Why did the chestnut tree blossom and not bear fruit?

Why did the chestnut tree blossom and not bear fruit? What caused it? How to solve? Also ask experienced netizens to help introduce the planting network to sort out the blooming and fruiting of chestnut trees and the reasons for falling fruit, which are listed below for netizens' reference. The reason why the Chinese chestnut tree blossoms and does not bear fruit: first, the chestnut tree does not have enough nutrients, the big tree has many male flowers, but the female flowers bear no fruit; the small trees have many male flowers, but no female flowers. Solving measures: strengthen pruning of chestnut trees, increase the application of farm manure, deeply turn and expand holes, and carry out green pressing treatment at the right time. Second, the chestnut orchard soil hardening, drought, into a small old tree. Solution: when the weather is dry, water the chestnut trees. Third, the soil of chestnut orchard is not suitable for planting. Solution: planting Chinese chestnut is suitable for slightly acidic soil with pH below 7, such as gneiss sandy soil with good permeability, but not suitable. The fourth reason is that the variety of chestnut is not good. Solution: for chestnut trees with poor varieties, more than one head should be grafted as soon as possible, and the yield can be restored in the same year. The causes of yellowing and falling of young fruits of chestnut trees are mainly due to poor pollination, special drought or waterlogging, imbalance of trace elements, soil consolidation and so on. Solution: strengthen the balance management of fertilizer and water, do not plant a single variety, apply more farm manure, and supplement the scarce trace elements such as boron, calcium, zinc, manganese and so on. Pruning method of chestnut how to harvest chestnut