① Requirements for soil: First of all, as long as the grass can grow well, the land with a soil layer thickness of more than 40 cm is suitable for planting. Because hazelnut is a kind of plant with strong respiration, it is the most waterlogged depression and the heavy saline-alkali land with PH value over 8. The PH value should be between 5.5 and 8. Therefore, black soil, sandy loam, chernozem, albic soil, cinnamon soil, yellow clay and red loam are all suitable. Land with soil thickness less than 40 cm can also be planted after improvement and more fertilization. If there are wild hazelnuts in the area, don't worry! Heterosis makes Corylus heterophylla cross between Europe and China have completely wild characteristics.

② Terrain requirements: Flat land, sloping land and gentle slope are all suitable for planting. Because of the height difference and good lighting and ventilation, the effect will be good as long as the soil and fertilizer management is in place. Because Corylus heterophylla is a light-proof plant, if the slope is above 15 degrees, it is best to choose sunny slope or semi-cloudy and semi-sunny slope. The slope is within 15 degrees, and any slope direction is suitable for planting. In order to facilitate future production management, it is best to avoid steep slopes that small tractors can't climb.

③ Requirements for latitude (temperature): The latitude is required to be between 32 degrees north latitude and 46 degrees north latitude. (You can log in to Baidu for query, for example, enter "Jiamusi Latitude", and the result will be given immediately. ) Corylus heterophylla is very cold-resistant and can resist the cold of -35℃. The area south of 32 degrees north latitude is not suitable for planting because of the lack of dormancy period. Sichuan, Yunnan and Guizhou are also suitable for planting because of their high altitude and cool temperature. Because in Yunnan-Guizhou Plateau, there are also wild hazelnuts.

④ Requirements for rainfall: The annual rainfall should be above 500mm. Pumping wells for irrigation can also be planted in areas below 500 mm or in rivers, lakes and reservoirs nearby. Corylus heterophylla likes humid climate, and it is easy to produce high yield when planted near lakes, rivers and large reservoirs. It is snowy in winter in northern China, which is conducive to the overwintering of Corylus heterophylla.

⑤ sunshine hours requirements: the annual sunshine hours should be more than 2000 hours. (You can log on to Baidu to make an inquiry, such as entering "sunshine hours in Jiamusi", and the result will be given immediately. ) The annual sunshine time in most parts of Heilongjiang Province is more than 2,000 hours, especially in Inner Mongolia and Jilin. As mentioned above, Corylus heterophylla is particularly fond of light, and it is planted in Xinjiang and Gansu where sunshine lasts for a long time, and it shows extraordinary performance in yield and fruit quality.

⑥ Requirements for wind: When choosing the garden site, avoid the tuyere, which is beneficial to the result. Don't plant in areas with little rain and windy sand! For example, Chaoyang City in Liaoning Province, Baicheng City in Jilin Province, Tongliao City in Inner Mongolia and Qiqihar City in Heilongjiang Province are not suitable for planting. )