Watering from walnut sapling to mature tree is one of the most critical steps to ensure healthy growth and high yield. Properly planned irrigation supports root development, increases fruit production, and protects trees during drought periods.

First Watering After Planting

Watering immediately after planting is crucial for the sapling to adapt to its new environment. The first watering ensures that the roots establish themselves in the soil quickly. On the planting day, approximately 20-30 liters of water should be applied to the root zone of each sapling.

Watering in the Early Years

In the first two years, the root system is not yet fully developed, so watering must be done at regular intervals. During this period:

• Saplings should be watered once a week, and the frequency should be increased during hot summer months.
• Ensure that the soil is moist to a depth of 50-60 cm during each watering.
• Avoid overwatering to prevent waterlogging.

Controlled watering encourages the roots to grow deeper, enhancing the sapling's resilience.

Watering During the Fruit-Bearing Period

Walnut trees generally start bearing fruit in their 4th or 5th year. During this phase, irrigation directly impacts the quantity and quality of the yield. Key considerations include:

• During fruit formation, the water demand increases, and watering frequency should be adjusted accordingly.
• In dry periods, deep watering twice a week is recommended.
• Maintain consistent soil moisture while avoiding overwatering.

Watering Mature Trees

Watering mature walnut trees should align with the advanced root system. Key points include:

• Regular irrigation is necessary during low rainfall periods.
• Reduce water application before harvesting to facilitate nut drying.
• Watering should be evenly distributed across the root zone of the tree.

Drip irrigation systems are highly effective for mature walnut trees, ensuring water efficiency and targeted delivery to the root zone.

Avoiding Common Watering Mistakes

Improper watering practices can negatively affect the health and productivity of walnut trees. Common mistakes include:

• Overwatering can cause root rot.
• Insufficient watering hinders growth and reduces yield.
• Improper watering techniques may lead to soil compaction and water loss.

By avoiding these mistakes, you can ensure the long-term health and productivity of your walnut trees.

In conclusion, regular and proper watering is vital for maximizing yield and ensuring healthy development in walnut trees. By following this guide, you can unlock the full potential of your walnut orchard.