Cultivation techniques of Houttuynia cordata Thunb planting time

With the continuous excavation of the health-preserving effect of Houttuynia cordata Thunb, all kinds of snacks and dishes derived from Houttuynia cordata Thunb in the market are generally welcomed by consumers. for a time, the market of Houttuynia cordata Thunb is in short supply, and the planting industry of Houttuynia cordata Thunb is still in vogue. So what is the correct planting way of Houttuynia cordata Thunb?

Cultivation techniques of Houttuynia cordata Thunb

1. Cultivated seed stem

Houttuynia cordata Thunb is a perennial persistent root plant. Although there are seeds for reproduction, most of the artificial cultivation methods use the old underground rhizome as the propagation material. The seed stem can be obtained directly from the wild houttuynia cordata in the first year, and the seed can be collected from the high-yield field in the next year. The old stem with thick and fat, long internodes and no diseases and insect pests should be selected.

Dig and select when the stems and leaves are withered and yellow in winter, bury the selected seed stems in the ground and spend the winter naturally. Before germinating in the following spring, the seed stems are cut into segments with a length of 6cm, each section needs 3 nodes, and when the summer is hot and dry, there must be 3 nodes to ensure germination. If the number of seed stems is abundant, the seed stem segment can be slightly longer, 15 Mel 20 cm.

2. Cuttage seedling

First of all, the soil should be ploughed deeply before sowing, at a depth of about 26 centimeters. After deep ploughing, rake broken pieces of soil to flatten the top and remove the grass roots. It should be made into a deep trench and high border according to 170 Mel 200 cm wide, which is prone to stagnant water or in rainy seasons. Plots with good drainage and no waterlogging can be used as flat beds to keep the soil moist. Then, the seed ditch was planted horizontally on the finished border surface, with a depth of 8 mi 10 cm, a width of 13 mi 15 cm and a row spacing of 25 mi 30 cm.

Apply base manure after trenching, apply fully rotten barnyard manure 3000ml 5000 kg, calcium superphosphate 50 kg and potassium sulfate 15ml 20kg (or plant ash 100kg) every 667 square meters, barnyard manure must be fully mature, otherwise stable manure fermentation will burn the seed stem. Seed stems are placed along both sides of the ditch, one every 7m / 10cm. After sowing, they are covered with soil and watered. If the water content of the land is low, or the climate is dry when sowing, the bottom water should be irrigated before sowing.

3. Fertilizer and water management

Houttuynia cordata Thunb likes moist soil and is afraid of drought. It should be watered once 4 days after cuttage to promote stem germination. In particular, it is necessary to ensure adequate soil moisture in the high temperature and dry season, and always keep the soil moist after emergence. The soil water content should always be kept at 75% 80% of the maximum water holding capacity. Sprinkler irrigation and furrow irrigation are better for irrigation. Do not flood irrigation to avoid soil consolidation. The seedlings should be fertilized as high as 3 cm, and thin human feces and urine should be irrigated every 15 days or so.

During the vigorous growth of stems and leaves in early summer, 50% rotten human feces and urine can be poured between rows, once every 15 days, the application rate is 1500m2 / 2kg, and the last topdressing is increased by 10kg urea, so that the plant is closed before drought, which not only shades and moisturizes, but also provides sufficient nutrients to supply underground stem growth. Soil topdressing is generally not allowed after row closure, but 0.1% KH2PO4 0.2% foliar topdressing can be used. Every 7 days, a total of 2 murals for 3 times.

Planting time of Houttuynia cordata Thunb

The planting time of Houttuynia cordata Thunb varies according to different propagation methods, the planting time of Houttuynia cordata Thunb propagated by ramet is about late March to early April, and the planting time of Houttuynia cordata Thunb propagated by rhizome can be planted from February to March.

Harvest of Houttuynia cordata Thunb

In order to fully grow and develop Houttuynia cordata Thunb and achieve the goal of high quality and high yield, the harvest time is generally controlled in late autumn and winter. When harvesting, the aboveground part is harvested first, the whole plant is cut off, washed and cut, and then dried and packaged can be sold to pharmaceutical companies. Underground tender stems can be harvested throughout the winter, dug out with a hoe and shaken the soil. The tender stems and leaves of Houttuynia cordata Thunb are also edible and are generally picked in batches from July to September. If the tender stems are picked underground, they should not be picked in early summer.

Planting benefit of Houttuynia cordata Thunb

Planting houttuynia cordata produces quick results. Planted in the middle and lower reaches of the Yangtze River from the end of February to the beginning of March, it can be harvested in batches or out of season after 3 months of planting. The yield per mu is about 3000 kg, and the high yield is 5000 kg. Because of its fishy smell, no diseases and insect pests were found during the growth period, so it is a pollution-free and pollution-free vegetable with best-selling market and high efficiency.

The reproductive ability of Houttuynia cordata Thunb is very strong, so the planting difficulty of Houttuynia cordata Thunb is relatively small in the medicinal material planting industry, in addition, the output of Houttuynia cordata Thunb is also considerable, and some characteristics of Houttuynia cordata Thunb itself make Houttuynia cordata Thunb become a green and healthy vegetable in people's mind, which is very popular in the market.