Field management technology of Rhizoma Corydalis

Corydalis yanhusuo alias Corydalis, Corydalis, Corydalis is a perennial herb of Corydalis, its tuber can be used as medicine, when the famous traditional Chinese medicine, often used to relieve pain, promote blood circulation and disperse blood stasis, fall injury and so on. In the production process, field management is extremely important. Let's take a look at the field management technology of yanhusuo.

1. Loosen the soil and weed

The root system of Rhizoma Corydalis is distributed shallowly and generally grows along the topsoil, so it is not suitable for ploughing, so as not to expose the topsoil, but in order to promote its rhizome growth, loosening soil and weeding is inevitable. Before and after the Beginning of Winter, when the rhizome begins to grow, the scraper can be used to gently loosen the soil on the topsoil, pay attention to the depth, so as not to hurt the rhizome. After the Beginning of Spring, it is not appropriate to loosen the soil, weed should be weeded in time, so that there are no weeds in the field.

2. Drainage and irrigation

After planting, it is the rooting season of the plant. in case of dry weather, it is necessary to water in time to keep the soil moist and promote the early rooting of the plant. During the period of rapid expansion of underground rhizomes before and after Ching Ming Festival, sufficient water is needed. If the soil is too dry, it will affect the yield. Therefore, it is necessary to irrigate in time during drought, and timely drainage in the rainy season to reduce the incidence of disease and the possibility of rotting roots, and to irrigate frozen water before overwintering in the north to facilitate overwintering.

3. Fertilization

The growth period of Rhizoma Corydalis is relatively short, and it can be harvested from March to April, so it is necessary to apply sufficient base fertilizer before planting. When most of the barnyard manure is rotten in winter, rake the unrotten residue into the ditch and apply 500kg to 1000 kg of human manure per mu. When the plant germinates in spring, the first fertilizer is applied, generally 250-500 kg of human feces and urine per mu, diluted with water and watered. In flowering, 1000 kilograms of human feces and urine are applied per mu. Ammonium sulfate 10 kg, also diluted with water.

4. Pest control

In order to send downy mildew in high temperature and rainy season, the disease has a short incubation period and spreads rapidly. it is a main disease affecting the yield and quality of Rhizoma Corydalis. It can increase the application of phosphorus and potassium fertilizer and enhance the disease resistance. when the disease occurs, it can be sprayed with ethyl phosphorus and aluminum once every 10-15 days for 3-4 times. The main underground pests, such as silkworms and white filariasis, can be caught manually or controlled by chemical root irrigation.

The above is the introduction of Yanhusuo field management technology, hope to help you, want to know more related knowledge, please follow us.