Zizhu is one of the main sources of medicine for the development of the Xiangxi region's key project, “Jingqing Group Pharmaceutical Valley in the west of Hunan Provinceâ€. It is a fast-growing shrub herb of the genus Verbena in the verbena family. Its roots, stems, leaves, flowers, and seeds can all be used as medicines. Qingrejiedu, cooling blood to stop bleeding, anti-inflammatory myogenic, anti-cancer and other unique features. Zitong County is rich in resources. As far back as 1996, it was included in the base of Zizhu Zhengqing Pharmaceutical Company Zizhu Raw Material Supply Base. From 1998 to 2004, the county's "Zizhu High-quality, High-yield Cultivation Experiment and Demonstration" project, after seven years of scientific and technological research, achieved the intended purpose of high-quality and high-yield production. Practice has proved that cultivation of purple beads can be recovered in the first year of investment (500 yuan / mu), the second year of pure net income of 800 yuan, 3 years after the annual net income of more than 1,500 yuan. Purple pearl is a subtropical plant, hi, warm, wet, afraid of the wind, drought, suitable weather conditions for the annual average temperature of 15 ~ 25 °C, annual rainfall of 1000 to 1800 mm, the soil is red and yellow as well, in a cool environment better. There are many germination of purple beads, and the root system is very developed. It is a shallow root tree species. It began to grow leaves in March and was fully developed in early April. The fruit and fruit germinate in late May and the flowering period is relatively long. From early June to early October, the seeds are flowering. The shoots grow fast. There are three shoots a year. Spring shoots, summer shoots, and autumn shoots grow at a rate of 2 to 3 meters a year. The leaves begin to fall in late November. The harvest period is in mid-late and late November. Often mixed with Masson pine, Camellia, Phyllostachys pubescens, Mangosteen, Azalea, Camellia oleifera, Litsea cubeba, Barwelet and Liquidambar formosana. Its cultivation points are as follows: Garden selection. Purple bead plantation site should choose no water quality, air and heavy metal pollution, transportation, drainage, irrigation and convenient leeward drying of the sun, Tianshuitian, two Yutian or slope cultivation. During the period from September to October, planting trenches with a depth of 30 cm and a width of 30 cm are planted. Apply 3 to 4 kg of organic fertilizer per meter of planting trench and mix well with the soil. Tianshuitian and Ergantian should open up drainage ditch. Scientific planting. The best time to plant purple beads is from November to next March when it rains. When planting, Miao Zheng is required to have a proper depth and step in the root soil. Planting in other periods affected the survival rate and the current year's yield. The spacing is 0.3 meters, 1.5 meters and 1500 acres. Fertilizer management. Purple beads are not resistant to waterlogging. Pay attention to drainage in the rainy season. Irrigation in the dry season can effectively increase production. Purple Pearl basal fertilizer is best for biogas residue fertilizer, pig cow dung, dried cake fertilizer and biological bacterial fertilizer. In April-October, the application of thin manure water every 2 months is very beneficial to the growth of purple beads. In April, cultivating and weeding should be done once (we cannot use herbicides). After cutting down, loose soil. Apply 3 kg of organic fertilizer per metre to apply basal fertilizer. Timely harvesting. The best period of purple bead harvesting is the late October to early November before the growth has stopped but the leaves have not yet fallen. The harvest will affect the quality of purple beads. (Council and Association of Science and Technology)
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