In the spring, chestnut flower bud differentiation, spring bud sprouting, and flowering period are important. In order to ensure an increase in yield, it is necessary to strengthen management. Watering Spring is the time when each organ of chestnut is concentrated. The metabolism and nutrient operation need water. In early spring, irrigation can promote the formation of female flowers, which is conducive to the growth of branches. The floor chestnut is planted in mountainous areas and hilly areas. The soil layer is thin, and the protection performance is poor. When the buds sprouted, the excessive buds in the lower part of the strong branches were wiped off, leaving 4 to 5 large buds and 2 to 3 buds in the middle branches. The buds are removed according to the principle of staying and leaving. After two years of grafting, some of the shoots are obviously long, which will inhibit the growth of other shoots and affect the crown molding. Therefore, after the new shoots begin to grow in the spring, the shoots must be managed in a timely manner. When the new shoot is 20 centimeters long, it takes 1 to 2 centimeters from the tip; when the second and third shoots are 30 centimeters long, it takes 7 to 10 centimeters from the tip. This will allow the saplings to form more mother trees and increase the number of female flowers. In the case of emasculation without artificial control, the ratio of chestnut male flowers to female flowers is usually 20 to 50:1. Too many male flowers consume a large amount of nutrients and reduce the yield. Therefore, most male inflorescences should be removed at a length of 2 cm, leaving only 3 to 5 inflorescences at the top of the new shoots, keeping the male and female flowers at a ratio of about 5:1. In addition, the increase of potassium fertilizer is also conducive to inhibiting the growth of male inflorescence. Fertilizer chestnut to high yield, in addition to the conventional application of nitrogen, phosphorus and potassium, the emphasis is to apply boron and zinc fertilizer. Control the spraying of 0.2% borax and 0.2% zinc sulfate in the presence of female inflorescence. Spray once every 7 days for 2 to 3 times.