High-yield cultivation techniques of Fangfeng

Windproof, alias Guan windproof, white taro and so on. To underground roots into medicine, there are solutions to the surface sweating, wind drying effect. Indications influenza, rheumatoid arthritis, convulsions and other symptoms. Those mainly produced in the three eastern provinces, Inner Mongolia, Hebei and other provinces are called Guan Fangfeng or North Fangfeng; those produced in Yunnan, Guizhou and other provinces are called Cloud Fangfeng; those mainly produced in Gansu, Shaanxi and other provinces are called West Fangfeng. But the quality of north windbreak is better.

Description: Umbelliferous perennial herbs, 30-80 cm tall, glabrous, basal leaves 5-12, base expanded into sheath, leaf blade triangular-ovate, 2-or nearly 3-pinnate, entire; cauline leaves smaller, often incomplete leaves near branch apex or only broad leaf sheath; florets white, compound umbels terminal, often arranged into cymose panicles; no involucral bracts, rarely 1; Bracteoles 4-5, strip to lanceolate, umbellules 4-9 flowers, sepals short triangular, more conspicuous; petals 5, white, stamens 5, ovary inferior, double hanging fruit, mature fruit yellowish green, dark yellow; long ovate, verrucose, slightly compressed; fruit 5-ribbed, apex with residual upper disk (stylopodium) and calyx.

A, growth habits windproof like cool climate, cold, drought, fear of water damage. The soil requirements are not strict, but it is good to cultivate with deep, loose and fertile sandy loam. Low-lying land and saline-alkali land are not suitable for planting.

Second, soil preparation and fertilization select high terrain, good drainage plot, deep ploughing and fine cultivation. Combined with soil preparation, apply sufficient base fertilizer: 3000 kg of miscellaneous fertilizer, 50 kg of phosphorus and potassium fertilizer and 20 kg of urea per mu. Then make a bed, level it and wait for sowing.

Third, sowing windbreak seed propagation, can also be divided into root propagation. Sowing time has spring sowing and autumn sowing, spring sowing around Qingming; autumn sowing around frost. Seed propagation in the whole good ridge surface first with a shallow furrow, and then the seeds evenly scattered into the ditch, and then rake flat so that the soil cover no seeds can be. Sowing rate 3 kg per mu. Rootstock propagation selection without pests, uniform thickness of the annual windbreak root cut into 5 cm long segments, air half a day, so that wound healing. And then the seeds on the surface of the whole plot. Row spacing 50×15 cm, 50 kg seed root per mu. Water preservation, in order to survive.

Fourth, field management should pay attention to intertillage and weeding after windbreak. For large-scale planting, soil treatment with field herbicides before seedling can effectively control various weeds. Dry weather timely watering, rainy weather pay attention to drainage. With seed propagation of the field, seedlings 10 cm high should be thin seedlings, weak to stay strong. Topdressing once before and after the beginning of autumn: topdressing urea 5kg and potassium dihydrogen phosphate 5kg per mu. The windbreak more than two years old is easy to sprout, except for the seed plants, the part of the sprout should be cut off to reduce nutrient consumption and promote the growth of underground rhizomes.

V. Prevention and control of diseases and insect pests Windproof disease is mainly powdery mildew, which can be controlled with triadimefon in the early stage of disease. Pest is mainly yellow butterfly larvae bite leaves, flower buds, available pyrethroid pesticides to kill.

6. Harvesting and processing North windbreak is harvested in autumn 2-4 years after planting, and cloud windbreak is harvested in autumn of that year. When the stem and leaf of windbreak wither on the ground, cut off the stem and leaf on the ground first, then dig out the underground rhizome, remove the net soil, dry it and sell it as medicine. The yield per mu is 350 kg.