How to fertilize chrysanthemum? What should I do if I fertilize too much?

Chrysanthemum is a common ornamental flower with many varieties and colors. Chrysanthemum is one of the four gentlemen in our country, which indicates auspiciousness and longevity, and is now planted everywhere. Chrysanthemums can be planted in the open field or potted, but the requirements for the planting environment are not very high. Extra fertilization is generally needed for chrysanthemums to grow smoothly and blossom on time. Let's take a look at how to fertilize chrysanthemums. What should I do if I fertilize too much?

First, how to fertilize chrysanthemums?

1. Potassium and phosphorus are the main fertilizers for chrysanthemum. Fertilization methods are different in different growth stages and seasons, fertilization time can not be too early, generally before flowering, that is, autumn, it is necessary to ensure adequate fertilizer and water, increase the number of fertilization, but also increase its concentration. In the period of high temperature in summer, it is necessary to reduce fertilization to help chrysanthemums spend the summer safely.

2. the bottom fertilizer is added to the bottom of the basin when changing the pot. according to the size of the chrysanthemum plant, the pot needs to be changed. Do not change the large pot at once, slowly according to the size, change the flowerpot of the right size little by little. Soil nutrients are consumed without changing pots, which is not conducive to growth and flowering, so it is necessary to change pots at the right time. When changing pots, add appropriate amount of fertilizer to the soil to ensure the healthy growth of chrysanthemums.

3. In the chrysanthemum seedling stage, little or no fertilization, the plant is more fragile, fertilized once every 7-10 days, pay attention to the application of diluted fresh water fertilizer.

4. In the growing period of chrysanthemum, when there is a rapid growth period, the plant has a great demand for nutrients, so it is necessary to increase the times of fertilization, about once every 5 to 7 days.

Second, what should I do if the chrysanthemum fertilizes too much?

1. Clean the root and change the basin

Immediately remove the damaged flowers from the pot, clean the roots and cut off the roots of the damaged parts, and cut off the wilting branches and leaves. Then change the culture soil, re-pot, pour water, and put it in a cool place, do not let direct sunlight, spray water 3-5 times a day, to ensure that the plant water balance, until flowers and trees return to normal growth.

2. Flushing

Wash the flowerpot in flowing water for 1 hour or 2 hours, the water surface should be 2 cm higher than the basin surface, in order to quickly reduce the fertilizer content of the basin soil.

3. Pour water thoroughly

For some precious flowers and trees or delicate flowers and trees with delicate roots, it is not suitable to wash their roots and change the soil. The damaged flowers and trees should be watered for 2 or 3 times in a row in order to discharge high concentration fertilizer.

Note that fertilization should be "7% water, 3% fertilizer", especially when using compound fertilizer, the concentration should be 0.1%-0.3%, then spray it to the basin soil with a spray can, do not spray too much, and it is appropriate for the solution to flow out of the outlet. Solid fertilizer should be used appropriately according to the size of plants and flowerpots. For rod-shaped special chemical fertilizers, generally the diameter of flowerpots is about 1 / 2 in 10cm, the diameter of flowerpots is larger than 12cm, and 3 / 4 flowerpots are buried.