Wind protection is a perennial herb of the Umbelliferae family and it has the effect of relieving wind, relieving wind and relieving pain. Zhoushan City Shuangying Aquatic Products Co., Ltd.  , https://www.shuangying-aquatic.com
First, characteristics
Windbreak height 30-80 cm. The roots are thick and grow vertically. Stems dichotomously branched. Leaves long-handled, triangular-ovate leaves, compound umbels terminal, flowers small, white. Double hanging fruit oval, mature split into two fruit. Flowering from June to July, fruiting period from July to August. Wild in the hillside, forest edge, grassland, sandy loam and many gravel sunny slopes, cold, drought-resistant. Avoid excessive humidity and rain, suitable for planting in the summer cool, high dry place.
Second, cultivation technology
1. Soil preparation and fertilization. For artificial cultivation, beds with deep soil, well-drained, loose and fertile, sunny loam, sandy loam or humus loam should be selected. Mushi Fertilizer 2000 kg. Large ridge bed, 130-140 cm wide, length as required, bed height 10-12 cm, bed spacing 30 cm.
2. Breeding technology. The main use of seed propagation, seedling transplanting and root propagation. Seed propagation is mainly broadcast live. (1) Live broadcast. Autumn and spring broadcasts are available. Before the autumn sowing in the north is more than that in the late autumn, it is better to use dry seeds for autumn sowing and to emerge in the spring. The emergence of seedlings is high, the rate of emergence is high, the texture of the roots is firm, and the powder is full and of good quality. Spring sowing should be planted in the middle or late May, when the ground temperature reaches 15°C or more. The germination rate of spring sowing sprouts is low. Seeds are soaked in warm water of 35°C for 24 hours before sowing. When sowing, in the well-made bed, according to the spacing of 20 cm, shallow 3-5 cm deep ditch, cover soil 1-1.5 cm, a little repression. About 2 kg sowing per acre. (2) transplanting seedlings. Seedlings can be sowed in spring or in autumn. In the whole seed bed, 10-15 cm spacing is used to open the ditch, and the depth is 5 cm. The seed is evenly spread in the ditch, and the soil is covered with 2 cm, a little suppression, and the sowing rate is 6-8. kg. Cover the grass, cover the grass, heat and moisturize, irrigating the water, and sow 20-25 days after sowing. After sowing, it should be timely watered in case of drought in spring, so that the soil moisture content of 40% in order to facilitate the emergence of seedlings. After weeding, we must continue weeding and weeding soil 3 times so that weeds will be no weeds. When the seedling height is 8 centimeters, the topdressing fertilizer is 1000 kg of Mushi fertilizer and 15 kg of superphosphate. (3) Root segment planting. When harvesting in the fall or early spring, roots with a length of more than 0.7 cm are selected and cut into small pieces of 3-5 cm in length. Plants are planted at a spacing of 5015 cm and the depth of the hole is 6-8 cm. Each hole is planted in a root section. Do not back it up and cover it with 3 cm. Mu with about 50 kilograms of roots. It is also possible to plant seedlings in the late autumn at a spacing of 103 cm from the plant height, and when the adventitious buds grow in the upper segment of roots or grow 1-2 leaves in the spring, the plants will be replanted.
3. Field management. (1) Weeding and weeding. Weeding should be repeated several times before June to keep the field clean. When the plants are sealed, the old leaves are removed first, and then the roots are ploughed to prevent lodging; in the winter, the soil is cleared and the soil is reused to facilitate the wintering of the roots. (2) Miao, Dingmiao and Miao Miao. When the height of the seedlings is 5 cm, the seedlings are planted at a distance of 10 cm from the seedlings; when the height of the seedlings is 10-13 cm, seedlings are planted at a spacing of 30 cm. The transplanted seedlings were transplanted to the seedlings. To transplant the soil with soil, water it in time after planting to facilitate survival. (3) Dressing. When the base fat is strong and grows strong, it may not be top-dressed in the first year. Otherwise, 50 kg of cake fertilizer or 5-10 kg of urea and 7 kg of diammonium phosphate may be applied to the top of the mulberry leaf before the mulching of the clumps. When returning to the green in the second year, the 1,000-kilogram applicator excreted urine and diammonium phosphate 7 kg, or 15 kg of ammonium sulfate and 7-8 kilograms of diammonium phosphate. (4) Irrigation and drainage. After sowing until emergence, soil should be kept moist to prevent soil surface compaction and affect seedling emergence. In the rainy season, attention should be paid to timely drainage and flood prevention in order to prevent rot. (5) Picking picks. For plants more than two years old, when they are convulsed and flowered from June to July, they should be removed in time when they are found, except for seedlings.
Third, harvest processing
Winter harvests before sprouting from late October to mid-November or spring. Breeding with seeds, windproof, can be harvested in the second year. In spring, the wind and roots can be harvested in the same year when the water and fertilizer are sufficient and the growth is lush. When the root length is 30 centimeters long and 1.5 centimeters thick, it can be harvested. Autumn harvest is harvested from October to November in the following year. When harvesting, deep trenches shall be opened from one end of the raft, excavated in order, and the remaining stems and soil shall be removed after the roots are dug out. Each mu can receive dry goods 200-300 kilograms.
Fourth, the main disease prevention
1. Powdery mildew. The main damage to leaves and tender stems, the beginning of the disease in the leaves and tender stems produce white near-circular spot white patches, and then gradually spread, the whole leaf and tender stems are covered with white powder. Severe onset, caused early deciduous and tender stems died. The disease is a fungal disease. The pathogens overwinter on the remnants of diseased plants with a closed capsule. In the spring of the following year, the ascospores are released when the temperature and humidity conditions are appropriate, and the primary infection is caused by direct invasion from the epidermis. The molecular spores produced on the diseased plants are frequently re-infected through wind and rain.
Control methods: (1) Agricultural control. Strengthen field management, timely removal of diseased bodies in autumn and winter can reduce the source of overwintering bacteria, pay attention to ventilation and light in the fields. (2) Chemical control. In the early stage of the disease, spray 40% fluorosiliconazole suspension 10,000 times and 12.5% ​​Zhixingxing WP 500 times, 2-3 times.
2. Spot blotch. The main damage leaves, stems can also be victimized. Leaf lesions were found on both sides of the leaf, round to suborbicular, 2-5 mm in size, brown, slightly lighter in the center, with small black dots on the upper part, which is the pathogenic conidiospore. The disease is a fungal disease. The pathogens overwinter on diseased leaves or diseased stems with conidial pathogens. Conidial spores of the late springs spread by airflow, causing initial infection and reinfestation.
Control measures: (1) Agricultural control. Properly dense planting, pay attention to ventilation and ventilation; scientific fertilizer management, improve the resistance of plants; clean the pasture before the winter, burn the sick and reduce the source of bacteria. (2) Chemical control. The diseased leaves can be removed at the beginning of the disease and sprayed with 1:1:100 Bordeaux mixture, or 50% carbendazim wettable powder 500 times, or 75% chlorothalonil wettable powder 600 times, or 70% mancozeb. Wettable powder 800 times liquid and other drugs, depending on the condition sprayed 2-3 times, 7-10 days interval, to prevent the spread of infection.
Wind-proof standardized cultivation techniques