Hazelnut planting management:

1. Land preparation and digging holes: Level the land before planting and remove miscellaneous trees, weeds, stones and other objects. The land must be plowed to a depth of more than 20 cm. The specifications of the planting hole are 70 to 100 cm in diameter and 60 to 70 cm in depth. When digging a planting hole, the surface layer of mature soil should be separated from the subsoil. When backfilling, the subsoil should be mixed with organic fertilizer and evenly mixed before returning to the lower half of the planting hole. The surface layer of mature soil should then be returned to the upper part of the planting hole. It is best to dig holes during land preparation. Planting is completed in the fall of the year before planting.

2. Planting time: In order to improve the survival rate, autumn planting is recommended. Generally from October to December, the best time for the Yellow River and Yangtze River basins is from late February to early March, and no later than mid-March. Hazel colonization must be ended before bud break. If the seedlings have already sprouted and are being planted, the survival rate will be reduced.

3. Planting method: Place the seedlings into the prepared planting holes according to the variety planting plan, so that the roots can stretch, and at the same time, pay attention to the calibration to ensure that the roots are closely integrated with the soil. Then fill in moist soil. When half of the filling is done, gently lift the seedlings upwards and firm them down while filling the soil so that the roots and soil are closely integrated. Then build an irrigation tree tray around the seedlings, with a diameter of up to 1 cm, to facilitate irrigation and water storage. Immediately after planting, water should be irrigated, and it is required to irrigate thoroughly. After the water seeps in, cover the tree tray with mulch to moisturize and increase temperature, promote root activity of the seedlings, and improve the survival rate.

4. Light management: Hazel is a light-loving plant and is best cultivated in a leeward and sunny location. In a warm and sunny place, high yields will come early. However, it can be cultivated on any mountain slope below 15°. Annual sunlight exposure of more than 2,000 hours can meet the requirements, and the optimal sunlight exposure is more than 2,200 hours. If the annual light hours are less than 2000 hours, germination and differentiation will be poor.

5. Temperature management: Hazel can withstand low temperatures of -33°C in winter and is cultivated in areas with annual average temperatures above 6.5 to 7°C. Safe Cultivation North Line can be cultivated in the northern temperature conditions of Liaoning. Therefore, it is suitable for cultivation when the winter is not cold (not lower than -30℃), the maximum temperature in summer is not higher than 38℃, and the annual average temperature is below 15℃. The growth period is year-round. The number of days with temperature ≧5℃ exceeds 190 days.

6. Humidity management: It can be cultivated under the condition of annual precipitation of 500-1300 mm. The most suitable annual precipitation is 700-1000 mm. If the annual precipitation is less than 500 mm, irrigation conditions are required. When the precipitation is higher than 1000 mm, drainage conditions are required. Snowfall and snow accumulation in northern winter are conducive to hazel trees overwintering. Precipitation and high air humidity in winter and spring are also conducive to overwintering and prevent branches from drying out. Before planting, you should check the soil moisture of the planting hole. If the humidity is suitable, you can plant. If there are immediate irrigation conditions, you can plant if the soil is slightly dry.

Extended information:

Hazelnut planting conditions:

1. Temperature: Different types of hazelnut trees have different temperature requirements. European hazelnut likes a warm and humid climate. The suitable average temperature is 13~15℃, the absolute minimum is -10℃, and the extreme high temperature is 38℃. Ping-ou hybrids are more cold-resistant than European hazelnuts and are suitable for cultivation in areas with average annual temperatures of 7.5 to 13°C and the lowest temperature reaching -30°C.

2. Light: Hazelnut trees are light-loving plants and generally require more than 2100 hours of sunshine per year. Otherwise, there will be few flower buds and low yield.

3. Soil: Hazelnut trees like to grow on fertile, well-ventilated sandy loam soil, especially Ping-European hybrids, which have high soil requirements, such as dry sandy soil, heavy clay soil, swampland, and salty soil. It is not suitable to establish hazel orchards in low-lying or low-lying areas. Pingu hybrids require a soil pH of 6.5 to 7.5, while Eucalyptus requires a soil pH of 5.5 to 7.

Reference: Baidu Encyclopedia - Hazelnut