Planting technique of Artemisia annua L.

Artemisia angustifolia is a perennial herb or subshrub plant of Compositae, which mainly grows under forests, valleys or grasslands within 1000 meters above sea level. The whole grass can be used as medicine, with the effect of sweating and expectorant, and can be used to treat heatstroke, chest and abdominal pain and other symptoms, so how to plant Erna incense? Let's take a look.

1. Growth habits

The root system of Artemisia mandshurica is well developed, which is sunny, high-lying, dry and well-drained. The soil should be acidic or neutral soil with deep soil layer, and continuous cropping should be avoided. The average temperature for growth is 18-21 degrees, it has a certain drought resistance, in mild drought, water shortage has little effect on it, but if it is in a long-term dry environment, its growth will be very slow, serious will cause leaves to fall and die.

2. Methods of reproduction

Incense can be controlled by both sexual and asexual methods, and asexual reproduction is mainly used in production. Its underground rhizome will have bud points when it grows, and these bud points will grow into meristematic seedlings, which can be separated and transplanted from April to May, and will soon be a new plant. Its sexual reproduction is sowing, although its seed germination rate is low, but once the seeds germinate and grow into adults, the growth will be very luxuriant and the disease resistance will be strong.

3. Planting

When the cultivated seedlings grow to 5-20 cm, they can be transplanted. the best transplanting time is from April to May. Dig out the seedlings, be careful not to damage the roots excessively, touch the roots with mud, and finish the transplanting within two days. When transplanting, it is necessary to control the row spacing of about 1 meter, and the plant spacing varies from 15 to 100 centimeters. Choose the transplanting plant spacing according to the soil fertility. If the soil fertility is better, it can be properly closely planted, otherwise it should be sparse properly. When transplanting, the stem should be upright in the middle, the root system should be extended, and the soil should be watered.

4. Field management

One week after planting, the survival rate of the seedlings should be checked in time. For the unsurvived plants, the heart leaves withered, while the surviving plants turned into the upper part of the heart leaf expansion. Plants that have not survived should be replenished and replanted in time, and by the end of June, plants that have survived are also easy to die of diseases and insect pests, so it is necessary to do a good job in pest control. After survival, topdressing and weeding should be carried out 2-3 times a year to loosen the soil and promote root growth.

The above is the introduction of Erna incense planting technology, hope to help you, want to know more related knowledge, please follow us.