First, the growth characteristics of chrysanthemum
Before introducing the fertilizer of chrysanthemum, let's first understand the growth characteristics of chrysanthemum. Chrysanthemum is a cold-tolerant plant with strong adaptability, but it has high requirements for soil. They need sufficient sunshine, suitable temperature and humidity, nutrient-rich soil and other conditions to grow healthily and luxuriantly.
During the growth of chrysanthemum, they need to absorb a lot of nutrients such as nitrogen, phosphorus and potassium, which play an important role in the growth, flowering and fruiting of chrysanthemum. Therefore, it is very necessary to fertilize chrysanthemums.
Second, what fertilizer does chrysanthemum need?
1, organic fertilizer
Organic fertilizer is one of the commonly used fertilizers for planting chrysanthemum. Rich in organic matter and nutrient elements, it can improve soil quality, improve soil fertility and promote plant growth and development. There are many kinds of organic fertilizers, including decomposed animal and plant manure, fish meal, bone meal, vegetable residue and so on.
In different stages of chrysanthemum growth, different kinds of organic fertilizers can be applied according to needs. For example, in the early stage of chrysanthemum growth, decomposed animal and plant manure can be used to provide sufficient nitrogen fertilizer for chrysanthemum to promote its growth; Organic fertilizers rich in phosphorus and potassium such as fish meal and bone meal can be used at flowering stage, which can promote the differentiation and growth of flower buds.
2. Compound fertilizer
Compound fertilizer is a kind of fertilizer which is made by mixing various nutrient elements. It contains not only main nutrients such as nitrogen, phosphorus and potassium, but also trace elements and growth regulators. Can fully meet the nutritional needs of plants, promote their growth and development, and improve their yield and quality.
When planting chrysanthemums, some compound fertilizers suitable for chrysanthemum growth can be selected for application. For example, the compound fertilizer with nitrogen, phosphorus and potassium content of 10: 15: 15 is suitable for the growth period and flowering period of chrysanthemum; The compound fertilizer with nitrogen, phosphorus and potassium content of 20: 10: 10 is suitable for flower bud differentiation and growth period of chrysanthemum.
3. Potassium dihydrogen phosphate
Potassium dihydrogen phosphate is a kind of fertilizer rich in phosphorus and potassium, which can promote the bud differentiation and growth of chrysanthemum and improve the quality and quantity of flowers. Potassium dihydrogen phosphate can be used for fertilization in bud differentiation and bud growth period of chrysanthemum, and the dosage per mu is about 2-3 kg.
Third, the use of chrysanthemum fertilizer
1, fertilization time
Chrysanthemum has a long growth cycle and can be fertilized from spring to autumn. Generally speaking, chrysanthemum needs fertilization during the growth and flowering period, and it doesn't need fertilization in winter. Be sure to loosen the soil before fertilization, so that the fertilizer can fully penetrate into the soil and provide nutrition for chrysanthemum.
2. Fertilization method
When applying fertilizer, spread the fertilizer evenly around the roots of chrysanthemum, then gently bury the fertilizer in the soil with a hoe, and finally water it thoroughly. Keep the soil moist after fertilization, so that the fertilizer can be fully absorbed and utilized by chrysanthemum.
Fourth, matters needing attention
1, not excessive fertilization.
Although fertilization plays an important role in the growth and development of chrysanthemum, excessive fertilization will also adversely affect the growth of chrysanthemum. Excessive fertilization will lead to too high nutrient content in the soil, lead to too fast plant growth, and damage the root system of chrysanthemum, thus affecting its growth and flowering.
2. Choose the right fertilizer
When choosing fertilizer, we should choose the appropriate fertilizer according to the growth stage of chrysanthemum and soil conditions. Different fertilizers contain different nutrient elements, and improper selection will affect the growth and development of chrysanthemum.
3. Pay attention to the timing of fertilization
Pay attention to choose the right time when applying fertilizer, so as not to affect the growth and flowering of chrysanthemum. Generally speaking, the fertilization time is mainly in the growth period and flowering period of chrysanthemum.
In short, planting chrysanthemums requires suitable fertilizers to ensure the growth and flowering of chrysanthemums. Choosing appropriate fertilizers and fertilization methods can make chrysanthemums grow healthier and more beautiful.