Miyi polygonum multiflorums are well-known specialties of Miyi County, Panzhihua City, Sichuan Province. Their lecithin content is not only higher than that of soybeans or deep sea fish oil, but also more than three times that of polygonum multiflorums growing in other regions. They also contain high content of Se and Fe elements.
Miyi polygonum multiflorum gains its name from its place of origin - Miyi County, Panzhihua City, Sichuan Province. As a part of Pan-Xi Region, Miyi County features complicated geological structure, which results in extremely abundant mineral resources. Lecithin content of Miyi polygonum multiflorum is not only higher than that of soybeans or deep sea fish oil, but also more than three times that of polygonum multiflorums growing in other regions. They also contain high content of Se and Fe elements.
As Pan-Xi Region's largest planting and production base of polygonum multiflorums, Miyi County adopts an operating mode of ‘companies + bases + farmers’ for planting polygonum multiflorums. Generally, their growth period takes two to three years before harvest, so rotatory planting and harvest is conducted in the bases, thus ensuring successive supply. Sichuan Pingda Biology, the largest local biological product company, signs planting and purchasing agreements with planting villages, on which farmer households agree to plant polygonum multiflorums according to the GAP planting technical regulations provided by the company, and the company purchase them with a guaranteed minimum price. In the process of planting, Pingda Biology not only provides farmers with polygonum multiflorum seedlings or seeds, bio-fertilizers, agricultural film and other means of production, but also appoints one professional technician for each planting area of 300 mu to offer timely technical solutions to their problems, making sure that one mu will produce 1,500 kg of polygonum multiflorums each year. During planting, the company cultivates its own technicians who have trained more than 5000 farmers, and offers about 200 jobs in the production and processing department.
Sichuan Pingda Biology has engaged in developing the plantation of polygonum multiflorums in the county, and at the end of 2010, its planting area reached 3,000 mu. Polygonum multiflorums’ growth period takes two years before harvest, so rotatory planting is conducted in the bases. The company is planning to plant 20,000 mu of polygonum multiflorums in the county in three years. With per mu yield of 1,500 kg, the average annual output is expected to reach 15,000 tons.
The growing area of Miyi polygonum multiflorums is in the current administrative region of Miyi County, Sichuan Province.