Chestnuts should be planted in sandy loam soil with low water levels and good drainage. When planting, we should mainly use locally selected and excellent varieties, such as Guoche No. 2, Chenguo No. 1, etc., and we can also introduce Shifeng, Jinfeng, Haifeng and other varieties appropriately. Chestnut trees mainly rely on wind to spread pollen, so a new chestnut orchard must contain 10% pollinating trees. The base fertilizer for chestnuts should be mainly soil fertilizer, which can improve the soil and improve the soil's fertilizer and water retention capacity.
1. Chestnut planting technology and management
1. Chestnut planting technology
(1) The soil for chestnut planting should be selected with low groundwater level and good drainage. Sandy soil. They cannot be planted in places with low humidity, easy waterlogging, and strong winds. If chestnuts are planted in hilly areas, they should choose mountainous areas with gentle terrain and thick soil.
(2) The varieties of chestnuts must be excellent, such as Guoche No. 2, Chenguo No. 1, etc. Shifeng, Jinfeng, Haifeng and Qingmaoruan can be introduced appropriately. Thorn, Chushuhong and other varieties. Moreover, according to different food requirements, roasted chestnut varieties should be mainly used for planting, and vegetable chestnut varieties should be planted appropriately.
(3) Chestnut trees mainly rely on wind to spread pollen, but chestnut trees have heterosexual male and female flowers and self-fertilization, so too single varieties will result in poor pollination. There is a phenomenon of empty buds, so when building a chestnut orchard, 10% of pollinating trees must be prepared.
2. Chestnut management
(1) The base fertilizer for chestnuts must be mainly soil fertilizer, which can not only improve the soil, but also improve soil fertilizer and water retention. ability, and can also provide more comprehensive nutritional elements. The application time is mainly after picking the fruits, because the temperature at this stage is high and the fertilizer is easy to rot.
(2) Chestnut tree pruning is divided into winter pruning and summer pruning. Winter pruning is mainly carried out from after the leaves fall to before the second spring. Spring pruning can promote the growth of millet trees and the formation of female flowers; summer pruning mainly refers to budding, topping, detasseling and thinning branches during the growing season. The function of summer pruning is Promote branching, increase female flowers, improve seed setting rate and single grain weight.
(3) When the new shoot grows to 30 cm, the top of the new shoot must be removed. The purpose is to promote branch growth and early fruiting, and it is enough to top off 2-3 times a year.
2. How long does it take for chestnut trees to bear fruit
1. Generally, grafted chestnut trees will start to bear fruit in about 2-3 years, and solid chestnut trees will start to bear fruit in about 5-5 years. It takes about 8 years for the chestnut tree to bear fruit, and it takes about 20 years for the chestnut tree to enter its peak fruiting period.
2. Chestnut needs to be fertilized three times a year. The first fertilization is after sowing, which is beneficial to its growth; the second fertilization is around August, which can promote the growth of fruit grains. , improve the yield and quality of chestnuts; the third fertilization is mainly to supplement chestnut elements. When nitrogen, phosphorus, and potassium fertilizers are the main fertilizers, it is beneficial to improve fertilizer efficiency.