Core Viewpoint - The introduction of the targeted root precision spraying machine by Nanjing Forestry University has significantly improved the efficiency and cost-effectiveness of orange farming in Jiangxi province, leading to higher yields and better quality oranges [1][3]. Group 1: Technology and Innovation - The targeted root precision spraying machine was developed by the "Root Treatment" team at Nanjing Forestry University, aiming to deliver pesticides directly to root disease sites [3]. - The technology involves a three-step process: precise diagnosis, targeted spraying, and cost control, which enhances the effectiveness of pesticide application [3]. - The machine has increased the disease cure rate to 90% and saved over 1.15 million yuan annually in costs for the farm [1][3]. Group 2: Impact on Farming - The implementation of this technology has transformed the 1,000-acre organic navel orange plantation in Jiangxi, which previously faced challenges such as low yield and high costs due to root diseases [1]. - Farmers have reported improved orange quality, with uniform size and higher sweetness, leading to direct purchases from merchants [3]. - The technology is currently being utilized in 28 orchards across five provinces in China, with plans for further expansion to assist more farmers [3].