Abstract: Azalea, the beautiful messenger that blooms in spring, always makes people can't help but stop and appreciate it. To make this flower bloom more brilliantly, we need to take care of it carefully. So, what kind of flower fertilizer is good for rhododendrons? Today, let me take you to find out. 1. The choice of azalea fertilizer 1...
Azalea, the beautiful messenger that blooms in spring, always makes people can't help but stop and appreciate it. To make this flower bloom more brilliantly, we need to take care of it carefully. So, what kind of flower fertilizer is good for rhododendrons? Today, let me take you to find out.
1. Choice of azalea fertilizer 1. Organic fertilizer Organic fertilizer is a natural and environmentally friendly fertilizer that is rich in nutrients and promotes the growth of rhododendrons. Common organic fertilizers include chicken manure, cow dung, sheep manure, etc. During the fermentation process, these fertilizers produce rich microorganisms, which help improve soil structure and improve soil fertility.
2. Inorganic fertilizer Inorganic fertilizer is a chemical fertilizer that contains high nutrients such as nitrogen, phosphorus, and potassium. During the vigorous growth period of rhododendrons, appropriate application of inorganic fertilizers can promote the formation of flower buds and the opening of flowers. Common inorganic fertilizers include urea, diammonium phosphate, potassium sulfate, etc.
3. Compound fertilizer Compound fertilizer is a fertilizer containing a variety of nutrients, which can meet the nutrient needs of rhododendrons at different growth stages. The compound fertilizer is easy to use, just apply it in accordance with the proportion stated in the instructions. Common compound fertilizers include potassium nitrate, ammonium dihydrogen phosphate, etc.
2. How to use azalea fertilizer 1. Fertilization time The fertilization time for rhododendron is divided into basal fertilizer and topdressing. Basal fertilizers are usually carried out in autumn, and are mainly organic fertilizers, which help improve soil fertility. Topdressing is carried out in spring and summer, mainly with inorganic fertilizers and compound fertilizers to promote the formation of flower buds and the opening of flowers.
2. The amount of fertilizer application should be determined based on the growth of rhododendrons and soil fertility. Generally speaking, the fertilizer application amount for adult rhododendrons is 10-20 kilograms of organic fertilizer per plant per year, and 1-2 kilograms of inorganic fertilizer and compound fertilizer each. When fertilizing, sprinkle evenly around the flower pot to avoid direct contact with the root system.
3. Fertilization methods Fertilization methods include sowing, burying and spraying. Spreading application means evenly spreading the fertilizer on the surface of the flowerpot and then watering it; burying application means mixing the fertilizer with soil and burying it at the bottom of the flowerpot; spraying means diluting the fertilizer and spraying it evenly on the leaves. Select the appropriate fertilization method according to the actual situation.
3. Precautions for applying azalea flowers 1. Avoid excessive fertilization. Excessive fertilization will cause excessive growth of rhododendrons and affect the quality of flowers. Therefore, appropriate amount should be applied when applying fertilizer to avoid excessive amount.
2. Pay attention to the timing of fertilization. The timing of fertilization should be selected during the period of vigorous azalea growth, such as spring and summer. At this time, rhododendron has a greater demand for nutrients and the fertilization effect is better.
3. Pay attention to the fertilization method When applying fertilizer, avoid direct contact with the root system to avoid root burning. At the same time, water should be watered in time after fertilization to fully dissolve the fertilizer.
4. Common problems and solutions in rhododendron fertilization 1. Reason for fertilizer root burning: caused by excessive fertilization or improper fertilization methods.
Solution: Stop fertilizing immediately, cut off the burned root area, and apply rooting powder to the wound to promote wound healing.
2. Causes of malnutrition: caused by insufficient or uneven fertilization.
Solution: According to the growth needs of rhododendrons, apply appropriate amounts of organic fertilizers, inorganic fertilizers and compound fertilizers to maintain soil fertility.
3. Causes of leaf yellowing disease: caused by iron deficiency in the soil or improper fertilization.
Solution: When fertilizing, add appropriate amounts of iron-containing fertilizers, such as ferrous sulfate, etc.
Fertilizing azalea is a science. Only by mastering the correct fertilization method can this beautiful flower bloom more brilliantly. I hope this article can provide you with some useful references so that your rhododendrons can thrive.