The maintenance of seedlings is of great significance for the improvement of landscape and ecological environment. Fertilization is one of the key links in seedling maintenance. Scientific and reasonable fertilization methods can promote seedling growth and improve the disease resistance of seedlings, thereby enhancing the overall effect of landscape. This article will introduce in detail the fertilization methods of ground-planted seedlings, helping you understand how to provide sufficient nutrition for seedlings.
Understanding the fertilization needs of seedlingsBefore fertilizing, it is first necessary to understand the fertilization needs of seedlings. Different types of seedlings have different nutrient requirements, and the same type of seedlings may also have different nutrient needs at different growth stages. Seedlings need more nitrogen fertilizer in the early stage of growth to promote the growth of branches and leaves; in the middle and late stages of growth, they need to increase phosphorus, potassium, and other elements to promote root development and fruit maturation.
Choosing the right fertilizerThe selection of fertilizers for ground-planted seedlings should follow the following principles:
1. Organic fertilizers: Organic fertilizers are rich in various nutrients, have long-term effects, and are good for soil improvement. Common organic fertilizers include compost and decomposed animal manure.
2. Inorganic fertilizers: Inorganic fertilizers have a quick effect but a short duration and can easily cause soil compaction. Common inorganic fertilizers include urea, diammonium phosphate, and potassium sulfate.
3. Compound fertilizers: Compound fertilizers are mixtures of multiple nutrients and can be selected according to the growth needs of seedlings.
Fertilization timing and methods1. Fertilization timing: The timing of fertilization for ground-planted seedlings should be determined based on the growth cycle of the seedlings and climatic conditions. Generally speaking, spring and autumn are the best times for fertilization.
2. Fertilization methods:
(1) Broadcast application: Spread the fertilizer evenly around the seedlings and then turn it into the soil.
(2) Hole application: Dig a small hole near the seedling's roots, put the fertilizer in the hole, and then cover it with soil.
(3) Foliar application: Dissolve the fertilizer in water and spray it on the seedling leaves.
Fertilizer dosage and interval1. Fertilizer dosage: The amount of fertilizer should be determined based on the variety of seedlings, growth stage, and soil fertility. For mature seedlings, the annual dosage is 50-100 kilograms of organic fertilizer per plant and 500-1000 grams of inorganic fertilizer.
2. Fertilization interval: The fertilization interval should be determined based on the growth rate of the seedlings and the type of fertilizer. Generally, the interval for organic fertilizers is 30-60 days, and for inorganic fertilizers, it is 15-30 days.
Precautions for fertilization1. Avoid over-fertilization: Excessive fertilization can lead to rapid growth of seedlings and easily cause diseases and pests.
2. Avoid fertilizing too close: Fertilizing too close can damage the seedling roots and affect growth.
3. Pay attention to fertilization safety: When fertilizing, wear protective clothing to prevent fertilizer from splashing into the eyes or skin.
The fertilization work of ground-planted seedlings is an important part of landscape maintenance. Mastering scientific fertilization methods can help improve the growth rate and disease resistance of seedlings, providing strong support for the construction of China's landscape. During the fertilization process, full consideration should be given to the growth needs of seedlings, type of fertilizer, timing of fertilization, and other factors to ensure the effectiveness of fertilization. It is hoped that this article can provide useful references for the majority of seedling maintenance personnel.