What are the reasons for the withering of the trunk of the Fortune Tree
As a common ornamental leaf plant in offices and homes, the Fortune Tree's appeal is diminished by the withering of its branches, troubling many plant enthusiasts. This article deeply analyzes the causes of withering from six dimensions and provides actionable solutions to help restore the lush vitality of the Fortune Tree.
I. Light Imbalance Causes Metabolic Disorders
1.1 The Chain Reaction of Insufficient Light
Long-term exposure to dark environments interrupts the process of photosynthesis, preventing chloroplasts from synthesizing energy substances such as glucose. A lack of light for over 3 weeks will trigger an ATP energy crisis, manifested by the gradual fibrosis of the woody part of the branches.
1.2 Seasonal Light Regulation
In spring and autumn, the tree can receive full sunlight, but in summer, a 70% shade net should be used to filter strong light. In winter, it is recommended to use plant growth lights for 4 hours daily to maintain a light intensity of 2000-3000 lux.
II. Collapse of the Nutritional Supply System
2.1 Symptoms of Element Deficiency
When the deficiency of nitrogen leads to the yellowing of more than 60% of the new leaves, the branches will initiate a self-protection mechanism, prioritizing the transport of nutrients to the apical meristem, causing the basal branches to wither.
2.2 Precise Fertilization Plan
During the growing season, use a 20-20-20 balanced fertilizer to water the roots weekly, combined with monthly foliar applications of 0.1% potassium dihydrogen phosphate. During the dormant period, switch to slow-release fertilizer granules, applying 0.5g per centimeter of pot diameter.
III. Improper Water Management
3.1 Pathological Process of Waterlogging
Continuous waterlogging for over 72 hours can cause the separation of cytoplasm and cell wall in root cells, leading to the massive reproduction of Gram-negative bacteria. This secondary damage is often indicated by withered symptoms in the branches and leaves when the root rot has reached over 70%.
3.2 Scientific Watering Strategy
Adopt the principle of 'watering when dry and moist'. Water thoroughly after the top 3cm of the substrate is completely dry. It is recommended to use a陶粒 (ceramsite) base + perlite mixed substrate to ensure porosity > 35%. Immediately invert the pot if waterlogging is detected, prune the blackened roots, and soak in a carbendazim solution for disinfection.
By regularly observing the leaf condition, establishing a maintenance log, and using professional tools like a soil tester, the withering of branches can be systematically prevented. It is recommended to conduct a comprehensive health assessment every quarter, adjusting light and fertilizer plans in a timely manner to keep the Fortune Tree in the best growing condition.