Climate Requirements: Hazels can only grow sufficiently to yield large amounts of nuts in moist, temperate climates. The perfect example of such climate is Black Sea region of Turkey. While hazels can be grown in hotter climates which are not as moist, the lack of rainfall warrants constant watering.
Soil Requirements: Hazel roots spread a lot and will not go too deep into the soil, going only as far as 80 centimeters deep in sloped areas. The soil requirements aren’t too steep but as always soil that is rich in nutrients and deep will contribute to the production.
Planting Period: Hazels should be planted between October and the start of spring. In regions with warm winters, October-November, in regions with harsh winters or high altitude February-March, when it will be warm, is advised. The advantage of planting in autumn is being able to replace the trees that aren’t satisfactory before spring, therefore not losing time.
Fertilizers: From the moment hazels are planted, fertilizers are very important in hazelnut production to ensure quality yield and health. To get the desired results, soil must be tested to decide which kinds of fertilizers are required. Hazels normally grow in soil with ph values of 5-7. Values less than this have detrimental effect on growth.Lime can be added to combat acidity and best time to do this would be November and December. Periodically tests must be conducted to see if adding more lime is required.
Lime and phosphorus shouldn’t be added to the soil in the same year. The fertilizers with nitrogen should be sprinkled 50-60 centimeters away from the trunk under the leaves and mixed with the 3-5 centimeters of depth in soil. This will help pest control as well as proper distribution of fertilizer.
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