How to water white orchids in spring
As a classic representative of the three fragrance in the courtyard, white orchids are favored by gardening enthusiasts for their elegant fragrance. Spring is a critical period for white orchids to sprout branches and expand leaves. Reasonable water management directly affects the flowering quality. This paper will systematically analyze the key points of spring watering and maintenance of white orchids from three dimensions: scientific watering, environmental control, and disease prevention. Scientific watering method for spring white orchids phased watering strategy In early spring (February-March), we follow the principle of "seeing dry, seeing wet". When the surface soil turns white, deep watering is carried out to ensure root respiration for 7-10 days every time. Mid-spring (April) enters the growth period, maintaining the soil water content of about 60%, and watering it thoroughly for 3-4 days every time until the bottom of the basin seeps. Late spring (May) is combined with 20-20 -20-20 water-soluble fertilizer, and the "sandwich irrigation method" is adopted: first clear water moistens the soil → fertilizer water penetrates → second clear water to prevent the accumulation of salt-alkali. Water quality and water temperature control Use tap water that has been dried for more than 24 hours, and the temperature difference between the water temperature and the soil temperature must be ≤3℃. It is recommended to use water storage tanks in conjunction with thermometers for monitoring, and the optimal water temperature range is 15-18℃. Special reminder: Rainwater collection needs to filter impurities to avoid carrying pollutants. Key points for environmental control of white orchids: Humidity balance skills. Dry areas in the north implement the "Double 70 Rule": 70% air humidity and 70% soil humidity. In addition to leaf spraying in the morning and evening, a water tray can be placed next to the flower pot to continuously increase humidity through evaporation. In the plum season in the south, a rainproof canopy needs to be erected to avoid the water content of the basin soil exceeding 80%. In special weather, watering should be stopped 24 hours before the cold spring, and straw should be used to wrap the basin walls for insulation. Immediately after dusty weather, wash the leaves with 25 ° C clear water to restore photosynthetic efficiency. Use the bamboo stick test method on continuous rainy days: observe moisture traces after inserting the soil into the basin for 10 minutes. White orchid disease prevention system Prevention of watering-related diseases and root rot prevention: Use 0.1% potassium permanganate solution instead of regular watering every month. Response to leaf spot disease: Stop spraying water on the leaf immediately when the sick leaf is found, and use 800 times carbendazim solution to irrigate the roots. Special note: Strengthen ventilation after watering and use brackets to ensure that the leaves do not come into contact with moist soil.
Through precise watering rhythm control, scientific environmental control and systematic disease prevention, the spring growth of white orchids can be significantly improved. It is recommended to combine regular observation to record the germination speed of new buds (ideal value of 3 cm/week) and leaf gloss, and dynamically adjust the maintenance plan to lay the foundation for blooming in summer.