Planting method of Houttuynia cordata Thunb

Herba Houttuyniae is produced in the provinces south of the Yangtze River Basin in China. As early as the late 1980s, Gaoping Town, Guanghan City, Sichuan Province, introduced field-scale planting, which has led to nearly 10,000 mu of planting area in surrounding villages and towns, forming the largest planting base in China. Let's take a look at the planting method of Houttuynia cordata Thunb.

Propagation methods of Houttuynia cordata Thunb

Herba Houttuyniae can be propagated by ramet, cuttage and rhizome. Ramet propagation is from late March to April, and the mother plant can be dug up and transplanted on the seedbed of sandy soil or directly transplanted. Cuttings can be propagated in spring and summer, cut disease-free and insect-free branches as cuttings, cut and grow 12-15 cm, cuttings in flowerpots, row spacing 16 cm × 10 cm or 14 cm × 10 cm. Watering after insertion, shading, rooting and transplanting seedlings. Rhizome propagation can be carried out in 2-3 months, select disease-free, white, stout rhizome, cut into small segments with more than 2 axillary buds, open shallow trenches in flowerpots to raise seedlings or plant. Winter and early spring should pay attention to anti-freezing and heat preservation, summer and early autumn should pay attention to shading and moisturizing.

Planting method of Houttuynia cordata Thunb

The cultivation of Houttuynia cordata Thunb should be cultivated under the conditions of natural shade (half shade and half yang) and loose and fertile basin soil. It can be planted all the year round, but it can be harvested in winter, spring and early summer. Generally speaking, the best time for sowing is around the Beginning of Spring. Trench strips in the same direction in the flowerpot, 8-10 cm deep, 13-15 cm wide, and 20-25 cm apart. Put the seed root of Houttuynia cordata Thunb in the ditch, each ditch parallel two rows, the distance between the seed stem segments is 5-8 cm, continuously placed, connected from head to tail. The seed stem should be placed evenly, then covered with soil, and should be kept warm and moisturized after planting. If you plant in the summer high temperature season, there must be 3 nodes to ensure that the middle node can sprout and take root.

If planted before winter, plastic film or newspaper should be covered to facilitate normal growth and development in winter and early spring and obtain high yield.

Daily Management of Houttuynia cordata Thunb

After planting, if drought occurs in the seedling stage, it should be watered sooner or later to moist the border soil. Before the seedlings survived, weeding and topdressing were carried out for 2-3 times, and nitrogen fertilizer was the main fertilizer. Each time weeding combined with topdressing, 20 grams of urea can be applied per square meter, dilute at first and then concentrated. Nitrogen fertilizer was mainly applied after each harvest to promote plant germination.

After entering the autumn harvest, it is mainly to apply phosphorus and potassium fertilizer, and cultivate the soil to facilitate overwintering, so as to lay a good foundation for sprouting in the coming year. Watering should be timely in the dry season, drainage should be timely in the rainy season, and water accumulation in flowerpots should be avoided for a long time.

Weeds should be removed in time, shallow ploughing and loosening soil should be carried out in time, and appropriate amount of mature organic fertilizer should be applied between rows combined with loose soil. For plants with overgrown stems and leaves above ground, coring should be carried out to inhibit the growth and height and promote the occurrence of lateral branches.

Harvest and Storage of Houttuynia cordata Thunb

After the planting of Houttuynia cordata Thunb, the tender stems and leaves can be picked when the seedling height is 8-10 cm, and then be harvested every 10-20 days. The picked tender stems and leaves can be listed while fresh or dried in the sun. After half a year of planting, the underground stem can be dug in time according to the needs of the market, washed and removed impurities, while fresh on the market or used for flooding processing.

The underground stem reserved for seed can be picked at any time. The whole herb of Houttuynia cordata can be used as medicine, can be harvested at any time, washed, dried, stored or put on the market.