What to Do When the Root of a Milan Flower Rot
Wilted leaves and blackened roots are typical symptoms of root rot in Milan flowers. As a tropical plant that thrives in moist environments, root rot often catches plant enthusiasts off guard. This article will systematically analyze the three major causes of root rot and provide operational rescue plans to help you quickly restore the plant's vitality.
One, Waterlogging Root Rot Prevention Guide
Diagnosing Root Health
Remove the plant and gently squeeze the roots; healthy roots are milky white and flexible, while rotten roots are black and fragile. If the area of rotten roots exceeds 50%, immediate potting change is required.
Scientific Root Drying and Revitalization
After removing the rotten roots, soak them in a 0.1% potassium permanganate solution for 20 minutes to disinfect. Place them in a well-ventilated area with scattered light for 2 hours to dry the roots, then, once a protective film has formed on the cuts, use a root growth stimulant containing indole butyric acid to promote new root growth.
Two, Soil Environment Optimization Solution
Substrate Proportion Improvement
Milan flowers require slightly acidic soil with a pH of 5.5-6.5. Recommended mixture: 4 parts of decomposed leaf soil + 3 parts of river sand + 2 parts of pearl rock + 1 part of decomposed pine needles, with sulfur powder (0.5g per liter of soil) added to adjust the pH.
Strengthening Drainage System
During potting, lay a 3cm layer of ceramsite for drainage, and mix in 5% vermiculite to enhance aeration. It is recommended to use red pottery or green mountain pots, which have a porosity 30% higher than ordinary pottery pots, effectively preventing waterlogging.
Three, Precise Fertilization Tips
Fertilizer Selection Criteria
In the spring and summer growing season, apply an acidic nutrient solution with N-P-K = 10-6-4, combined with chelated iron fertilizer. Avoid using alkaline fertilizers such as wood ash, and during the winter fertilization break, spray once a month with a seaweed foliar fertilizer.
Fermentation and Decomposition Process
Homemade organic fertilizer needs to be composted at a high temperature of over 60°C for 30 days, and it is recommended to use EM bacteria to accelerate fermentation. Dilute before application at a ratio of 1:50, and combine with 0.2% Bacillus subtilis to prevent root rot disease.
Through a three-dimensional maintenance strategy of moisture control, soil improvement, and scientific fertilization, the recovery rate of root rot in Milan flowers can reach over 85%. In daily maintenance, it is recommended to use a soil tester to monitor the EC value (maintained at 0.8-1.2mS/cm) monthly, and to replace pots regularly (once every 2 years) to fundamentally prevent root problems.