Precision Agriculture Science and Technology ISSN:2672-0086(Print) 2713-5632(Online) 정밀농업과학기술

High-quality citrus farming is essential for increasing agricultural production on Jeju Island. Citrus income, which accounts for 56% of the total, has a significant influence on the Jeju economy. However, improving citrus quality has become one of Jeju's most critical agricultural concerns year after year. Although the climate and terrain of Jeju Island are not suitable for agriculture, it has a relatively favorable environment for citrus production. Various smart agriculture initiatives have been introduced to enhance the quality of citrus, but due to cost constraints and a lack of public awareness, they have not been widely adopted. As a result, efforts are still being made to raise public awareness of smart farm technology, develop human resources, and advance the technology. This study provides four key technologies for the production of high-sugar citrus: soil cover cultivation technology, mature tree transplanting and field-based maintenance, non-destructive sugar content monitoring and systematization, and the application of smart farm technology. The major impact of this farming approach is to manage sugar costs and improve fruit color and quality, which is the basis for increasing farmers earnings through the production of high-quality citrus. This article also highlights two leading farmers who are applying these techniques to produce high-quality citrus on their fields. The utility of the technology is analyzed, and future development directions for effective citrus farming are identified through case studies. This research proposed a Jeju-type smart farm system that integrates open fields and greenhouses, using innovative technologies and data-based convergence to enhance high-quality citrus cultivation.