Asarum, also known as Chinese asarum and pot grass asarum, is native to Northeast my country, Sichuan, Jiangxi, Hubei, Zhejiang and other places. Among them, the quality of Asarum produced in Northeast China and Optimal. Below we introduce Asarum planting technology and cultivation management methods for your reference. 1. Site selection and land preparation methods for Asarum

Choose a broad-leaved forest or a mixed coniferous and broad-leaved forest on a shady slope. It is more ideal if the surrounding area is open and light can enter from all sides. . First remove the weeds, rake and level them, and make a sorghum border of 1 to 1.2 meters wide and 15 to 20 cm. The middle of the border surface is slightly higher and the sides are slightly lower.

The length of the border is determined by the terrain, but it should not be too long. The width of the working road is 50cm. When the soil is poor, apply green manure or decomposed fertilizer on the border surface, and then prepare the land for planting. 2. Propagation methods of Asarum

Asarum is often propagated by rhizomes and seeds.

(1) Propagation of rhizomes and divisions: dig out the planted Asarum or dig up wild Asarum roots from April to May or from August to September in autumn. Do not damage the roots and buds when digging. For buds, it is best to bring some mother soil to facilitate survival.

When planting, the row spacing is 25cm, the plant spacing is 20cm, and a pit is dug 15cm deep. Then put the seedlings into the pits, put 2 to 3 plants in each pit, with the buds pointing upward and the fibrous roots spread out. Apply a little soil to suppress the roots, then water the pits, and then cover them tightly with soil.

(2) Seed propagation: From July to August, sow in holes. When sowing, first sow on the prepared border, with a row spacing of 10cm and a plant spacing of 6cm. Dig a hole 1.5cm deep and put seeds in each hole. 4 to 5 seeds, cover them evenly with soil, press them slightly, and cover them with leaves or branches to facilitate the germination of the seeds. 3. Cultivation and management methods of Asarum

1. Loose soil

After the plant survives, often loosen the soil and weed it to keep the soil loose and weed-free in the border. Every autumn, soil should be cultivated in combination with fertilization. The soil should be less for seedlings and thicker for large seedlings. 2. Water and shade

If the soil is dry after transplanting, water should be watered in time. Water at appropriate times in the future and keep the soil moist at all times. If cultivated in the shade of a mountain, watering is generally not required. In case of severe drought, watering should also be done to keep the soil moist.

When cultivating in the open air, build a shed with branches, reeds, sorghum straw and other materials in summer, or interplant tall-stem crops for shade to prevent direct sunlight. 3. Top dressing

In the autumn of the spring transplanting year, top dressing should be carried out in combination with soil cultivation. For every 10 square meters, 0.7 to 1 kg of superphosphate or decomposed ring fertilizer, green manure, mixed with some humus soil or fine sand soil should be applied to the plants. beside.

Before wintering, where conditions permit, a layer of decomposed mule and horse manure can be covered, which not only acts as top dressing, but also prevents cold and retains water. In the second and third years, top dressing is done once every year at the end of May and in autumn, and the method is the same as in the first year. 4. Prevention and control of pests and diseases of Asarum

The disease found in a few old areas where Asarum is cultivated is Sclerotinia sclerotiorum. Generally, Asarum is basically disease-free before it is 6 years old. The disease gradually develops over 7 years, mainly because the Asarum root system is too dense, the soil is too compacted, and there is no air circulation, which creates conditions for the occurrence and development of the pathogen.

Control method: spray 50% carbendazim 1000 times solution on the leaves 2 to 3 times; in severe cases, water 50% carbendazim 500 times solution into the rhizosphere or before Asarum germinates in spring Spray 1% copper sulfate solution on the border for control; if a single plant is found to be sick, it should be dug out immediately.

Pest control: There are cutworms, black caterpillars, locusts and other damage. Black caterpillars and locusts bite the leaves, and in severe cases most of the leaves are eaten. Cutworms cause the most serious damage, biting buds and cutting off petioles and rhizomes. 5. How to harvest and process Asarum

With proper management after transplanting, it can be harvested after 2 to 3 years of growth, when the number of leaves increases from 2 to 3 to 20 to 40 leaves.

Between July and August, after the fruit matures, use a shovel to dig deeply next to the plant, carefully remove the entire plant, remove soil and impurities (do not wash), and place in a cool and ventilated place to dry. It can be used as medicine after drying. For every 4kg of fresh medicine, 1kg of dry food can be processed.

It is better to plant Asarum with green leaves, pungent aroma to the nose, pungent taste and numbing tongue, and no impurities or soil.