Analysis of the reasons for the yellowing leaves of the money tree and guidelines for the techniques to save yellowing leaves

Reasons and Solutions for the Yellowing of the Leaves of the Fortune TreeAs one of the most popular ornamental leaf plants in office and home environments, the yellowing of the Fortune Tree leaves has been a困扰 for many caregivers. This article systematically sorts out the three most common causes of yellowing, combined with 20 years of gardening experience to provide professional solutions, helping your green plants regain vitality.I. Yellowing Caused by Imbalance in Light Management1.1 Mechanism of Sunburn InjuryThe native tropical rainforest growth environment determines that the Fortune Tree prefers scattered light, and direct light exceeding 20,000 lux can cause damage to the chloroplast structure. The intensity of sunlight at noon in summer can reach 80,000 lux, and continuous exposure for 3 hours can result in the edges of the leaves turning yellow.1.2 Scientific Shading SolutionIt is recommended to use a shade rate of 40%-60%纱帘, or move it to 1.5 meters away from the south window. Yellowed leaves should be pruned immediately, the cut should be coated with charcoal powder to prevent infection, and the pot should be rotated 180° weekly to ensure even exposure to light.II. Yellowing Caused by Improper Water Control2.1 Principle of Root SuffocationThe difference in water permeability between ceramic and plastic pots is often overlooked. Experimental data shows that under the same amount of watering, the water retention time of the plastic pot matrix is 2.3 times longer than that of the ceramic pot, and the fine roots start to rot in a water-logged environment after 48 hours.2.2 Precision Irrigation StrategyAdopt the 'Three-Finger Detection Method': Insert the fingers into the second knuckle of the pot soil, and water when it is dry. For severely rotten root plants, immerse in potassium permanganate (0.1% concentration) for 30 minutes, and then replace with a new matrix with 30% perlite.III. Yellowing Induced by Malnutrition Supply Imbalance3.1 Deficiency Symptoms SpectrumNitrogen deficiency causes uniform yellowing of old leaves, and insufficient iron elements cause interveinal discoloration in new leaves. Long-term use of tap water for irrigation can easily cause soil alkalization, and when the pH value is greater than 7.5, there may be a magnesium element fixation phenomenon.3.2 Intelligent Fertilization SolutionIt is recommended to use N-P-K 20-20-20 water-soluble fertilizer, applying an 800-fold solution every 15 days in spring and summer. Combined with chelated iron foliar fertilizer (once a week) can quickly improve yellowing, and using citric acid to adjust the irrigation water to a pH of 6.0-6.5 has a better effect.By regularly observing the changes in leaf morphology and managing the three elements of light, water, and nutrition in coordination, the Fortune Tree can maintain a shiny green appearance. It is recommended to conduct a comprehensive maintenance check every quarter, establish a maintenance log to record temperature and humidity data, and use scientific methods to prevent yellowing.