Khon Kaen University (KKU), in collaboration with the Office of the Cane and Sugar Board (OCSB), has unveiled an innovative “automatic tractor-mounted sprayer” designed to modernize farming practices for sugarcane and other field crops in Thailand. The project, led by Associate Professor Dr. Supasit Konyai of the Faculty of Engineering, aims to introduce precision agriculture to address key challenges faced by farmers, including labor shortages, high production costs, and health risks from chemical exposure.
This smart farming tool is a direct result of a partnership focused on translating university research into practical, accessible technology. The initiative aligns with KKU’s strategic goals for research, social contribution, and sustainable development.
The sprayer is engineered with several key features tailored for Thai agricultural conditions. Its spray arms can extend 180 degrees and are height-adjustable to adapt to different stages of crop growth. All functions, including arm extension and spraying, are controlled from the driver’s seat, significantly enhancing operator safety by minimizing direct contact with chemicals. Furthermore, the left and right spray arms can be operated independently, allowing for precise application in diverse field topographies.
A crucial design element is its compatibility with the small 25-30 horsepower tractors commonly used by farmers across the country, which eliminates the need for investment in new, larger machinery.
The machine’s specifications include a 200-liter tank, capable of covering approximately 5 rai per fill. It is powered by a standard PTO drive (540 rpm) and comes with two nozzle sizes (1.0 and 1.2 mm) for versatility. It operates efficiently at a speed of 5-10 km/h with a fuel consumption of just 6.5 liters per hour.
To ensure widespread access and adoption, prototypes of the automatic sprayer have been delivered to the four regional Sugarcane and Sugar Industry Promotion Centers in Kanchanaburi, Kamphaeng Phet, Chonburi, and Udon Thani. These centers will allow farmers and other interested parties to study, test, and learn how to adapt the technology for their own operations.
The project directly supports several of the United Nations’ Sustainable Development Goals (SDGs). By reducing labor costs and improving worker safety, it contributes to SDG 8 (Decent Work and Economic Growth). As an innovation that translates academic research into accessible agricultural infrastructure, it aligns with SDG 9 (Industry, Innovation, and Infrastructure). Finally, by enabling the precise application of fertilizers and chemicals, the sprayer promotes more sustainable farming practices and reduces environmental impact, supporting SDG 12 (Responsible Consumption and Production).
