Fertilization requirements for lily of the valley
As an elegant bell dancer in the courtyard, lily of the valley is deeply loved by gardening enthusiasts for its snow-white flowers and fresh aroma. To achieve healthy growth of lily of the valley, scientific fertilization and watering management are particularly critical. This article will analyze these two core maintenance links in detail from a professional perspective to help you create a flowery lily garden. 1. Fertilization cycle management of lily of the valley 1. Nutrient reserves during the germination period In early spring and March, when the soil temperature rises to 8 ° C, lily of the valley begins to germinate new buds. At this time, decomposed sheep manure (1- 2 kg per square meter) combined with high-phosphorus compound fertilizer (NPK5 -10-5) should be applied, which can effectively promote root development. It is recommended to use a circular ditch application method, with ditching for fertilizer 15cm away from the base of the plant and then covering it with soil. 2. During the growth period, dynamic topdressing is carried out from April to June. During the vigorous growth period, a "3+2" fertilization strategy is adopted: balanced compound fertilizer (NPK20 -20-20) is applied to the roots every 3 weeks, and 0.2% potassium dihydrogen phosphate solution is sprayed on the leaves every 2 weeks. Pay special attention to the need to apply calcium and magnesium fertilizers after rain to prevent leaf tips from turning yellow. 3. Use a high-potassium formula (NPK 10-15-30) for nutritional control during flowering and budding periods, combined with weekly watering of seaweed extract. After the flowers wither, apply fish protein organic fertilizer (diluted 500 times) in time to repair the plants. At this time, excessive nitrogen fertilizer should be strictly avoided leading to excessive nutrient growth. 2. Precise moisture control of lily of the valley 1. Seasonal watering strategy Maintain the principle of "seeing dry, seeing wet" in spring and autumn, and pour water thoroughly when the surface soil is 2 cm dry. In summer, the "double watering method in the morning and dusk" is adopted: the watering amount in the morning accounts for 70% of the daily total, and the replenishing water in the evening accounts for 30%. "Dry and wet cycle" management is implemented during the winter dormant period, and water at noon on sunny days after the soil is completely dry. 2. Water quality and watering techniques suggest using rainwater or tap water that is left standing for 3 days. The difference between the water temperature and the ambient temperature should be ≤5℃. Use a fine-hole showerhead to implement "immersion irrigation", and each watering lasts for 10-15 minutes to allow the water to fully penetrate into the 20-cm soil layer. Drainage ditches need to be dug in time during the rainy season to prevent root rot caused by stagnant water.
Scientific maintenance and management can keep lily of the valley with strong vitality for 5-8 years. By grasping key fertilization nodes and precise moisture control, combined with regular soil testing (it is recommended to maintain the pH value of 6.0-6.5 every quarter), you will harvest a sea of lily flowers that continues to bloom. Remember that observing the condition of the plant is more important than strictly following the schedule. When the leaves are shiny and the flower stems are straight, it is proof of the best maintenance effect.