How to solve the problem of yellowing and dryness of aloe vera leaf tips
Aloe vera is a common succulent plant at home, and the problem of yellowing and dry tips of its leaves puzzles many growers. This article will systematically analyze the five key maintenance points from water management to nutrition regulation to help your aloe vera rejuvenate. 1. Scientific water management Diagnosis and remediation of water shortage symptoms When a wrinkled dry yellow appears on the tip of aloe vera leaf, it usually indicates that the soil water content is insufficient. It is recommended to use the "dipping basin method" to replenish water: place the flower pot in a basin and soak it for 15 minutes to ensure that the deep roots absorb water fully. Maintain the watering cycle of 7-10 days in spring and summer, and extend it to 15-20 days in winter. If there is still water 2 hours after watering in the soil permeability improvement plan, it means that the soil is severely hardened. It is recommended to use a mixed substrate with perlite: vermiculite: humus =1:1:3, and loosen the soil 2-3 times a year. Using bamboo loosening tools can reduce root damage. 2. Root maintenance and pot changing skills. When the root system is found to be exposed in the drainage hole at the bottom of the basin, or when the new leaves are significantly smaller than the old leaves, it is the best time to change the pot. Select a clay basin with a diameter of 5 cm larger than the original basin, and lay a 3 cm thick ceramsite drainage layer on the bottom of the basin. The root pruning standard retains the main root length of 15-20cm, and cuts off the brown aged lateral roots. Wounds need to be dried for 2 hours and then applied with charcoal powder to prevent fungal infection. After placing in the pot, place in a ventilated and cool place to slow down for 7 days. 3. Light control strategy Light intensity grading management The suitable light intensity for aloe vera is 8,000 - 12,000 Lux, and a sunshade net needs to be used to filter 50% of the light at noon in summer. It can be monitored in real time through the mobile phone metering APP, and the position should be adjusted immediately when the leaves appear gray sunburn. The seasonal lighting plan accepts full sunshine in spring and autumn, implements a "nine in the morning and four in the evening" shading system in summer, and uses a fill light to fill light for 4 hours a day in winter. Rotate the flowerpot at 90 degrees a week to ensure that the plants receive even light. 4. The application standard for accurate supplementation of nutrients and potassium fertilizers is a special fertilizer with N-P-K=3-5-8, which is applied once a month during the growing season. Foliar spraying uses 0.2% potassium dihydrogen phosphate solution, which has a better effect when combined with root irrigation. Be careful to avoid direct light within 48 hours after fertilization. The trace element synergy program supplements slow-release fertilizers containing magnesium and calcium every quarter to prevent leaf chlorosis. Dissolve 1g of magnesium sulfate in 2L of water and spray it once a month as foliar fertilizer.
By systematically implementing the above maintenance plan, normal germination of new leaves can usually be observed in 2-3 weeks. It is recommended to establish a maintenance log to record data such as moisture, light, and fertilization to gradually understand the growth laws of plants. When old leaves are found to be naturally metabolized yellow, it is normal and no need for excessive intervention.