Bonsai, as a part of traditional Chinese art, is loved by many gardening enthusiasts for its exquisite and intricate beauty, profound artistic conception. In the cold winter, the growth and maintenance of bonsai face a series of challenges. Fertilization is a key step in maintaining the healthy growth of bonsai. This article will introduce you to the methods and precautions of fertilizing bonsai in winter, helping your bonsai to thrive even in the cold season.
The Importance of Winter FertilizationWinter is a slow growth period for bonsai, but appropriate fertilization is still crucial. This is because winter fertilization can replenish the nutrients consumed by plants during the growing season, laying a good foundation for the next year's growth. Reasonable fertilization can also enhance the cold resistance of bonsai, allowing them to better withstand the cold winter.
Methods of Winter Fertilization1. Choose the Right Fertilizer
Winter fertilization should choose decomposed organic fertilizers such as chicken manure, cow dung, and sheep dung. These fertilizers are rich in nutrients essential for plant growth and less likely to cause soil compaction. Liquid fertilizers such as potassium dihydrogen phosphate can also be used, but care should be taken not to use them at too high a concentration.
2. Timing of Fertilization
The best time for winter fertilization is usually in months with relatively stable temperatures, such as November to February of the following year. During this period, temperatures gradually decrease, plant growth rate slows down, and fertilizers are more easily absorbed by plants after application.
3. Amount of Fertilization
The amount of fertilization in winter should not be too much to avoid fertilizer damage. Generally speaking, the fertilization amount for adult bonsai is about 10-15 grams of fertilizer per square meter of soil. For young seedlings or weak-growing bonsai, the amount of fertilization should be appropriately reduced.
4. Method of Fertilization
When fertilizing, spread the fertilizer evenly on the pot surface first, then cover it with fine soil to prevent direct contact between the fertilizer and the plant roots. After fertilization, water thoroughly to allow the fertilizer to penetrate into the soil.
Precautions for Winter Fertilization1. Avoid High-Temperature Fertilization
In winter, temperatures are low, and plant growth rate slows down. If fertilizing during high temperatures, it can easily cause fertilizer damage. Fertilization should be done at appropriate temperatures.
2. Pay Attention to Fertilization Safety
When fertilizing, wear gloves and a mask to avoid direct contact of the fertilizer with the skin and respiratory tract.
3. Observe Plant Response
After fertilization, closely observe the growth condition of the bonsai. If there are symptoms such as yellowing leaves and slow growth, it may be due to improper fertilization. Adjust the fertilization method in a timely manner.
Winter fertilization is an important part of bonsai maintenance. Reasonable fertilization methods can help bonsai safely survive the cold winter and lay the foundation for the next year's growth. During the fertilization process, attention should be paid to choosing the right fertilizer, fertilization time, amount of fertilization, and method of fertilization, and to observe the plant's response to ensure the healthy growth of the bonsai.
References:
“Bonsai Art and Maintenance” edited by the Chinese Bonsai Art Association
“Bonsai Maintenance Manual” by Chen Junhong