How to plant Codonopsis pilosula

Codonopsis pilosula is a common traditional Chinese medicine, which has the effect of tonifying qi and invigorating spleen and enhancing immunity, and has rich economic benefits. So, how to grow Codonopsis pilosula?

1. Land selection and preparation

Generally, the soil of the high-yield planting land of Codonopsis pilosula is sandy loam, and the soil structure is good, rich in organic matter, sufficient nutrients, good water storage and drainage, relatively high topography, generally selected in the semi-sunny slope, at the same time, continuous cropping can not be carried out. During soil preparation, deep ploughing is carried out combined with base fertilizer, which is mainly based on farm manure or organic fertilizer, which is spread evenly and then ploughed deeply, and finally ditches are made to wait for sowing.

two。 Seed selection and budding

When selecting seeds, try to choose seeds with full particles, bright color and no diseases and insect pests, then put the selected seeds in the sun for a day or two, then soak the seeds in a bag with warm water, soak the seeds out after one day, and put them in a temperature suitable for seed budding. generally, most of the seeds will appear white in a week or so, and then you can sow seeds.

3. Seedling raising and transplanting

There are two methods for planting Codonopsis pilosula, namely, direct seeding and seedling transplanting. Direct seeding is to sow seeds on the whole ground at a distance of 30 cm between rows and 10 cm between plants. However, in order to ensure the emergence rate and yield of Codonopsis pilosula, usually using the method of seedling transplanting, first of all, the treated seeds need to be sowed on the seedling bed, after a period of careful management. The best time is to transplant in March, and it is best to transplant with soil, so that the survival rate is higher, and the density of transplanting can be divided into several types, namely, 35, 30, 25 cm between rows. And the distance between plants 15 cm, 10 cm, 5 cm, the specific need to carry out specific implementation according to the degree of fertility of the planting land and the purpose of planting.

4. Field management

We need to check seedlings, inter-seedlings and replenish seedlings in the field, and then carry out weeding in time, usually about a month after planting, and weeding in the later stage needs to be carried out according to the growth of Codonopsis pilosula and the growth of weeds in the field. In order to restrain the growth of branches and leaves of Codonopsis pilosula, the tips of some branches and leaves need to be removed appropriately, and finally, topdressing and watering should be carried out in time. It is necessary to carry out specific water and fertilizer management according to the different growth periods of Radix Pseudostellariae, not partial application of nitrogen fertilizer, but timely drainage.

5. Pest control

Codonopsis pilosula will not have any diseases and insect pests under normal circumstances, but it is still necessary to control root rot and rust. These two kinds of diseases and insect pests are both caused by high temperature and high humidity, and can be controlled with carbendazim. The pests are mainly underground pests, red spiders and mice, underground pests can be irrigated with trichlorfon, red spiders can be controlled with thiazox, and rodent pests can only be killed by traps.