Watering in spring is the period when chestnut organs are concentrated. Watering before budding in early spring can promote the formation of female flowers and promote the growth of branches. When most chestnuts are planted in mountainous and hilly areas, the soil layer is thin and the soil water retention performance is poor, so they need to be covered with grass. In the process of budding, remove the redundant branches at the middle and lower parts of strong branches, leaving 4-5 large branches and 2-3 medium branches. Wipe the bottom, top and thickness of the bud separately. After topping and grafting for two years, the inner branches are obviously elongated, which will inhibit the growth of other branches and affect the formation of crown. After the spring buds begin to grow, they must be treated in time. When the length of new branches is 20cm, the length of new branches is 1-2cm. When the length of the second and Third branches is 30cm, the length of the new branch is 7-10CM. In this way, young trees can grow more mother branches and increase the number of female flowers. Without manual control, the ratio of male and female flowers is usually 20-50:1. Too many male flowers will consume a lot of nutrients and reduce the yield. Therefore, when the male inflorescence is 2 cm long, most of the inflorescences should be removed, leaving only 3-5 inflorescences at the top of the new shoot, so the ratio of male and female flowers should be about 5:1. In addition, the application of potassium fertilizer is also conducive to inhibiting the excessive growth of male inflorescences. In addition to the conventional nitrogen, phosphorus and potassium fertilizers, the application of boron and zinc fertilizers should also be emphasized. When female flowers appear, spray a mixture of 0.2% borax and 0.2% zinc sulfate every 7 days.
The above is how to manage Chinese chestnut in spring. Hebei Yanshanhong Food Co., Ltd., founded in September 2000, is a comprehensive production enterprise specializing in the R & D, processing, production and sales of Chinese chestnut, peanut and other agricultural and sideline products. The company covers an area of 20000 square meters and a construction area of 6000 square meters, including food processing workshops, low-temperature warehouses, quick-frozen warehouses and high-temperature warehouses. If you have any need, please contact us!