Suitable places for planting chestnut should first grow at a temperature of 8 to 22 degrees all the year round, which is conducive to the flowering and fruiting of chestnut trees. Moreover, chestnuts like to see sufficient sunlight, and the annual precipitation in the planting area should be between 600-1400 mm.
Because chestnut has a strong demand for light, it is prone to the situation that the crown of the tree extends quickly, the inner cavity is exposed, the surface results and the yield is low. Insufficient light leads to the decrease of photosynthetic products, which leads to serious physiological fruit drop and low yield. Adequate illumination is beneficial to improve the protein content, flavor and yield of pulp.
Causes of flowering and fruitlessness of chestnut
First, the variety is not good. There are many kinds of chestnuts. If there are good varieties, there will be poor varieties, and some varieties will suffer more difficulties.
Second, the soil is not suitable for planting. Chestnut likes slightly acidic soil with ph below 7, such as gneiss sandy soil with good permeability. If the soil is alkaline, it will lead to no results.
Third, soil drought and water shortage will cause hardening, which will also lead to its failure to bear fruit; Fourth, the nutritional components of chestnut plants are insufficient. There are many male flowers on the tree, but the female flowers don't bear fruit. Small trees have many male flowers, but no female flowers.