Fertilization methods of Artemisia annua L.

Artemisia annua, also known as Imperial vegetable, Artemisia, cauliflower and so on, has high edible value and medicinal value, and can also be cultivated as an ornamental plant. So, what are the fertilization methods for chrysanthemum? Let's study together.

1. Law of fertilizer requirement

The growth of Artemisia chrysanthemum needs a lot of nutrients, among which the proportion of nitrogen, phosphorus and potassium is the highest. the main edible part of Artemisia annua is the tender stem, and there is a great demand for nitrogen in the process of planting, so we should mainly use nitrogen fertilizer when fertilizing. Combined with the right amount of phosphorus and potassium fertilizer, the demand for nutrition in the seedling stage is small, but when it grows to about 9 true leaves, the amount of fertilizer will gradually increase. Therefore, we should adjust the water and fertilizer management according to the growth situation of Artemisia annua, to ensure that the growth of Artemisia annua has adequate nutrition, and when the plant grows to about 19 cm, it can be harvested.

2. Apply sufficient base fertilizer

The growth period of Artemisia annua is relatively short, the root capacity is strong, but the distribution is not deep, and it has a strong fertilizer tolerance, so it is necessary to apply sufficient base fertilizer before planting, and control the amount of base fertilizer according to the planting area. The base fertilizer is mainly based on fully mature farm manure, and then add an appropriate amount of compound fertilizer, sprinkle it evenly on the surface of the soil, and then carry out soil preparation, if planting in the arch shed. Then it is necessary to apply base fertilizer in the autumn of the first year to ensure that the soil can fully absorb fertilizer nutrients and improve soil fertility.

3. topdressing at the right time

The growth cycle of chrysanthemum chrysanthemum is about 40 days, so the work of topdressing is very important. although the growth cycle is short, chrysanthemum chrysanthemum should be topdressing about three times in the whole growth period, the first time when the chrysanthemum seedlings grow to about 9 centimeters, the fertilizer is mainly ammonium sulfate, to improve the growth of the seedlings, enhance the resistance, and then topdressing again when the seedlings grow 3-5 true leaves, the fertilizer is mainly available nitrogen fertilizer. Finally, when the seedlings grow to about 11 cm, topdressing is carried out together with watering, and the fertilizer is mainly compound fertilizer, because chrysanthemum chrysanthemum can be harvested many times, so we have to top fertilizer every time we harvest, and the frequency of topdressing should be kept at about 1 week. Avoid reducing the quality of chrysanthemum.

4. Points for attention

Chrysanthemum chrysanthemum is a kind of leafy vegetables. due to the short growth period, many vegetable farmers will ignore the rational application of fertilizer when fertilizing. we should not apply a certain kind of fertilizer, especially nitrogen fertilizer, if the nitrogen fertilizer is excessive, it will not only reduce the quality of chrysanthemum, but also increase the nitrate content of chrysanthemum, which is harmful to human health. therefore, we must pay attention to the reasonable proportion of nutrition when applying fertilizer. Pay attention to the application of phosphorus and potassium fertilizer to ensure the normal growth of Artemisia annua and avoid malnutrition.

The above is the fertilization method of chrysanthemum, I hope it can help you!