Detailed Explanation of Angelica Dahurica Seed Prices and Planting Methods
Angelica dahurica, also known as Xue Zhi, Fang Xiang, Chuan Bai Zhi, etc., is a perennial tall herbaceous plant of the genus Angelica in the Apiaceae family. It mostly grows under forests, at forest edges, beside streams, in thickets and valley grasslands. Its root is used as medicine and has effects such as dispelling dampness, draining pus and promoting tissue regeneration, and promoting blood circulation to relieve pain. It is cultivated in some northern provinces and regions, mostly for local production and sales, with a small amount transferred outside the province. Let us now take a look at angelica dahurica seed prices and planting methods!
How much is angelica dahurica seed per jin?
The price of angelica dahurica seeds is about 30-50 yuan per jin, but it varies depending on seed variety, quality, place of origin and purchase quantity. Angelica dahurica is one of the preferred varieties among many medicinal herbs in autumn. It is mostly cultivated for medicinal use in the northern provinces. Planting is mainly by broadcasting, using 4-5 jin of seeds per mu, with a short planting cycle of 10 months to harvest. The yield per mu is about 500-700 kg, and the general benefit per mu is 5000-8000 yuan.
Sowing Methods for Angelica Dahurica
1. Seed selection: Angelica dahurica is propagated by seeds, and seeds from the current year should be selected. Old seeds from the previous year have a low germination rate or even fail to germinate. Under normal conditions, the germination rate of angelica dahurica is 70-80%. At a temperature of 13-20°C and sufficient humidity, seedlings emerge 10-15 days after sowing.
2. Sowing time: Spring sowing of angelica dahurica is around Qingming, but the yield is low and the quality is poor, so it is generally not adopted. Autumn sowing cannot be too early or too late. The earliest cannot be earlier than Chushu, and the latest cannot be later than Qiufen, so sowing should be done from early August to early September.
3. Seed treatment: Angelica dahurica is suitable for direct sowing and not for seedling transplanting. Transplanted plants have forked roots and poor root growth, affecting yield and quality. Before sowing, the seed wing membrane should be removed by mechanical means, then soaked in warm water (45°C) for 6 hours, removed, wiped dry and sown.
4. Sowing method: Before sowing angelica dahurica seeds, water the seedbed thoroughly. After the water seeps down, begin sowing. After sowing, water, sprinkle water or cover with grass to keep the soil moist regularly. Seedlings emerge 20 days after sowing. The sowing rate is more than 3 jin per mu.
Planting Methods for Angelica Dahurica
1. Irrigation and shallow hoeing: Water angelica dahurica once with freezing water before the soil freezes. After greening in the following spring, hoe shallowly once, and hoe again after half a year. The purpose of this hoeing is to cut off lateral roots so that the main root extends straight downward and reduces forking. After that, hoe another 4-5 times to keep the soil loose and free of weeds.
2. Timely thinning: Angelica dahurica is not thinned in the sowing year. In the following spring when the seedlings turn green and reach 7-10 cm in height, thin to a plant spacing of about 20 cm. When thinning, remove overly vigorous seedlings and overly weak seedlings, because overly vigorous seedlings tend to flower and set seed, and their root growth is poor, so they cannot be used as medicine.
3. Reasonable topdressing: After autumn sowing of angelica dahurica, only before winter freezing, together with irrigation with freezing water, cover the seedbed surface with horse manure or soil mixed fertilizer. This not only prevents freeze damage for the young seedlings overwintering, but also serves as the first topdressing in the following spring. After greening in the following year, apply cake fertilizer, chemical fertilizer or barnyard manure together with intertillage and loosening of the soil.
4. Removal of flower stalks: In May of the second year, a small number of angelica dahurica plants often bolt and flower due to particularly vigorous growth. The seeds produced by such angelica dahurica cannot be used for seed, nor can the plants continue to be used as medicine. Therefore, remove them early to avoid consuming fertilizer and affecting the growth of neighboring plants.
5. Timely harvest: Spring-sown angelica dahurica is harvested in the same year. Depending on the length of the frost-free period in different places, the harvest period is in mid-to-late October and early November respectively. Autumn-sown angelica dahurica is harvested in July-August of the second year when the leaves wither. The fresh yield per mu is 300-400 kg, and high-yielding fields can reach 800 kg.
Pest and Disease Control of Angelica Dahurica
1. Leaf spot disease
[Damage characteristics] The pathogen is a type of imperfect fungus among fungi. It mainly damages the leaves. The lesions are polygonal, dark green at first, later grayish white, with small black spots on them, namely the pycnidia of the pathogen. In severe cases, the leaves wither and die.
[Control methods] ① Remove diseased remains and burn them in a centralized manner. ② Spray with 1:1:100 Bordeaux mixture or 65% zineb wettable powder at 400-500 times dilution.
2. Yellow swallowtail butterfly
[Damage characteristics] The larvae feed on the leaves.
[Control methods] ① Manually capture and kill larvae and pupae. ② Spray with 90% trichlorfon at 800 times dilution, once every 5-7 days, for 3 consecutive times, or spray with Qingchongjun at 500 times dilution.
3. Aphids
[Damage characteristics] Adults and nymphs damage tender leaves and the top parts.
[Control methods] Same as the pests and diseases of Astragalus membranaceus and their control methods.
4. Red spider mites
[Damage characteristics] Adults and nymphs damage the leaves.
[Control methods] ① Clean the garden in winter, pick up and burn all dead branches and fallen leaves, and after cleaning the garden spray 1 degree Baume lime sulfur mixture. ② Starting in April, spray 0.2-0.3 degree Baume lime sulfur mixture or 25% chlordimeform water agent at 500-1000 times dilution, once a week, for several consecutive times.