Campanulaceae Field Management 1. Seedling Management
After sowing seeds in autumn, it's important to keep the soil moist and provide a light layer of diluted manure water to promote early growth. When seedlings reach 3–5 cm in height, gently loosen the soil and remove any weeds to ensure proper air circulation and reduce competition for nutrients. In late November, after frost has slightly wilted the plants, apply a layer of mixed human and animal manure, followed by a covering of soil or organic fertilizer. This helps protect the roots during winter. In early spring, around February and March, repeat the process to encourage new growth. For spring-sown seeds, similar practices should be followed to ensure healthy emergence.
2. Weeding and Soil Cultivation
Regular weeding is essential during the early stages of seedling growth. Manual removal of weeds is recommended to avoid damaging the young plants. Each time you weed, combine it with soil loosening to maintain good aeration and moisture retention. The soil should be loosened shallowly to prevent root damage. It’s best to cultivate when the soil is slightly dry. Avoid cultivating after the plants have been ridged, as this can harm their development.
3. Fertilization Practices
In addition to base fertilizers applied during planting, multiple top-dressings are necessary throughout the growing season. Once seedlings are established, apply diluted manure water. When the seedlings reach about 15 cm, apply another round of fertilizer—such as 20 kg of superphosphate and 12 kg of ammonium sulfate per mu—between the rows. Loosen the soil and water if needed. During flowering in June and July, applying a diluted manure solution can help support plant growth. After the plants die back in winter, mix in wood ash or compost to enrich the soil. In the second year, apply seedlings and manure in spring to boost growth. Before flowering, apply 10 kg of urea and 25 kg of superphosphate to enhance stem and leaf development, providing nutrients for future root growth.
4. Flowering and Bud Thinning
Balloonflower (Platycodon grandiflorus) requires careful management during its long flowering period, which lasts up to three months. Flowering consumes a lot of energy, which can hinder root development. Removing flower buds manually helps improve root quality and yield. However, this process is labor-intensive, as new buds often sprout quickly after removal. To make it more efficient, spraying 0.075% to 0.1% ethephon on the flower buds at full bloom can effectively inhibit flowering. Each acre requires 75–100 kg of the solution. This method is cost-effective, safe, and highly efficient. Additionally, two-year-old plants tend to lodge before flowering. To prevent this, avoid excessive nitrogen fertilizer in spring and spray Chlorella at 500 times dilution to strengthen the stems and reduce lodging risk.
5. Root Development Control
For high-quality Campanulaceae crops, straight and solid roots are preferred. However, many plants develop multiple roots, which can lower product quality. According to observations by Mr. Li Daoji from Anhui, if more than one seedling grows from a single bulb, the root development may be stunted. On the other hand, if only one plant grows per bulb, root formation is better. Therefore, it's crucial to remove excess seedlings early, especially in the second spring when multiple shoots often appear. Keep only one strong seedling per plant. Apply phosphate fertilizer while limiting nitrogen and potassium to prevent leggy growth. If needed, pinching the tops can reduce nutrient consumption and promote healthy root development.
Valentines Gummies,Valentine Gummy Candy,Valentine'S Day Gummies,Valentine'S Day Gummy Candy
Montreal Shantou Food Co., Ltd , https://www.montrealsnack.com