The cultivation of walnut trees
Appropriate Cultivation:
1. Walnuts are widely cultivated across China due to their strong adaptability. They are grown in over 20 provinces and autonomous regions, spanning both northern and southern areas. This extensive distribution is a result of the tree's resilience to different environmental conditions.
2. Walnuts are sun-loving plants, making them ideal for cultivation on sunny slopes or flat land. For optimal growth, they require at least 2000 hours of annual sunlight. If sunlight falls below 1000 hours, the nuts may not develop properly. To maximize yield, it's important to manage planting density and use a high-yield tree shape. Pruning should be done regularly to improve air circulation and light penetration within the canopy, ensuring healthy growth.
3. As a deep-rooted species, walnuts can thrive in various soil types, including hilly, mountainous, or flat lands, as long as the soil layer is more than one meter deep. They prefer loose, well-drained soils rich in organic matter and slightly alkaline with calcium content. These conditions promote vigorous growth and high-quality nut production.
4. Walnuts are relatively drought-tolerant but sensitive to extreme moisture levels. Both excessive drought and waterlogging can negatively affect their growth and the hardness of the nuts. In mountainous areas, soil and water conservation measures are essential, while in flatlands, proper drainage systems must be established to prevent water accumulation. By addressing these factors, farmers can ensure better yields and healthier walnut trees.
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