How to Make兰花 Roots Sprout Again
Orchid roots, as the life center of the plant, directly affect the germination rate and flowering quality. Many orchid enthusiasts often encounter problems such as root aging and difficulty in sprouting new buds during the maintenance process. Mastering scientific techniques for promoting sprouting and transplantation methods can bring vitality back to withered roots and cultivate strong new seedlings.
Four-Step Method for Promoting Sprouts in Orchid Roots
Root Pruning Techniques
Select full roots with a diameter > 3mm, and cut the diseased and weak roots diagonally with scissors disinfected with alcohol, retaining a breathing surface with a cut angle > 45°. Special attention should be paid to removing spongy empty roots, as these roots have lost their absorption function and are prone to bacterial growth.
Plant Material Selection Criteria
It is recommended to use Chilean moss with a moisture content of 60%, with fiber length > 5cm to form a breathable and water-retaining layer. Add 3g of Bacillus subtilis powder to every 200g of moss, which can effectively prevent root rot.
Temperature and Humidity Control
Keep the temperature inside the sealed bag at 25-28°C during the day and lower it to 18-20°C at night. Ventilate the bag for 5 minutes each morning and evening to maintain the humidity inside the bag at the golden range of 75%-85%.
Complete Guide to Transplanting New Buds
Optimization of Plant Material Formula
Mix planting stone (3 parts) + Xian soil (4 parts) + decomposed leaf soil (2 parts) + pine phosphate (1 part), with particle diameter controlled at 0.5-1cm. This formula has a porosity of 35%, a water retention time of about 7 days, and an EC value stable at 0.8-1.2mS/cm.
Key Points for Root Treatment
New buds with 2-3 original roots have the highest survival rate when transplanted. Soak in a solution of indole butyric acid diluted 1000 times for 15 minutes to stimulate the production of more fine roots. Keep the environment diffused light during root drying, and it is best to pot when crystal heads appear at the root tips.
Planting and Maintenance Rhythm
Use the moist soil potting method, maintaining a matrix water content of 40% in the first week. After the new buds unfold their leaves, spray 0.1% potassium dihydrogen phosphate solution weekly, combined with a monthly application of EM bacterial solution to the roots, which can increase the growth rate of new seedlings by 30%.
By scientifically adjusting temperature and humidity and accurately proportioning the plant material, even 5-year-old old rhizomes can still stimulate 2-3 generations of new buds. The key is to master the maintenance principle of "three parts moisture, seven parts air", regularly observe the root condition, and timely adjust the maintenance plan to achieve continuous rejuvenation and propagation of orchids.