In recent years, the practice and exploration of Shaanxi Weinan Flower Promotion King Technology Co., Ltd. found that a new type of ring cutting technology was successfully applied to walnut trees, which made the walnut trees grow well, with thick branches and rich nutrition, and the resistance to adverse external environment was obviously enhanced after winter. Usage: Use a blunt blade to cut an incision with a width of about 1-2 mm on the smooth trunk, reaching the xylem, and use a brush to apply cationic activator Wang Cuihua No.2 on the slit, so that the medicine can enter the slit, control the new shoots, promote flowering, regulate nutrition, improve the fruit setting rate, improve the disease resistance of fruit trees and make the trees flourish. (Bud)