How to Cultivate Orchids in the Courtyard
Cultivating orchids in the courtyard can enhance the style of the space and enjoy the pleasure of raising flowers. However, to grow orchids with lustrous leaves and fragrant flowers, it is necessary to master key technologies such as substrate proportioning, environmental control, and water and fertilizer management. This article will provide a detailed analysis of the scientific cultivation methods of courtyard orchids from five core dimensions.
Courtyard Orchid Substrate Preparation
Porous Substrate Formula
A three-layer structure substrate is used: the bottom layer uses ceramic stones with a diameter of 2-3 cm as a drainage layer, the middle layer is mixed with volcanic stone (40%),植金石 (30%), pine bark (20%), and charcoal (10%), and the top layer is covered with fresh sphagnum moss. This structure can increase the root aeration rate by 60% and extend the water retention time by 3 hours.
Substrate Disinfection Treatment
It needs to be sterilized at high temperature steam for 30 minutes before use, or soaked in a 0.1% potassium permanganate solution for 2 hours and then dried in the sun. When repotting every year, keep 1/3 of the old substrate to maintain the balance of the flora.
Orchid Growth Environment Control
Lighting and Ventilation Settings
Build a bamboo curtain shed with a shading rate of 70% in the courtyard, place flower stands horizontally to ensure 3-4 hours of morning light every day. Install a mini circulating fan to maintain an air flow velocity of 0.5m/s, which can reduce the incidence of diseases by 45%.
Intelligent Temperature and Humidity Management
Configure a temperature and humidity monitor to maintain a daytime temperature of 18-25°C, night temperature of 12-15°C, and a day-night temperature difference of 8°C, which is most conducive to flowering. In summer, install an automatic spray system to keep the air humidity at 60-70%, and use a humidifier in winter to prevent drying of the tips.
Precision Water and Fertilizer Supply Plan
Scientific Watering Cycle
Water thoroughly every 5 days in spring and autumn, spray twice a day in summer, and change to half-watering every 10 days in winter. Use rainwater or pure water with a pH of 6.0-6.5, and avoid direct灌溉 with tap water.
Nutrition Supply Strategy
Apply orchid-specific slow-release fertilizer (N-P-K=10-30-20) every month during the growing season, and add phosphorus and potassium fertilizer (800 times liquid) during the bud formation period. Pay attention to applying thin fertilizers frequently, and the concentration should not exceed 0.1%.
Through systematic environmental control and meticulous management, courtyard orchids can bloom 2-3 times a year. It is recommended to establish a maintenance log to record data such as temperature and humidity, and fertilization time, and adjust the plan dynamically based on the plant's condition. Mastering these core technologies, ordinary courtyards can also cultivate orchids that meet the standards for exhibition.