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Wuxi Field Cultivation Management Technology
1. The site selection should be a sunny, fertile, deep, well-drained, and moist area with neutral to acidic soil. This environment ensures optimal growth and health for the plants.
2. Methods of Propagation
(1) Seed Propagation: Seeds are typically sown at the end of autumn or early spring. They should be planted at a spacing of 20-25 cm, with 20-30 seeds per 100 cm. The soil covering depth should be around 2-3 cm, and it's recommended to use grass cover to help retain moisture. To improve germination rates, the seeds should be soaked in wood ash for 24 hours before sowing to remove the waxy coating. The sowing rate is approximately 150 kg per hectare. When planting in spring, sprouting usually occurs within 20-30 days after sowing.
(2) Grafting and Budding: To preserve high-quality varieties and encourage early fruiting, grafting is a commonly used method. Rootstocks are selected from healthy seedlings, and the scions can be joined using techniques such as cutting, cleft grafting, or bark grafting, or through budding. The survival rate of grafted plants is generally around 90%. If planting in spring, it's important to take a soil ball when transplanting larger seedlings.
3. Post-Planting Management: After planting, seedlings should be thinned out in batches, keeping about 8-10 plants every 100 cm. Regular top-dressing and weeding are essential for healthy growth. Within one year, seedlings can grow to a height of 60-100 cm and are ready for transplanting in early spring of the following year. When raising seedlings, dig holes that are 40-50 cm deep, being careful not to damage the main roots. For vigorous seedlings, the recommended spacing is 300 cm by 250 cm. After planting, regular watering, proper care, and forest management should be carried out for 3-4 years to ensure strong development.