Hazelnuts have strong cold resistance, and the average annual temperature is about 7.5°C. It can safely pass through the winter in the northeast, and winter temperatures can normally overwinter at -30°C. Hazel likes a humid climate. It is usually appropriate to plant in areas with an annual rainfall of 700-1200 mm. It is more light, and sufficient light can promote its growth and development. Hazelnuts have strong adaptability to soil and can grow on sand, loam, clay and light saline alkali lands. Planting hazel does not require high topography, but it will be more conducive to its growth and development at lower elevations. Generally, it is better to plant in land below 750 meters above sea level in northern China, but it is usually in the mountains. Gentle slopes and terraces are more suitable. A steep slope is not conducive to the management of Hazel Garden. Hazelnuts are widely distributed in China. In addition to Xinjiang, Fujian, Taiwan, Guangdong, and Guangxi, the whole country is cultivated, with the largest scale of planting in the three northeastern provinces. Viruses and bacteria are everywhere. Preventing them in advance is the best way to reduce the risk of infection. Wearing a mask and washing hands frequently are crucial. The new type of coronavirus has the characteristics of contact transmission, and the fact that the virus exists on the doorknob of patients with pneumonia has also shown the necessity of paying attention to hand hygiene and wearing disposable protective gloves.
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