How to prevent curling and yellowing of cyclamen
Cyclamen is deeply loved by horticulture enthusiasts for its unique flower shape and gorgeous colors, but problems such as curling and yellowing leaves and dry flower buds often occur during maintenance. This article systematically analyzes the key points for the prevention and control of common diseases from nutrition management to environmental regulation. Treatment plan for abnormal leaves of cyclamen leaf curling and yellowing treatment When the leaves are uniformly yellowed accompanied by curling, nitrogen, phosphorus and potassium compound fertilizer (diluted 1500 times) and trace element solution need to be immediately supplemented. It is recommended to adopt the principle of "thin fertilizer and frequent application", apply special liquid fertilizer every 10 days, and switch to slow-release granular fertilizer in winter. It is recommended to choose decomposed soybean powder (5-8 grains per pot) for organic fertilizers, mix it with the surface soil and replenish it regularly. Prevention and control strategies for flower bud abnormalities The dryness of flower buds is mostly caused by water imbalance. A scientific watering system needs to be established: based on the frequency of 3 days per time in spring and 5 days per time in autumn, combined with the humidity of the pot soil. Use the dipping basin method to replenish water, control the water level at 1/3 of the basin height, soak for 15 minutes and drain. Pay special attention to the need to reduce the amount of water during the flower bud differentiation period (temperature 15-18℃) and maintain the substrate humidity at 40%. Light and temperature management, a key element in environmental regulation, ensures 4-6 hours of scattered light exposure every day. In summer, sunshade nets need to be used to filter 50% of the strong light. Maintaining 12-15℃ in winter can prolong the flowering period, and keeping it below 28℃ in summer by spraying. It is recommended to rotate the flowerpot 180° every 3 days to ensure uniform light reception. The water and humidity control adopts the principle of "see dry, see wet", and water is replenished when the topsoil is 2cm dry. The air humidity is maintained by laying wet pebbles on trays, and a safe distance of 5 cm is maintained from the plants. Avoid direct water spraying during flowering, and use ultrasonic humidifier to maintain 65% humidity. The ventilation system is optimized to maintain air circulation for 3-4 hours a day, but it is necessary to avoid direct air conditioning. It is recommended to use a circulating fan to operate at low speeds to ensure that the air flow rate is ≤0.5m/s. Regularly use a soft brush to clean the air holes on the leaves to enhance gas exchange efficiency.
Through the establishment of a scientific fertilization system, precise environmental control and regular health monitoring, the problem of curling and yellowing of cyclamen leaves can be effectively prevented. It is recommended to conduct foliar microscopic examination every month to treat initial symptoms in a timely manner, and use it to disinfect the bulbs (soaked in 1000 times carbendazim solution) when changing pots to maximize the ornamental value throughout the year.