A Study on the Drip Irrigation System Based on CWIS for Open-Field Fruit Trees

In recent years, interest in and investment in smart farms has continued to grow. One of the most important management elements of these smart farms is irrigation. Saving agricultural water used for irrigation is a method that brings excellent environmental and economic effects. In this paper, a drip irrigation system based on CWSI is designed to save agricultural water and improve crop growth environment through more accurate irrigation. To determine the timing of irrigation, CWSI was calculated using data collected through AWS and infrared cameras, and a random forest model was created to determine the amount and timing of irrigation to design a drip irrigation system. To evaluate the performance of the CWSI-based drip irrigation system for open field fruit crops, the irrigation efficiency of the existing soil condition-based irrigation system was analyzed based on the change in sap flow volume, and as a result, it was confirmed that the result of this study saves water and meets crop irrigation requirements than the existing soil condition-based irrigation system. If the results of this study are reflected in actual farms, it is expected that it will help reduce farm production costs and improve crop growth conditions through saving agricultural water provided for crop growth.