Journal
SENSORS
Volume 21, Issue 8, Pages -Publisher
MDPI
DOI: 10.3390/s21082656
Keywords
digital agriculture; precision agriculture; IoT; Arduino; LoRa; adaptative modeling; DSS decision support system
Funding
- Italian Ministry of Agricultural, Food, Forestry and Tourism Policies (MiPAAFT) [DM 36503.7305.2018]
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This study developed an open source soil moisture LoRa device for precision irrigation management, generating adaptive predictive models to optimize irrigation practices and save water and electricity in field conditions.
Precision irrigation represents those strategies aiming to feed the plant needs following the soil's spatial and temporal characteristics. Such a differential irrigation requires a different approach and equipment with regard to conventional irrigation to reduce the environmental impact and the resources use while maximizing the production and thus profitability. This study described the development of an open source soil moisture LoRa (long-range) device and analysis of the data collected and updated directly in the field (i.e., weather station and ground sensor). The work produced adaptive supervised predictive models to optimize the management of agricultural precision irrigation practices and for an effective calibration of other agronomic interventions. These approaches are defined as adaptive because they self-learn with the acquisition of new data, updating the on-the-go model over time. The location chosen for the experimental setup is a cultivated area in the municipality of Tenna (Trentino, Alto Adige region, Italy), and the experiment was conducted on two different apple varieties during summer 2019. The adaptative partial least squares time-lag time-series modeling, in operative field conditions, was a posteriori applied in the consortium for 78 days during the dry season, producing total savings of 255 mm of irrigated water and 44,000 kW of electricity, equal to 10.82%.
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