Reasons for yellow azalea leaves Choose appropriate fertilizer fertilization methods. Notes on azalea flowers are deeply loved by flower friends because of their gorgeous flowers and elegant posture. During the maintenance process, the problem of yellow azalea leaves often troubles flower lovers. This article will reveal to you what fertilizer can be used to effectively treat yellow azalea leaves and rejuvenate your beloved flowers. Causes of yellow azalea leaves Rhododendron yellow leaves may be caused by many reasons, such as improper watering, insufficient light, soil problems, pests and diseases, etc. Fertilizer problems are also one of the common causes of yellow azalea leaves. Choose appropriate fertilizers 1. Basic fertilizer Rhododendron likes slightly acidic soil. Acidic fertilizers should be chosen when fertilizing. Organic fertilizers such as decomposed chicken manure, cow dung, etc. can provide rich nutrients, improve soil structure, and help rhodendron yellow leaves. recovery.
2. Foliar fertilizer Foliar fertilizer can directly supplement the nutrients needed by rhododendron and promote leaf growth. When rhododendron leaves are yellow, foliar fertilizers containing nitrogen, phosphorus, potassium and other elements can be selected for spraying, such as potassium nitrate, dihydrogen phosphate. potassium, etc.
3. Trace element fertilizers Trace element fertilizers can supplement the trace elements needed during the growth of rhododendron, such as iron, zinc, boron, etc. When rhododendron leaves are yellow, appropriate amounts of trace element fertilizers can be applied to promote leaf recovery. Fertilization method 1. Watering and fertilizing While watering, appropriate amount of fertilizer can be applied, but it should be noted that the amount of fertilizer should not be too much to avoid causing fertilizer damage. It is generally applied once a week, and the amount applied each time is 1/3 of the recommended amount of fertilizer.
2. Foliar spraying After diluting the foliar fertilizer according to the instructions, spray it evenly on the leaves of rhododendron. Pay attention to it evenly when spraying to avoid accumulation of fertilizer on the leaves. Notes 1. Fertilization timing During the vigorous growth period of rhododendrons, such as spring and autumn, the amount of fertilization can be appropriately increased. In winter, rhododendrons grow slowly, so fertilization should be reduced.
2. Fertilizer selection When selecting fertilizers, we should consider the soil pH value of rhododendron, choose acidic fertilizers, and choose non-polluting and hormone-free fertilizers to ensure the healthy growth of rhododendron.
3. Avoid fertilizer harm During the fertilization process, the amount of fertilizer must be strictly controlled to avoid causing fertilizer harm. If the leaves are found to be burnt, fertilization should be stopped immediately and the leaves should be washed with clear water in time.
Rhododendron yellow leaves are a common problem during the maintenance process. Through reasonable fertilization, they can be effectively improved. I hope the fertilization guidelines in this article can help you solve the problem of rhodendron yellow leaves and rejuvenate your beloved flowers.
Note: This article quotes relevant data in the Flower Conservation Manual and third-party comments from China Flower News to ensure the authority and practicality of the content.