What are the fertilization methods and precautions for marigolds?

Marigold is a common ornamental flower in daily life. During its growth, it cannot do without light, fertilizer and water. Watering marigolds is relatively simple: just keep the soil alternating between dry and moist. But the fertilization method is not so simple. So how should marigolds be fertilized? Follow the editor and take a look.

1. Fertilization at the seedling stage

Many friends think that seedlings do not need fertilization when growing them, but in fact fertilization at the seedling stage is also very important. When fertilizing at the seedling stage, the ratio of organic fertilizer to inorganic fertilizer should be controlled. A single type of fertilizer should not be applied alone, otherwise it can easily cause fertilizer deficiency later. Seedling fertilization should be diluted with water before application. This can avoid root damage from concentrated fertilizer, and liquid fertilizer can be more easily absorbed by the root system, promoting seedling growth.

2. Fertilization during the growth period

The growth period of marigolds is the time when the demand for fertilizer is greatest. In order to meet the large nutrient needs of marigolds, only sufficient nutrients can enable them to grow quickly. At this time, topdressing should follow the principle of applying thin fertilizer frequently, generally applying liquid fertilizer once a month. In spring and autumn, apply a nitrogen-phosphorus-potassium compound fertilizer once as topdressing, while during the spring and autumn growth periods, apply it once every 15-20 days. Fertilization is best carried out in the afternoon on a sunny day, so as to avoid plant wilting or root rot.

3. Fertilization during the flowering period

Fertilization can also be carried out during the flowering period of marigolds. The best fertilization time is around 7 p.m. If it is potted, foliar fertilizer can be sprayed to quickly maintain the nutrients needed by the plant. For large-scale planting of marigolds, the soil layer needs to be plowed 20 cm, so that the surface soil is not only fine and crumbly but also soft, keeping the field surface level, applying enough base fertilizer per mu, and covering and harrowing the fertilizer as base fertilizer.

4. Precautions

At low or high temperatures, marigolds will enter a dormant period. Although marigolds have a large demand for fertilizer, when the summer low temperature is above 35 degrees, it is not suitable to apply topdressing to them, otherwise it will cause root burn and induce pests and diseases. And when the temperature is below 15 degrees, fertilizing them will also cause excessive growth and root damage. In addition, when repotting or taking cuttings of the plant, fertilization needs attention. Generally, after repotting, it is necessary to wait one week for it to adapt to the potting soil before fertilizing. For cuttings, fertilization should wait until its branches and seeds sprout.

The above is an introduction to the fertilization methods and precautions for marigolds. I hope it can help you. If you want to learn more related knowledge, please keep following us.