1, site selection and soil preparation

Polygonatum sibiricum has a certain demand for light. When planting, you can choose a field with sufficient light and rich nutrition, plow the soil for 20 cm with a hoe to remove grass roots and gravel, then bury the decomposed farm manure or animal manure in the soil, and then plant Polygonatum after one week.

2. Sowing and planting

Polygonatum can be planted by sowing. First, the tender stems with healthy growth and no diseases and insect pests are dug out of the soil, cut into small pieces, and then placed in a cool and ventilated environment to dry the wounds, then the seed stems are buried in the soil with a row spacing of 30 cm and a plant spacing of 20 cm, and finally covered with a thin layer of soil.

3. Disease control

Common diseases of Polygonatum sibiricum include leaf spot and black spot. After the disease, the plants will grow spots, which will affect the normal growth. For leaf spot, zineb diluent can be used for spray treatment. After suffering from black spot disease, Bordeaux mixture should be sprayed once a week to restore the healthy growth of plants.

4. Rhizome propagation

Dig underground rhizomes in late autumn or early spring around the end of March, select the tender tip part, cut it into several sections, each section is 3-4, slightly dry the wound, plant the whole bed according to the row spacing of 50-50 cm, the plant spacing of 50-50 cm and the depth of 12 cm, and cover the soil for 5-7 cm. When the soil is planted in late autumn, some livestock manure or manure should be covered after freezing. After thawing in the second year, the manure should be crushed and flattened to keep the soil moist before emergence.

5. Seed propagation

Immediately after the seeds mature in August, sand storage treatment is carried out: 1 part of seeds and 3 parts of sand are evenly mixed and placed in a pit 30 cm deep in the shade to keep moist; At the end of March of the following year, when the seeds are screened out, they are evenly scattered into the shallow furrow on the border according to the row spacing of 12- 15cm, covered with soil about 1.5cm, slightly pressed, watered and covered with a layer of grass. Before emergence, cover grass should be removed. When the height of the seedlings is 6-9 cm, the seedlings can be properly thinned in the over-dense place, and transplanted after 1 year. In order to meet the growth habit of Polygonatum sibiricum, corn can be planted on the ridge of the field.