Planting technique and cultivation Management of Polygonatum polygonatum

Rhizoma Polygonatum is a kind of Chinese herbal medicine, which has the effect of moistening the lung and tonifying qi, invigorating the spleen and nourishing yin. There are a lot of people growing Polygonatum. What is the planting technology and cultivation management of Polygonatum polygonatum?

Planting technique and cultivation Management of Polygonatum polygonatum

1. Land selection and preparation

The soil should be loam or sandy loam with loose texture and good water retention when the land is moist and shaded. Ploughing the soil before sowing, raking fine and leveling, and making beds.

2. Planting method

⑴ rhizome propagation: generally use rhizome propagation, select the current year or two-year-old buds fat rhizome as the female parent, cut into several segments with a knife, planted in the whole border. Cover soil 3-5 cm after planting, press slightly and water. Those planted at the end of autumn should be covered with livestock manure or manure after freezing to keep warm and survive the winter.

⑵ seed propagation: spread evenly in the shallow ditch of the border surface according to the row spacing of 12-15cm, cover soil about 1.5cm, water after slight pressure, and cover with a layer of grass. Remove the cover before emergence. When the height of the seedling is 6-9 cm, the seedlings can be planted in a dense place and transplant after 1 year. In order to meet the growth habit of Rhizoma Polygonatum, corn can be planted on the ridge.

3. Cultivation and management

Rhizoma Polygonatum should often be ploughed and weeded in the early stage of growth, soil cultivation should be carried out if necessary, and weeds should be pulled in the later stage. In case of drought or planting in more sunny and dry places, it needs to be watered in time. After intertillage, human and animal manure water and a small amount of urea and other chemical fertilizers should be applied, and after weeding, soil miscellaneous fertilizer, phosphate fertilizer and oilseed cake should be applied.

4. prevention and control of diseases and insect pests

⑴ disease: the main diseases are black spot and leaf spot. Bordeaux liquid and Dyson zinc wettable powder can be used for prevention and control.

⑵ insect pests: the main pests are grub larvae. They bite off the seedlings or eat the roots of the seedlings with 75% zinc parathion EC or other pesticides.

5. Harvest

The rhizome harvested in late autumn and early winter is fat and full, and its quality is the best. After digging, remove the stems and leaves, wash the sediment, remove the fibrous roots, the longer Polygonatum can be divided into 2 or 3 sections. Steam in a steamer or wooden retort until it is oily and take out to dry or dry.

In the process of planting Polygonatum polygonatum, pay attention to the irrigation of water, do not accumulate water. Interested friends can further consult the people concerned for a detailed understanding.