White fresh skin planting technology white fresh skin planting common pests and diseases

White fresh skin, also known as white husk, eight-strand cattle, mountain peony, sheep fresh grass, etc., is a perennial herb of the genus Rutaceae, mainly produced in Liaoning, Hebei, Sichuan, Jiangsu and other places, born in the slopes of the slopes, mountain bushes Under the forest and under the forest, the root skin medicine has the functions of clearing heat and dampness, removing wind and detoxifying, and fighting cancer. The cultivation value is higher. Let's take a look at the planting technology of white fresh skin!

White fresh skin growth habit

Wild white fresh skin grows in the sandy hills, forest margins and low shrubs containing sandy gravel soil. It has strong adaptability, like warm and humid, hi-light, cold tolerance, drought tolerance and water tolerance. The seeds are round and bright, with a black weight of 20 to 21 grams, and a suitable germination temperature of 16 to 20 °C. The conditions are suitable. 15 to 18 days after sowing, the seedlings will be planted. The plant height will be 10-15 cm in the current year, and the winter will naturally winter. The two-year-old plant has a height of more than 20 cm and a main root length of 15 to 20 cm. The 3-year-old seedlings began to bloom and bear fruit. The cultivated white fresh skin grows for about 150 days, and is re-earthed in late April. The ground part begins to wither in late September.

White fresh skin

White fresh skin is mainly propagated with seeds, first concentrated seedlings, and grown for 1 to 2 years before planting. The nursery site should choose sandy loam or gentle slope with good sunshine, fertile soil and good drainage. It is not suitable for low-lying and easy-to-salt, saline-alkali or heavy clay. It is best to have irrigation and drainage conditions. Deeply turn the ground 25 to 30 centimeters, and at the same time, according to the fertility situation, apply 1,500 to 2,000 kilograms of fully decomposed farmyard manure per acre. Make a bed after breaking the clods. The bed is 1 to 1.2 meters wide and 15 to 20 cm high. The transplanted land should be selected as a gentle slope. It should be noted that the drainage is good. The mountainous area can be cultivated by the sunny hillside wasteland, orchard and artificial young forest. It can also be cultivated by the contracted sericulture workshop and the low shrub space of the garden.

White fresh skin sowing and transplanting

1. Sowing: After harvesting, the white fresh skin seeds are dried for 5-7 days, stored in a cool and ventilated place. From early October to early November, the seeds are planted in autumn. If it is not allowed to be planted in autumn, the seeds are placed outdoors for low temperature freezing. Sowing from mid-April to early May. In the autumn, seedlings are planted early and the seedlings are in Qi. When planting, flatten the bed surface, open the ditch according to the row spacing of 12 to 15 cm, the ditch depth is 4 to 5 cm, step on the bottom grid, and sow the seeds together with the fine sand into the ditch, cover the soil 3 to 4 cm, and the seeding amount per square meter. 10 to 15 grams. After the cover soil, the bed surface is slightly suppressed, and the conditional bed surface is covered with a layer of straw moisturizing, which is beneficial to emergence.

2, transplanting: white fresh skin seedlings grow for 1 to 2 years, transplanted in the autumn after the upper part of the withered or before the spring. All the seedlings in the seedbed are excavated, sorted by size, planted separately, row spacing 25-30 cm, plant spacing 20-25 cm, according to the length of the seedling roots ditch or digging, the top buds are placed upwards in the ditch, so that Miao Genshu Expand. The cover soil should be 4 to 5 cm above the top bud, and the cover should be stepped on. After the drought, the water should be poured after planting.

White fresh skin management

1. Nursery field: When the white fresh skin nursery field emerges, the cover of the bed surface should be removed one by one. During the growth period, the grass should be weeded frequently, and the rainy season should be done in the field. The 2 year old seedlings should be properly applied with nitrogen and phosphorus fertilizer during the growth period. Foliar spray fertilizer can also be used with 0.3~0.5% potassium dihydrogen phosphate solution. After the autumn part of the ground is withered, the remaining stems and leaves are removed, and the bed is covered with soil 2 to 3 cm to facilitate the wintering of the seedlings.

2, transplanting the field: white fresh skin transplanting field often loosening soil weeding, after each weeding, we should cultivate the soil to the base of the stem to prevent the young roots from exposing the surface. From July to August, drain the water during the hot and rainy season to prevent the roots from causing rotten roots and increase the application of phosphorus and potassium fertilizer. Plants that do not pick seeds cut the flower buds at the beginning of the gestation buds to facilitate root growth. After the autumn has withered, the stems and leaves are cut off in time, and the bed is covered with soil or covered with a layer of fully decomposed farmyard manure, commonly known as “capped manure”, which is beneficial to the wintering of the roots and the growth of the next year.

White fresh skin harvesting

1. Harvesting: The white fresh skin is grown for 2 to 3 years after transplanting. The medicinal roots are harvested in the autumn after the aboveground part of the plant is withered or before the spring is returned to the green. First cut off the stems and leaves on the ground, and excavate all the roots from the end of the seedbed, remove the dirt and stubble, and let it dry in the sun. Remove the roots from the sun to the semi-dry, remove the roots from the middle hard core (xylem), and then dry until fully dried. 2.8 ~ 3.3 kg of fresh roots can be dried for 1 kg, and the output per mu is 300-350 kg.

2, seed retention: staying in the field should be selected for more than 4 years of robust plants, should be strengthened management, increase the application of phosphorus and potassium fertilizer during the flowering season, pay attention to drainage during the rainy season. The seeds begin to mature in mid-July, and they should be cooked with the seeds to prevent the fruit petals from naturally cracking and let the seeds fall. The green color of the fruit begins to turn yellow and can be taken when the fruit flap is about to crack. Cut the fruit every day before 10:00 in the morning, let it dry in the sun, and cover it with a transparent plastic cloth to prevent the seeds from hitting him. The whole fruit is dried and cracked, then beaten with a wooden stick to remove the peel and impurities, and the seeds are stored or planted in autumn.

White fresh skin disease prevention

1. Downy mildew: Downy mildew usually begins in March, and occurs mostly in the leaves. The leaves are born with brown spots, and gradually produce a layer of frosty mildew on the back of the leaves, so that the leaves die, 40% ethyl phosphate can be used. Wet powder 200 letter liquid, or 50% toxic mycelium 500 times liquid, methyl thiophanate 800 times liquid spray.

2, Sclerotinia sclerotiorum: Sclerotinia sclerotiorum usually occurs in mid-March, which is harmful to the base of the stem. It is a yellow-brown or dark-brown water-stained fusiform lesion. In severe cases, the stem base rots, the ground part is wilted, and the soil surface is visible. The hyphae and sclerotia can be mixed with 3% sclerotium or 1:3 lime and grass charcoal and then withdrawn into the kneading dough or applied with 5% sodium chloronitrate powder.

3, rust: rust usually occurs in the upper and middle of March, in the early leaves, yellow-green lesions, after the yellow-brown, leaf ridges on the back or stem, rust-colored powder, 60% of the use of zinc can be used The wet powder is sprayed 500 times or sprayed with 25% powder rust WP 1000 times.

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