Analysis of planting techniques and benefits of health vegetable Houttuynia cordata
Houttuynia cordata is named for its fish-boiled taste in its roots and leaves. It is a health-care vegetable for both medicine and food. It has the effects of clearing away heat and detoxification, diuretic swelling, resolving qi, analgesic, relieving cough, expelling the wind, and strengthening the stomach. In addition, its tender stems and roots can be used for cold salad or soup, which is crisp and delicious, and is very popular among people.
Houttuynia can prevent various diseases such as flu, pneumonia, and eczema. It is mainly distributed in the southern provinces of China, especially in Sichuan, Hunan, Hubei, Guizhou, Jiangsu and other provinces.
Growth habit
Houttuynia cordata grows in low-humid sloping land, ditch side, and field sorghum. It requires high water content. It requires sufficient water supply throughout the growing season to keep the soil moist. It grows well under warm and humid conditions, is afraid of frost, and has underground stalks. Cold-tolerant, wintering below -15 °C, germination at 12 °C, growth temperature of 16-25 °C; soil and light requirements are not strict, with organic-rich soil as well.
Site preparation
1. Land plot selection. In order to obtain higher rhizome yield, the selection of plots should be flat, the water source is sufficient, the irrigation and drainage is convenient, the plough layer is deep, the soil structure is suitable, the physicochemical properties are good, and the fertility is moderate.
2, fine land preparation. After selecting the plot, thoroughly remove the weeds and the former crops, and plough the sun. Before planting, deep-plowing and flattening the base fertilizer to make the plot loose, fertile and smooth.
3. Apply enough base fertilizer. Before planting, the farmer's fertilizer is 1 to 1.5 tons per mu, the plant ash is 150-200 kilograms, and the ploughing is 1 to 25 centimeters deep, so that the fertilizer is thoroughly mixed with the soil.
4, planting and planting. The soil is mixed with the fertilizer and then opened. The width is 2-2.5 m, the width of the ditch is 30-35 cm, and the depth is 25-30 cm.
Breeding method
Houttuynia cordata generally adopts asexual reproduction, which is divided into rhizome propagation and cutting propagation. The rhizome propagation effect is better, saving time and labor, and the yield is higher.
Rhizome breeding: can be planted all year round, but in winter, spring and early summer, it is acceptable to plant. The best time for general sowing is around the spring. The roots are excavated before the plants are not germinated, and cut into 8- A 10 cm long, small section with more than 2-3 axillary buds and a fibrous root. According to the line spacing 20-25 cm, open a shallow groove 5-8 cm deep, the cut roots are discharged into the ditch at a spacing of 8-10 cm, covering the soil 6 to 10 cm, the soil is moist without watering, when the soil is dry Appropriate irrigation to keep the soil moist, and seedlings grow after 15-20 days.
Field management
1. Cultivate weeding. After the planting of Houttuynia cordata, the weeds should be diligently removed. Before the closure, weeds can be used to remove weeds. After the closure, weeding is carried out manually, and weeding and weeding are combined to do the management of fertilizer and water.
2. Water and fertilizer management. Keep the soil moist throughout the growing season. The growth in the early stage is slow, and the seedlings survive until the closure of the line. The urea is applied 8-10 kg of urea for seedling fertilizer. The growth of the stems and leaves is relatively large, and the compound fertilizer is applied for 10-15 kg per mu. Later, it was changed to root dressing, and it was sprayed once every 7 days with 0.4% potassium dihydrogen phosphate solution for 4-5 times. When the plant height is more than 10 cm, the soil will be cultivated in time, and the polluted dirty water will not be watered during the whole growth period. It is forbidden to apply garbage, unfertilized manure (animal) manure, nitrate nitrogen (ammonium nitrate), etc. before harvesting. No fertilizer is applied for 30-35 days.
3. Remove the flower buds. When the upper part of the ground is long, the tender stems and leaves should be harvested in time; when the flowers are budded, the flower buds should be removed in time to prevent the flowering from consuming a large amount of nutrients and inhibiting the growth of the underground stems.
Pest Control
Houttuynia has few pests and diseases, and generally does not require chemical control. Root rot can be applied by a solution of 70% methyl thiophanate 1000 times.
Harvesting processing
The tender stems and leaves can be harvested from April to October and can be harvested many times. After entering the underground stem products for 10 months, they can be harvested according to market demand. After harvesting, the washing will be put on the market.
Planting benefit
Houttuynia has a per mu yield of 2000-2500 kg, and if it is managed properly, the yield can reach 3,500 kg. At present, the price of Houttuynia cordata on the market is about 7 yuan per kilogram, and the economic benefits are still considerable.
The above is the planting technology and benefit analysis of Houttuynia cordata. The content is for reference only. If you want to know more about agricultural technology, please pay attention to the Hui Nong School!
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