How to plant Platycodon grandiflorum? scientific planting techniques of Platycodon grandiflorum

As a kind of Chinese herbal medicine, Platycodon grandiflorum is used relatively early in traditional Chinese medicine, but the planting time of Platycodon grandiflorum is not long. In the past, Platycodon grandiflorum was mostly picked by drug farmers, with the development of modern science and technology. Platycodon grandiflorum has gradually become an important planting industry for drug farmers.

How to plant Platycodon grandiflorum

1. Seedling soil finishing

Platycodon grandiflorum seeds should be prepared with seedling soil or seedling block before sowing, and separate small pot seeds can be used as far as possible for convenience, so as to avoid the phenomenon of overgrowth caused by different germination time. Then fill the soil and spray it with a spray can, and then sit in a larger basin, so that the soil can be completely drenched.

2. Sowing method

The seed of Platycodon grandiflorum is very small, like dust, even if you take a breath, it seems to be blown away, so you must be careful, it is best to have something underneath, spread a layer of white paper, so that even if you drop it accidentally, you are not afraid to find it. Then there is a toothpick with a little bit of water, click on the seed, it will stick to the toothpick, and then it will be much more convenient to plant in the nursery basin. It should be noted that the seeds of Platycodon grandiflorum do not need to be covered with soil, just put them directly on the surface of the soil.

3. Moisturizing after sowing

After the seeds of Platycodon grandiflorum are put away, if there is a lid on it, you can cover it with moisturizing. If you don't have a lid, you can cover it with a layer of cling film used at home, so that you can maintain humidity and open it for air every day. You can also spray water with a very small spray can every day, and if you feel you don't have a good grasp, you can sit in the basin to keep the humidity. But remember, don't put it in it 24 hours a day, just spray it gently or sit for a while every day. Seeds also need to breathe, soaking for a long time will spoil the seeds, but not easy to germinate.

4. Germination management

Platycodon grandiflorum seeds usually germinate about 15-20 days after sowing, and later ones also germinate in 30 days. Be patient, don't give up on them, and keep them humid until they sprout. After germination, there is no need to cover the lid, you can scatter the light, but do not expose yourself to the sun, because the newly sprouted seedlings are very fragile, and it is easy to dry them to death. At this time, you don't have to put it in the basin every day. You can put it after a little bit of dryness. Just sprout as gently as possible, because the seedlings are very small and will fall as soon as you spray them with force.

Growth characteristics of Platycodon grandiflorum

Platycodon grandiflorum is a deep-rooted plant, the root diameter increases with age, the length of the main root can reach more than 15 cm in that year, and the vigorous root growth period is from July to September in the second year. When digging, the root length can reach 50 cm, and before the seedling is unearthed to 6 cm, the stem grows slowly, and the stem grows faster from 6 cm to before flowering (April-May), and slows down after flowering. When the temperature is below 10 ℃ in autumn and winter, the roots overwinter, and the annual seedlings can survive the winter safely at a low temperature of minus 17 ℃. Seeds begin to germinate when they are more than 10 ℃, and the optimum temperature for germination is 20-25 ℃. The germination rate of annual seeds is 50% 60%, and that of biennial seeds is about 85%. And sprout quickly and together. The life span of seeds is one year.

Platycodon grandiflorum likes cool and humid environment, and wild Platycodon grandiflorum likes cool and humid environment, and wild Platycodon grandiflorum likes cool and humid environment, and wild Platycodon grandiflorum likes cool and humid environment, and wild Platycodon grandiflorum likes cool and humid environment, and wild Platycodon grandiflorum likes cool and humid environment, and wild Platycodon grandiflorum likes cool and humid environment, and wild Platycodon grandiflorum likes cool and humid environment, and wild Platycodon grandiflorum likes cool and humid environment, and wild Platycodon grandiflorum likes cool and humid environment, and wild Platycodon grandiflorum Platycodon grandiflorum likes the sun to withstand drought, but avoids stagnant water.

Distribution of Origin of Platycodon grandiflorum

Platycodon grandiflorum is mainly distributed in Northeast, North, East and Central China provinces, as well as Guangdong, Guangxi (northern), Guizhou, southeastern Yunnan (Mengzi, Yanshan, Wenshan), Sichuan (east of Pingwu and Liangshan) and Shaanxi. It is also found in the far East of North Korea, Japan, Russia and the southern part of East Siberia.

In June 2012, Taihe County, Anhui Province, was known as "the hometown of Platycodon grandiflorum" by the Flower and Food Professional Committee of China Food Industry Association.

Planting prospect of Platycodon grandiflorum

Wild Platycodon grandiflorum is distributed all over the country. at present, the wild dried Platycodon grandiflorum is about 16 yuan per kilogram on the market. There are only three major producing areas in Inner Mongolia, Taihe County, Anhui Province and Zibo, Shandong Province. In recent years, the yield has dropped again and again (Platycodon grandiflorum is afraid of continuous cropping). In some places, there are only a few thousand mu left from the original 10,000 mu base to now. The contradiction that demand exceeds supply has caused the price of Platycodon grandiflorum to rise, dry products 7 yuan / kg to the current 16 yuan / kg, fresh exports from 3 yuan per kilogram to 5 yuan per kilogram at present.

It can be seen from the article that with the increasing demand for Platycodon grandiflorum and the continuous decline of the planting area of Platycodon grandiflorum, the market price of Platycodon grandiflorum is also on the rise. however, the market price of Platycodon grandiflorum is still slightly lower than that of some other Chinese medicinal materials. I believe that in the near future, the planting benefit of Platycodon grandiflorum will continue to rise.