Chestnut trees were widely planted in China before B.C. and have long been eaten. A large number of chestnut trees grow in the mountainous regions of Beijing, Tangshan and Chengde, producing chestnuts of excellent quality. Because chestnuts produced in these areas used to be exported from the port of Tianjin, they were named Tianjin sweet chestnuts and were mainly exported to Japan, the Philippines, Hong Kong and Macao.
Chestnut gardens should choose well-drained sandy loam soil. Be careful not to plant in places where the soil is saline, low humidity and windy. To open a cereal garden in hilly areas, you should choose a near-hill area with gentle terrain and thick soil, and then gradually expand to areas with poorer conditions.
Chestnut spreads pollen mainly through the wind, but due to the phenomenon of heterozygous flowers and autoflowering, individual varieties often produce empty buds due to poor pollination. Therefore, the new chestnut garden must be prepared for 10% of the pollinating trees.
Reasonable fertilization is an important foundation for high yield in chestnut gardens. The base fertilizer should be soil mixture fertilizer, so as to improve the soil, improve the soil's ability to retain fertilizer and water, and provide comprehensive nutrients. The best application time for the autumn after the fruit picking, when the temperature is high, the fertilizer is easy to decompose, at the same time this period is also in the new root generation period, is conducive to the absorption, thus promoting the accumulation of tree nutrients, the next year, the female flowers of the differentiation of a very good role.