High-yield cultivation techniques of Notopterygium

Notopterygium, alias Silkworm Qiang, Xi Qiang. The underground rhizome is used as medicine, which has the effect of relieving the surface and dispelling cold, preventing dampness and relieving pain. Clinical treatment of cold, headache, body pain, limb soreness and other diseases. Mainly distributed in Shaanxi, Gansu, Qinghai, Sichuan, Xizang, Inner Mongolia, Shanxi, Ningxia, Qinghai, Hubei and other places.

Morphological characteristics

1. Qiang Huo: it is a perennial herb of Umbelliferae, 60-120 cm high, and the whole plant has a special aroma. The rhizome is stout and elongated in the shape of a bamboo node. There are withered leaf sheaths at the base of the rhizome. Stem erect Terete hollow purplish. Cauline leaves and lower stem leaves stipitate, petiole base with membranous leaf sheaths 2-7 cm long; 3-coming 3-pinnately compound leaves, compound umbels; involucral bracts 3-6, linear, caducous, umbellules 7-18 (39), 2-10 cm long, umbellules 1-2 cm in diameter; bracteoles 6-10, linear; flowers numerous, petals white, ovate to oblong-ovate; meristems oblong.

2. Notopterygium wilfordii: perennial herbs, 80-180 cm high. There are well-developed rhizomes and many residual leaf sheaths at the base. Stem erect, Terete, hollow, with vertical fine stripes, purplish. The cauline leaves and the lower part of the stem have a stalk, and the lower part has a clasping leaf sheath; the leaves are large, 3-type 2-3-pinnately compound. Compound umbels terminal and axillary; involucral bracts 1-3, linear-lanceolate, caducous; umbellules 10-17 (23), 3-12 cm long; umbellules 1-3 cm in diameter, with many flowers; petals yellowish, Obovate; meristem suborbicular.

I. Life habits

Notopterygium likes a cool and humid climate. Resistant to drought and shade. Avoid continuous cropping. The requirement of soil is not strict, but the loam or sandy soil with deep soil layer and loose and fertile soil is the best.

II. Soil preparation and fertilization

Select high-lying, well-drained fields and cultivate them carefully. Combined with soil preparation, apply sufficient basic fertilizer: 3000 kg of soil miscellaneous fertilizer, 20 kg of urea and 50 kg of phosphorus and potassium fertilizer per mu. Then make beds and wait for sowing.

Third, sowing seeds

Notopterygium is propagated by seeds. The sowing time is spring sowing and autumn sowing. Spring sowing takes place around the Qingming Festival. Autumn sowing before freezing.

Before sowing, first open a shallow ditch on the finished border surface, and then spread the seeds evenly into the ditch, cover the soil, water and preserve soil moisture to facilitate the emergence of seedlings. The seeds of Notopterygium can also be sowed evenly on the whole border surface according to the row spacing of 30 × 15 cm. The sowing rate is 3 kg per mu. Notopterygium can also be propagated with underground rhizomes. The root strips with strong growth and free of diseases and insect pests were selected and cut into 5 cm segments, each with budding eyes 1 Mel 2. Hang it for a while, and after the wound heals, it will be planted on the finished border surface according to the row spacing of 30 × 20 cm. Watering to preserve soil moisture, in order to survive.

IV. Field management

After Notopterygium notopterygium seedlings, attention should be paid to ploughing and weeding, watering to preserve moisture in dry weather, and timely drainage in overcast and rainy weather. The Beginning of Autumn topdressing once: 10 kg urea per mu and 10 kg potassium dihydrogen phosphate per mu. Spread a layer of soil fertilizer after clearing the fields in winter. After the budding of Notopterygium notopterygium, in addition to planting, the buds should be removed to prevent nutrient consumption.

Prevention and control of diseases and insect pests

The disease of Notopterygium notopterygium is less, if found, it should be controlled according to the conventional method. The main pests are yellow butterfly larvae bite leaves, control, with pyrethroid pesticides to kill. Killing underground pests with phoxim

VI. Harvest and processing

Notopterygium notopterygium is generally harvested in autumn 2-3 years after sowing, and the aboveground stems and leaves are withered. The underground rhizome of Notopterygium notopterygium is planed, the Reed head is removed, the soil is cleaned, dried or dried, and then it can be sold as medicine. The yield is 300 kilograms per mu.