The latest course on planting techniques and methods of grass coral

Grass and coral, also known as mountain incense, Guanyin tea, nine-section flowers, etc., are perennial evergreen subshrubs, red beads full of trees, auspicious and rich, giving people a pleasant sense of natural beauty. they can not only make elegant and small potted plants, but also be used in gardens and courtyards for greening embellishments, with high medicinal, edible and ornamental value. let's take a look at the planting techniques of grass corals.

Growth habits of grass coral

Grass corals are found in Anhui, Zhejiang, Jiangxi, Fujian, Taiwan, Guangdong, Guangxi, Hunan, Sichuan, Guizhou and Yunnan. Wild grass corals often grow in shady places under evergreen broad-leaved forests on slopes and valleys at an altitude of 400 to 1500 meters. Suitable for warm and humid climate, like cool environment, avoid direct sunlight and high temperature and drying. Like humus layer deep, loose and fertile, slightly acidic sandy loam, avoid barren, consolidated, easy to stagnant heavy soil.

Propagation methods of Grass Coral

1. Cuttage propagation: grass coral usually selects 1-2-year-old branches from strong growing plants from March to April, cut them into 2-3 nodes, 10-15 cm long cuttings, bundle them into small handfuls, soak their base ends in 0.05ml / L No. 3 ABT rooting powder solution for 2min, or dip them in 1ml / L NAA solution for quick cutting. The cuttings took root in about 30 days and began to sprout.

2. Sowing and propagation: grass corals are usually sown from February to March. On the whole seedbed, a sowing ditch with a depth of 2cm and 3cm is opened according to the row spacing of 20cm. The seeds are evenly sown in the ditch and covered with fire soil ash or fine soil. The seedlings emerged about 20 days after sowing, and the cover grass was removed in time. If the seedling stage management is fine, it can be planted in the nursery from November to December of the same year.

3. Ramet propagation: grass coral ramet is carried out in early spring or late autumn, the aboveground part of the plant is cut off 10 cm from the ground for medicine or as cutting material, and then the root is dug up and divided into small plants with root system according to the stem. The plant was directly planted in the field according to the row spacing of 20 × 30 cm. Continuous watering is required after planting to keep the soil moist. Pay attention to weeding and fertilization after survival. This method is simple, the survival rate is high, the plant growth is fast, but the propagation coefficient is low.

Planting techniques of Grass Coral

The main results are as follows: 1. Transplanting seedlings: grass coral seeds and seedlings propagated by cuttings are generally transplanted from November to December of the same year or February to March of the following spring. In the whole border, plant according to the row spacing of 20 × 30 cm, and pour through the root water. After survival, it is necessary to strengthen field management in time. Check seedlings in time after transplanting. If dead seedlings are found to be missing, they should be replanted with soil to ensure the whole seedling.

2. Irrigation and drainage: grass coral should remove the weeds in the field in time and loosen the soil properly. It is generally ploughed 3-4 times a year to keep the soil loose and free of weeds in the field. Always keep the soil moist after planting, and irrigate and water in time in case of drought. Rainy seasons, such as stagnant water in the field, should be eliminated in time so as not to cause rotten roots.

3, reasonable topdressing: grass coral likes fertilizer, generally topdressing once every spring and summer, applying ammonium nitrate or urea 6kg / mu, potassium chloride 2kg / mu, watering. Combined with soil cultivation in winter, applying farm manure once, applying fence fertilizer or retting fertilizer to the rhizosphere of the plant, and covering the soil at the edge of the ditch can not only keep warm and prevent cold, but also promote the early growth and rapid growth of the plant in the next spring.

4. Intercropping shade: grass coral has strong shade tolerance and likes diffuse light, so it is suitable to plant under evergreen broad-leaved forest. If planted on hillsides and fields without shade, tall stalk crops such as corn can be intercropped in the field, and tall stalk crops can be used for proper shading. Through the management of intercropping crops, it can not only promote the growth of grass coral, but also increase economic income.

5. Pest control: grass coral has just changed from wild to domestic species, and its resistance to diseases and insect pests is strong. At present, no serious diseases and insect pests have been found, and there is no need for prevention and control. However, if the shading condition in the field is poor, in the summer when the sun is strong, there will be leaf burns, leaf tip or leaf green blight, and serious whole leaf scorch. Measures such as cooling by irrigation and improving shading conditions can be adopted to reduce the damage.

6. Harvest and processing: the content of effective components in grass coral leaves is higher than that in roots and stems, and the old green leaves in the lower part of the plant can be picked and dried or directly processed into extract during the growing period. In autumn, cut the plant from 5cm to 10cm from the ground, wash it and dry it, then use it as medicine. It can also be directly processed into extract and handed over to the pharmaceutical factory as the raw material for the production of proprietary Chinese medicine. In the year of general planting, 200,300 kilograms of dry products can be produced per mu, and then the yield can be increased year by year, with a maximum yield of more than 600 kilograms per mu.