Bupleurum is a perennial herbaceous medicinal plant of the genus Umbelliferae. Bupleurum has antipyretic, sedative, analgesic, Shuganxiaoyu, antibacterial, antiviral (influenza virus) and other effects. Chaihu is suitable for growing in the shallow mountainous areas, forest margins, forest gaps, grasses and furrows in the shallow mountainous areas of 260 meters to 1500 meters above sea level. Chaihu in Jixian County is cold and drought-tolerant, and has strong adaptability. The ideal soil is loam, sandy loam or humus soil. The pH value is 6.2~7.0, and the organic matter content is ≥1.2%. The main quality characteristics of this product are thick and strong, with fewer lateral roots, yellowish brown color and strong aroma. Volatile oil ≥ 1.20%, saikosaponin ≥ 1.0%. 1. Site preparation The planting area should be planted with loose, fertile, well-drained loam and sandy loam or gentle slopes. It should not be planted in clay and water-prone areas. Before planting, it is necessary to carry out multiple plowings to make the soil finely divided, the soil is soft and flat, and the fermented manure is applied to 1000 kg/mu, which is turned into the soil and flattened. 2. Reproduction methods (1) Live broadcast: Before the freezing in winter or in the spring, the seeds of the previous year are selected, and the seeding amount of the mu is 2.5 kg to 3.0 kg. Ditch according to the line spacing of 10 cm, the depth of the ditch is 1.5 cm, and the seeds are evenly removed into the ditch. The soil is re-grown by 1 cm. After a little pressure, the water is watered. After the sowing, keep the soil moist. (2) Seedling transplanting: choose Xiangyang place, both seeding and spreading. The line spacing is 10 cm. Spread the seeds evenly in the shallow ditch, re-soil, and sprinkle a little water. Cover with plastic film or cover straw after sowing. When the seedling height is 5 cm, the seedlings with soil mites are dug and planted in the field. 3. Field management Before and after emergence, it is necessary to do a good job of irrigation and drainage, to keep the soil moist, in order to facilitate emergence. Water should be drained in time during the rainy season. After the emergence of Bupleurum, when the seedlings reach 4~5 cm, the first seedlings are planted, the cultivating and weeding are carried out, and the dense seedlings and the weak seedlings are lost. When the height of the seedlings reaches 8~10 cm, the seedlings should be fixed. The seedlings should be fixed with 1~2 strains of every 10 cm of seedlings, and 2~3 strains of strong seedlings per hole. Plants that are missing in the field should also be replanted at this time, and the planting seedlings should be watered in time. After the planting of Bupleurum, it grew slowly in the same year and was generally not closed. The grass should be gently sown with a small hoe after the long leaves are fixed, before the rainy season, and after the rainy season. When the seedling height is 15 cm, it should be applied 7-10 kg of sulphate per acre, 14-15 kg of superphosphate, and 3-4 kg of potassium chloride after cultivating and weeding to improve soil fertility. When the second old flower buds are planted, it is necessary to timely cultivate and topdress nitrogen, phosphorus and potassium fertilizers, and do a good job of irrigation and drainage at any time. After the plants are closed, the cultivating is no longer carried out, and the weeds are only removed by hand. Generally, the herbicides are not used for weeding, so as to avoid the loss of the roots. In addition to the decomposing farmyard base fertilizer, Bupleurum has to carry out multiple topdressing during the two-year growth period. The first seedling fertilizer was combined with cultivating and weeding in the first inter-planting period, and the dilute human and animal manure water was applied to 22,500 kg/ha. The second seedling fertilization was combined with cultivating and weeding in the fixed seedlings, and the degraded manure and manure 3 10,000 kg/ha; The third top dressing in the seedling height of 30 ~ 40 cm, combined with cultivating weeding, oilseed rapeseed cake (other cake fertilizer can be) 750 ~ 900 kg / ha and thin manure water 22,500 kg / ha to the second year with quick-acting The fertilizer is applied twice, each time applying diammonium phosphate 150~225 kg/ha or superphosphate solution for root dressing; it can also be sprayed 2~3 times with 0.2%~0.3% potassium dihydrogen phosphate solution. The above fertilization schemes can be used interchangeably to promote rapid expansion of the roots. Bupleurum prefers to grow in a humid environment, but is most afraid of water impregnation. In the rainy season, it is necessary to clean up the ditch in time to ensure smooth drainage of the ditch and reduce the occurrence of disease in the field. After many fine managements, the aboveground part of Bupleurum is vigorously grown, and flowering consumes a lot of nutrients inside the plant, which affects the nutrient accumulation in the roots and is not conducive to high yield. The timely removal of tillers and newly grown flower buds can promote the accumulation of nutrients in the roots of plants. 4. Pest control In the prevention and control of Bupleurum pests and diseases, it is necessary to follow the pesticides that do not apply heavy metal pesticides and high toxic and high residues, and adhere to the prevention measures based on agricultural measures, using biological agents pesticides or high-efficiency and low-toxic pesticides. 5. Harvesting and processing When harvesting, the roots will be shaved. After mining, the soil will be shaken off, the residual roots will be removed, the roots will be cut, the sections will be dried, and the medicine will be packaged. This article URL: How does Bupleurum's planting technology apply fertilizer and common pests and diseases? Canned Asparagus Tiips And Cuts Canned Asparagus Tiips And Cuts,Asparagus Tiips Canned,Asparagus Cuts Canned,Asparagus Tiips Tin ZHANGZHOU TAN CO. LTD. , https://www.zztancan.com