1, main root length

The main roots of wormwood are more obvious, thicker and longer than those of ordinary plants, with a diameter of 1.5cm. The roots cross the ground, and the leaves and stems are brown and grayish brown. Its base is slightly lignified and its branches are mostly short branches.

2. The blade has cracked teeth.

The leaves of wormwood are as thin as white paper, covered with short gray fluff, and each leaf has about 3 small teeth. Lobes are oval or needle-shaped, so leaves are unique and easy to distinguish.

3. The head is oval.

The head of wormwood is oval, and there are more than 10 small spines or compound spines on its branches. Its style is slender, and when it blooms, it extends out of the corolla, which looks very special and looks like a goblet.

Planting method of wormwood

1, sowing time

The planting of wormwood is generally carried out in early spring, usually in March-April, when the climate is warmer, which is conducive to seed germination and seedling growth. Too high temperature often limits its growth, and high temperature and humidity are also easy to breed germs, thus making seedlings sick.

2. Land selection and leveling

Generally speaking, neutral soil with deep soil layer and rich organic matter is selected for planting wormwood, and soft and fertile sandy loam is the best choice. After land selection, deep ploughing is needed, the depth is more than 30 cm, so that the soil can be loosened, and grass seeds can be buried deeply to remove some weeds.

Step 3 Apply plantar fertilizer

Proper fertilization is needed when preparing soil. Generally, decomposed farmyard manure should be used, and the dosage is about 30-45 tons per hectare. If not, you can apply organic fertilizer, and the dosage is only 750 kg per hectare. Fertilizer must ensure that the content of nitrogen, phosphorus and potassium is above 20%, and it also contains a lot of amino acids and organic matter, and does not contain harmful substances such as heavy metals.

Step 4: sow seeds

Sow the seeds of wormwood directly in the soil with a spacing of 40-50 cm, and cover it with a layer of fine soil with a thickness of 0.5 cm after sowing. Proper watering is needed to keep the soil moist after sowing.

5. Follow-up maintenance

Weeding needs to be done well after spring. When the seedlings grow to 30 cm high, appropriate topdressing is needed. In rainy days, you can spray special fertilizer for raising seedlings, 60-90 kg per hectare. Spray liquid fertilizer on sunny days. In view of the humid climate, topdressing is generally carried out together with scarification. In addition, attention should be paid to irrigation and drainage in rainy season.