Detailed explanation of Angelica sinensis seedling-raising techniques to help you grow strong seedlings
Angelica sinensis is a perennial herb with extremely high medicinal value and enormous market demand, which is why it attracts many farmers to grow it. However, if you want to achieve high yields, doing a good job of raising seedlings is extremely important. So how should Angelica sinensis be raised from seed? Let's learn the relevant knowledge together.
1. Site selection and fertilization
Angelica sinensis seedling raising is suitable on cool, moist half-mountain slopes with short sunshine duration, weak light, and a good shaded environment, which is suitable for seedling growth. If it is wasteland, first carry out land clearing, remove shrubs and weeds completely, dry them in the sun, pile them into small heaps and burn them into smoked ash, then plow 20-25 cm deep, rake fine and level, and make beds. Before sowing, apply base fertilizer. Generally, apply 3000 kg of farmyard manure and 30-40 kg of diammonium phosphate per mu, spread them evenly on the surface, and mix them into the plow layer soil along with plowing.
2. Seed selection and sowing
Choose seeds that are three-year-old, normally mature, well preserved, free of pests and diseases, free of mildew, and with a high germination rate. One day before sowing, dress the seeds with carbendazim and root rot powder. Late-maturing seeds grow vigorously after sowing, have high sugar content, and are very prone to bolting, so old seeds should not be selected. Before sowing, carefully select and remove shriveled seeds. The suitable sowing time is from early May to early June. Generally, 5-6 kg of seed is used per mu. Broadcast the seeds on the bed surface, press lightly, and cover with a thin layer of soil so that the seeds and soil are closely connected, which helps germination. After sowing, cover with a layer of rice straw to provide shade and retain moisture, which helps seedling emergence.
3. Seedbed management
After Angelica sinensis seeds absorb water and swell, they can germinate when the ground temperature is above 10°C, and germination is fastest at a ground temperature of 20°C. Under suitable conditions, seedlings can emerge in 7-10 days, and generally full emergence occurs 20 days after sowing. When the seedlings grow to 3 cm and have three leaves, loosen the soil and weed once. When the third leaf grows, loosen the soil and weed once more to promote growth. During the first loosening and weeding, lightly lift the seedbed covering material. During the second loosening and weeding, remove the covering straw to avoid affecting seedling growth. During the seedling stage, control the reproduction of pests and diseases, and at the same time apply nitrogen fertilizer in a timely manner to reduce the bolting rate.
4. Lifting seedlings and storage
Lift the seedlings in September-October. When lifting seedlings, pay attention to the seedling root system, because damaged roots lead to a low survival rate after transplanting. In addition, carefully screen when lifting seedlings, and remove small seedlings, pest- and disease-damaged seedlings, and mechanically damaged seedlings. After lifting the seedlings, pull off the leaves on the seedlings, tie 100 seedlings into a bundle, place them in a ventilated, cool, and dry place with the seedling heads facing outward, and pile them into a conical shape so that they lose part of their water and their respiration is reduced. In November, choose a ventilated, well-drained, cool place, dig a large pit, and stack them with semi-dry raw soil layer by layer, one layer of seedlings and one layer of soil. When 30 cm from the ground, do not store seedlings further. When filling with soil, pile it into a small hill to avoid water accumulation.
The above is an introduction to Angelica sinensis seedling-raising techniques. We hope it can help you. To learn more related knowledge, please keep following us.