Summary of potted platycodon planting techniques

Platycodon grandiflorum has the effect of moistening the lungs, reducing swelling, etc., so it is widely planted. How do you know how to plant the bellflower potted plants? Next, Xiaobian will summarize the planting method of potted bellflowers.

Potted bellflower planting method:

1 Seed screening

Select 2 a raw platycodon grandiflorum to produce the same size, full, pure color seeds. The screened seeds are placed in the sun for 1 to 2 days to facilitate the release of dormancy and kill the parasitic fungus on the surface of the seed.

2 seed treatment

In order to further increase the seed germination rate in the potted plants, the selected seeds were soaked with 100 mg/L GA3 or 20% PEG 6 000, soaked for 10 h, soaked after soaking, wrapped in gauze in the incubator 25 Germinate for 10 h in dark conditions and then prepare for sowing.

3 potting and fertilizing

Basin size: The diameter is 33 cm 28 cm, which makes the container meet the root development requirements of Platycodon grandiflorum. The sieved sandy loam with high organic matter content and no pollution is thoroughly mixed and quantitatively packed into each pot. Because the platycodon grandiflorum seeds are small and not drought-tolerant at the beginning of planting, the soil in the pots should be sieved before planting to improve soil water retention and fertility, and is conducive to root development. First lay a layer of pebbles in the bottom of the basin and wrap it in a newspaper, insert a rigid plastic tube into the newspaper along the edge of the basin. In the application of the base fertilizer, the phosphate fertilizer should be applied at one time, and the nitrogen and potassium fertilizers should be used in proportion according to the proportion. In the later stage of growth, the fertilizer can be applied according to the growth condition. The initial base fertilizer should be thoroughly mixed into the pot in the soil in the pot.

4 reasonable density planting

Due to the low germination rate of the platycodon grandiflorum, the amount of seeding per unit area should be increased. Therefore, the seeds after germination treatment are planted according to the 343 formation, and 10 points are evenly distributed throughout the basin, and 4 to 5 seeds are planted at each point, and the seeds are evenly placed at a point, and the top is covered with a thickness of 0.5 to 1 cm. The soil is covered with 0. 5 cm thick vermiculite. The use of vermiculite has good pores, strong water retention capacity and aeration performance to prevent soil compaction during watering, which is beneficial to seed germination.

5 Lighting Management

Platycodon grandiflorum is a plant that requires sufficient light throughout the growth cycle. The position of the pot should be suitable for sunlight, but when the temperature is too high at noon, proper shading is required.

6 pot management

In the early stage of planting in the north, because the temperature is too low, the pot is covered with a film, which can be humidified and kept warm to make the water permeate evenly; the weeds are eradicated, because in the early stage of growth, the roots of the stalks are light and tender, and the hand is pulled during weeding. When watering, according to the moisture content of the basin, water is moderately watered every day. At the beginning of the emergence, it should be poured through the plastic pipe. At the same time, it must be sprayed with a small watering can on the surface of the meteorite. In the case of alkalization, a small amount of ferrous sulfate (500 1) should be added to the water to prevent long-term use of alkaline water, causing alkalization of the soil in the pot, resulting in reduced emergence rate, yellow leaf growth at the late seedling stage, and prevention of pests and diseases. When the platycodon is just emerging, the number of observations should be increased. If there are pests and diseases, the low-concentration pesticide should be used to spray the surface of the leaves and the surface of the soil in the basin to prevent and control.