Codonopsis pilosula seedling culture technology

Abstract

The invention relates to a codonopsis pilosula seedling culture technology which is characterized by comprising the following steps: selecting Sichuan mesa or a dual-shady slope with the altitude of 2,200 to 2,600 m, and performing deep tillage, land preparation and fertilizer application in the late of March; immediately covering land with a black mulching film with the breadth of 1.2 m; sowing the seeds in the early and middle of April according to a hole sowing method; covering a seedbed with 50 percent of a black sunshade net at a covering height of 28 to 35 cm; after seedlings are emerged tidily, uncovering the sunshade net and extirpating weeds at the same time, and covering the land with the sunshade net immediately after the weeds are extirpated; properly performing topdressing to prevent pest and damage disease; in the late of October, covering the seedbed with fine soil which is 4 to 6 cm in thickness for overwintering; harvesting and digging codonopsis pilosula in time before codonopsis pilosula seedlings are germinated in spring. The seedbed is covered with the sunshade net, so that the yield increasing effect is obvious, and the yield is increased by 82.6 kg / mu; the seedling root is averagely lengthened by 3.9 cm, and thickened by 0.5 mm, so that the seedling quality is improved. The sunshade net is low in cost, and the operation is simple and feasible; the manual weeding cost is reduced by 180 RMB / mu.

Description

technical field [0001] The invention belongs to the technical field of raising seedlings of traditional Chinese medicinal materials, and in particular relates to a technology of raising seedlings of Codonopsis pilosula. Background technique [0002] Codonopsis pilosula is used as medicine with dried roots, sweet in taste and flat in nature. Can invigorate the middle and replenish qi, harmonize the stomach and promote body fluid, eliminate phlegm and relieve cough. For deficiency of the spleen with less food and loose stools, weakness of limbs, palpitations, shortness of breath, dry mouth, spontaneous sweating, prolapse of the anus, and erection of the vagina. It has the effects of invigorating the middle and replenishing qi, invigorating the spleen and benefiting the lungs. Codonopsis Codonopsis grown in central Gansu is called Baitiao Codonopsis Codonopsis. Codonopsis Codonopsis is one of the bulk Chinese herbal medicines grown in Minxian County and even Dingxi area, with...

AI Technical Summary

Problems solved by technology

The main disadvantages of the prior art are as follows: one is to cover the seedbed or furrow surface with gramineous straw, which wastes a lot of resources. Farmers have to plant gramineous crops such as green grass, oats, and barley in the previous year, or go up the mountain to harvest wild crops in summer. Grass plant orange stalks require a lot of manpower. To cut more than 300 kg of dry orange stalks requires 10 to 12 labors, equivalent to labor costs of 1000 to 1200 yuan, which is not conducive to the implementation of the policy of returning farmland to pasture and grass

The third is that the traditional seedling mulching method is not conducive to the promotion of pollution-free Chinese herbal medicine cultivation technology, which increases the cost of seedling cultivation. In addition to labor for weeding, field disease and insect control, etc., the average cost per mu increases by about 1,700 yuan.