Is commonly used Chinese traditional medicine delay Hu element poisonous? How to eat? When is Yanhusu planted? When to harvest? How?

Rhizoma Corydalis, also known as Rhizoma Corydalis, Rhizoma Corydalis, is a commonly used traditional Chinese medicine known as tuber, which is generally sown in early September. Is it poisonous? How do you eat it? When will yanhusu be planted? When will it be harvested? How do you plant it?

Is it poisonous?

Correct compatibility and taking yanhusuo will not be poisoned. However, Corydalis contains tetrahydropalmatine, which may cause liver poisoning. The Health Science Bureau of Singapore has set the daily intake limit of tetrahydropalmatine at 19 mg, so you are not allowed to take Corydalis herbal medicine on your own.

Introduction to how to eat:

1. Soak wine

Corydalis, a traditional Chinese medicine, can be made into health wine for people to drink at ordinary times. when using it as health wine, you need to prepare an appropriate amount of salt and yellow rice wine, grind the prepared Corydalis into fine powder, and heat the rice wine in a pot. After taking out, add five grams of Corydalis yanhusuo medicine powder, mix it up and drink it directly twice a day, which can regulate qi and promote blood circulation and relieve pain.

2. Boiled eggs

Yanhusuo can also boil eggs together with motherwort, usually take 10 grams of Corydalis yanhusuo, 30 grams of motherwort and 15 red dates, 5 to 6 eggs, wash them all with clean water, put them all in the pot and boil them, after the eggs are boiled, remove the shell and put them back in the pot, then cook for five to ten minutes, and then take out and eat eggs and drink soup, which can effectively prevent women from menstruation and abdominal pain during menstruation.

Harvest time:

The local upper stems and leaves withered and harvested. When harvesting and digging, first shallow ploughing, ploughing the soil while harvesting, and then turning deeply once after harvest, pick up the tubers and transport them back to the room to spread out to dry. When processing, wash the soil, load it into baskets according to size, place it in running water, scrub the skin with your hands, wash and drain. Then, when the tuber is boiled in boiling water until the cross section of the tuber is yellow, take it out and spread it on the bamboo mat to dry. After 4-5 days of sun exposure, you will sweat in the room, make the internal water seep out, and then dry it until it is fully dry, that is, the commodity. The quality is large, full, hard, yellow cross-section is better.

Planting techniques:

1. Land selection and preparation

The sandy loam with sunny leeward, loose soil and rich humus should be selected. After selecting the land, deep turning the soil 30Cm, combined with soil preparation, applying human rotten stable fertilizer 2000kg and cake fertilizer 200kg per mu (667m2, the same below), turning it into the soil as base fertilizer, leveling and raking fine, making a high border with a width of 1.3m, a wide 40cm, and opening a drainage ditch around.

2. Planting

When harvesting Corydalis yanhusuo, the tubers of medium size, neat, flat globular shape, about 1.5cm in transverse diameter, yellow and light in color, free from diseases and insect pests and scars were selected as seed stems and planted in late September. When planting, on the finished border surface, according to the specifications of row spacing 20cm, sowing width 10cm and ditch depth 8 ~ 10cm, the seed stem bud head was arranged upward and two rows staggered in the ditch according to the plant spacing 7cm, and then covered with fertile fine soil until the ditch was full.

3. Field management

Rhizoma Corydalis is a shallow root crop, so it is not suitable for intercropping. When the seedling height 3cm, per mu topdressing mature human and animal manure water 1500kg, in time to pull grass. In late January, apply a layer of cake fertilizer on the border, apply 50kg per mu, then cover a layer of rotten stable fertilizer, apply 2000kg per mu, and cover fine soil after fertilization. In case of rain, timely ditch drainage, drought irrigation. In addition to planting land, when buds appear in Corydalis, they should be removed in time to concentrate nutrients on root growth and increase yield.

4. Disease and pest control

(1) downy mildew

The leaf disease first, the initial brown irregular disease spot, when the humidity is high, the back of the leaf produces a white mildew layer, the diseased stem and leaf, quickly turn brown and die, and the plant dies. The control methods are as follows: one is to carry out flood-drought rotation, the second is reasonable close planting to improve the ventilation and light transmission conditions, and the third is to spray with 25% Ruidu wettable powder 600 × 800 times at the initial stage of the disease, once every 10 days, three times continuously.

(2) fennel nuclear disease

First, yellowish-brown or dark brown prismatic spots were produced at the base of the stem near the topsoil. When the humidity was high, the stem base was soft rotten and the plant lodged. The leaves were damaged and became bluish brown at first and then became bluish brown. When the disease is serious, the soil is covered with white cotton-like hyphae and black rat fecal sclerotia of different sizes. Prevention and control methods: first, implement flood and drought rotation; second, remove stagnant water in the field in time after rain to reduce field humidity; third, find diseased plants, eradicate them in time, and spread the disease area with lime powder to control the spread; fourth, in the early stage of the disease, use 65% Dysen zinc wettable powder 500 times liquid spray control.

(3) Rust

At the initial stage of the diseased leaves, there were round or irregular green disease spots with slight depression. The disease spot on the back of the leaf is slightly raised, and there is a sticky substance with rust yellow protuberance, which gives off a large amount of rust yellow powder after rupture. The control methods are as follows: one is to reduce the humidity in the field, and the other is to spray with 9.7% sodium rust 300-fold solution in the early stage of the disease.

Market Prospect Analysis:

Rhizoma Corydalis is a commonly used variety of traditional Chinese medicine, and its extract contains more than 20 kinds of alkaloids, which are mainly effective in promoting blood circulation and removing blood stasis, regulating qi and relieving pain. because it relieves pain without addiction, it can also be used in the late stage of cancer, which is similar to the function of "Panax notoginseng". Due to the high price of Panax notoginseng, as a substitute, the market demand of Rhizoma Corydalis is increasing, as China's traditional Chinese medicine products gradually begin to go abroad. The demand of Rhizoma Corydalis abroad is also increasing, with a total demand of more than 20,000 tons, nearly twice the production capacity.

In recent years, the production and sales of Rhizoma Corydalis in China are booming, and the price is rising steadily. With the more and more extensive application of Rhizoma Corydalis in the field of medicine, the demand is increasing, and the market prospect is very broad. Rhizoma Corydalis and Atractylodes macrocephala, Paeonia lactiflora, Fritillaria and so on are called "Zhejiang eight flavors".