Planting technique and yield of Platycodon grandiflorum

Planting Platycodon grandiflorum should be planted on loose soil. Clean water sources are needed around the planting land, and the drainage and irrigation system is good. It can be planted in spring, autumn and winter, and the best time is mid-September and around the Beginning of Spring. After planting, you can do a good job in field management and disease control. The average annual output of planting Platycodon grandiflorum is more than 1000 kg, and the yield is higher in some places.

1. Planting techniques of Platycodon grandiflorum

1. Land selection and preparation

The root ability of Platycodon grandiflorum is not strong, so it needs to be planted on soil with strong permeability and loose soil, clean water is needed around the planting land, and the drainage and irrigation system is good, preferably on a half-shaded and half-sunny hillside. Timely soil preparation after land selection, because the root of Platycodon grandiflorum is longer and thicker, it is necessary to make ridges, turn the ground deep into ploughing, and then open ditches to pile the soil in the ditches on both sides. Field ridges with a width of 2 meters are made to provide a good growth environment for Platycodon grandiflorum.

2. Sowing seeds at the right time

Platycodon grandiflorum can be sown in the other three seasons except that it is not suitable to germinate in the high temperature in summer, but the best time is in mid-September and around the Beginning of Spring every year, when sowing helps to promote seed rooting and germination. enhance the growth ability of seedlings, improve yield and quality, it is best to use strip sowing, and timely cover fine soil and plastic film after sowing to improve soil water and fertilizer conservation. To prevent the loss of water and fertilizer and affect the germination rate of seeds, the plastic film should be opened in time after emergence to ensure the normal growth of seedlings.

3. Field management

When the seedlings grow to about 2 cm after breaking the soil, observe the growth and density of the seedlings, do a good job of thinning the seedlings in time, and then wait until the seedlings grow again, we can start to fix the seedlings, control the distance between the seedlings, prevent the growth from being too dense, pull out the weak seedlings of the dead seedlings, and then supplement the seedlings to ensure the yield. Weeds should be weeded regularly in the seedling stage of Platycodon grandiflorum to prevent excessive weeds leading to malnutrition of Platycodon grandiflorum. After weeding, topdressing in time, you can use mature farm manure, and then in the later stage according to the growth of Platycodon grandiflorum.

4. Disease control

Platycodon grandiflorum is most afraid of all kinds of diseases and insect pests. When the diseases and insect pests are serious, it can lead to no harvest of Platycodon grandiflorum granules. The common diseases of Platycodon grandiflorum include spot blight, aphids and so on. No matter what the diseases and insect pests are, the harm to Platycodon grandiflorum is very serious. Therefore, we must strengthen field management, regular disinfection, control the nutrition in fertilizer, enhance the disease resistance of Platycodon grandiflorum, improve immune ability, and reduce the incidence rate. After the disease, the diseased plants should be removed in time, the specific diseases and insect pests should be examined, and then the corresponding treatment methods should be used to control the disease so as to reduce the loss to the minimum.

II. Planting yield of Platycodon grandiflorum

The average annual yield of Platycodon grandiflorum is more than 1000 kg, and the high yield is 1500 kg. In Niuyingzi Town, Chifeng, Inner Mongolia, the yield of fresh Platycodon grandiflorum can reach 1500 kg-1800 kg per mu, and some plots are as high as 2000 kg.