High-yield cultivation techniques of Dipsacus

Dipsacus, alias Chuan Duan, Sichuan Dipsacus. With underground rhizome as medicine, it has the functions of tonifying liver and kidney, strengthening muscles and bones, stopping bleeding and relieving pain. It is mainly for the treatment of sore waist and knees, joint soreness, metrorrhagia, threatened abortion, fall injury and so on. Mainly produces Sichuan and other provinces.

Morphological characteristics; perennial herbs of Dipsacaceae. Main root or several, concomitant. The stem has 6-8 ribs, with sparse spiny hairs on the ribs. Basal leaves long stipitate, leaf blade pinnatifid, apex lobes larger; cauline leaves opposite, short stalked to sessile. Head round, Corolla white. The tip of fruit bract has a spiny long beak, 4-angled involucre is Obovate, and the tip of achene is exserted.

I. growth habits

Dipsacus prefers a warm and humid environment. Hardy. For the soil requirements, the sandy loam with deep, loose and fertile soil and rich in organic matter is better. Heavy clay, saline-alkali land and low-lying land are not suitable for planting.

II. Soil preparation and fertilization

Select high-lying, well-drained fields and cultivate them carefully. Combined with soil preparation, apply sufficient basic fertilizer: 5000 kg of soil miscellaneous fertilizer, 20 kg of urea and 50 kg of phosphorus and potassium fertilizer per mu, and then form a high bed 1 meter wide, waiting for sowing.

Third, sowing seeds

Dipsacus reproduces with seeds. The sowing time is divided into spring sowing and autumn sowing. Spring sowing before and after the Qingming Festival; autumn sowing before freezing. Before sowing, make a shallow ditch on the finished border surface, then spread the seeds evenly into the ditch, rake flat so that the soil cover no seeds. Water to preserve soil moisture to facilitate the emergence of seedlings. The sowing rate is 2 kg per mu.

IV. Field management

After cutting off the seedlings, pay attention to ploughing and weeding. Pay attention to watering in dry weather, drain in time in overcast and rainy weather, set seedlings when seedling height is 10 cm, row spacing is 20-10 cm. The Beginning of Autumn topdressing once: 10 kg urea per mu and 10 kg potassium dihydrogen phosphate per mu.

Prevention and control of diseases and insect pests

The main disease of Dipsacus is nematode disease, which can be controlled by 5 kg carbofuran per mu or methyl isosalidophos per mu. Control aphids with omethoate.

VI. Harvest and processing

It was dug after the stems and leaves withered after autumn. The ploughed underground rhizome is removed from the soil, cut off the Reed head, dried and then sold as medicine. The yield is 250 kg per mu.