Automated irrigation triggered by soil moisture for four
days are shown in Fig. 11; when the soil moisture value fell
below the threshold level of 5.0% VWC, the irrigation system
was activated for 35 min according to IA-3, whereas the soil
temperature remained below the threshold level. Similarly,
Fig. 12 shows automated irrigation triggered by soil temperature; when the temperature was above 30 °C, the irrigation
system was activated for 5 min according to IA-4, whereas
the soil moisture remained above the threshold level.