plant height and a 33.3% increase in the number of leaves. The application of this technology offers a concrete and measurable solution to minimize fertilizer waste while improving growth quality in the horticultural seedling phase.
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