Fertigation Control System on Smart Aeroponics using Sugeno's Fuzzy Logic Method

Aeroponics is a farming technique of growing plants by empowering the air. In this technique, the roots of the plants will be hung and sprayed with a nutrient solution at regular intervals. Therefore, the fertigation process must be carried out optimally so that plants can grow well. Additionally, the temperature and humidity of the plant environment are also some important parameters to be maintained. Consequently, an automatic fertigation system is needed to maintain the temperature and humidity of the environment. In this study, the Sugeno fuzzy logic method is used in the automatic fertigation process to determine the duration of watering according to the temperature and humidity of the environment. Based on the test results, the system can reach the set point temperature of 28°C and 90% humidity within 54 seconds. The duration of watering using fuzzy logic calculations on the system is also compared with simulation results of Matlab software and obtained an average error of 0.02%. Tests on lettuce during the 10-day planting period show that the plants are able to grow well in the aeroponic system with an average height growth rate of 7.3 cm.

I. Introduction

Agricultural commodities are the largest source of Indonesian people's consumption so that the demand for agricultural products is quite high. Being in a strategic area and having a tropical climate should be a distinct advantage for Indonesia, especially in agriculture. However, Indonesia's agricultural output has not been maximized. One of the causes of low agricultural yields is the decrease in agricultural land every year due to the shift of land function into settlements [1].