The rhizome likes a warm and humid climate, avoids drought, and prefers fertile, loose, and well-watered soil. The best adapted pH value is 6.6-7, and the soil moisture is 50%-80%. It would be best if it can reach about 80%. The entire growth cycle of Zheer roots is 12 months. Zheer roots have a wide adaptability to temperature. The underground stems can still survive the winter safely when the temperature is below 0 degrees. Seedlings will grow when the temperature reaches 12 degrees. The optimal temperature for the growth of stems and leaves is 16-20 degrees, and the temperature during the maturity stage of underground rhizomes is 20-25 degrees. It likes moisture and tolerates waterlogging, and requires moist soil.

(1) Land selection. In order to obtain higher rhizome yield, the land plot should be selected for planting in sandy loam soil that is flat, has sufficient water sources, convenient drainage and irrigation, deep tillage layer, suitable soil structure, good physical and chemical properties, and moderate fertility. First loosen the soil, then spread a layer of leaves or wrap the grain stems 10~15cm, use local materials, mix the soil with calcium magnesium phosphate fertilizer, use 4~5 bags per mu, cut the thick folded ear roots into 5cm length and spread them on the leaves, and then put them on the leaves. The prepared soil cover is about 10cm, and a large amount of potassium fertilizer and trace elements are applied twice during the seedling stage.

Colonization. When planting, open a ditch 50-60 cm wide, the depth of the ditch is 2/3 of the thickness of the field mud, put the straw into the ditch and spread it flat, then sprinkle phosphate fertilizer and plant ash (100 kg of phosphate fertilizer and 150 kg of plant ash per mu) , and then cover it with a layer of soil before planting the rhizome, you must measure the temperature to see if the temperature in our land is particularly high. If you find that the temperature in our field is particularly high, although the rhizome we plant at this time Said to grow very fast.

Production practice shows that using open compartments for border cultivation can not only increase the soil thickness and facilitate field management, but also improve the yield and quality of Houttuynia cordata. Compared with traditional plain cultivation, it has stronger Advantages. Land preparation and bordering should be based on local conditions, and low-lying land should be carefully managed to create positive borders for agricultural production in order to achieve good results.