How to plant Polygonatum sibiricum

Land selection and preparation: select moist and shady plots, and the soil should be loam or sandy loam with loose texture and good water retention. Propagation mode: you can choose rhizome propagation (around late autumn or early spring around late March) or seed propagation (after the seeds mature in August, select mature and full seeds for sand storage treatment immediately). Field management: early ploughing and weeding, timely watering in case of drought, combined with ploughing and weeding for topdressing. Pest control: mainly prevent leaf spot, grubs and so on.

Although there has been a certain period of time for the cultivation of medicinal materials, for some medicinal materials, there is still a great difference between artificially planted and wild ones, so there is still a supply of wild resources in the market, but with the continuous mining of resources, it is bound to face the reality of resource depletion.

How to plant Polygonatum polygonatum

1. Land selection and land preparation

Choose moist and fully shaded plots, and the soil should be loam or sandy loam with loose texture and good water retention. Before sowing, first turn deeply once, combined with land preparation, apply farm manure 2000 kg per mu, turn into the soil as base fertilizer, and then rake fine leveling, make the border, the width of the border is 1.2m.

2. Mode of reproduction

① rhizome propagation: select 1-2-year-old plant rhizomes without diseases and insect pests in late autumn or early spring before and after late March, select the tender parts of the apex, cut into several segments, each section has 3mur4 sections, the wound is slightly dried, according to the row spacing of 22ml 24cm, the plant spacing is 10cm 16cm, the depth is 5cm, the soil is slightly suppressed and watered, and then watered every 3 times every 5 days to keep the soil moist. When planting at the end of autumn, cover some circle fertilizer and grass after freezing to keep warm.

② seed propagation: after the seeds matured in August, the mature and full seeds were selected for sand storage treatment immediately: 1 seed and 3 sand soil were mixed evenly. Store in a pit 30cm deep in the shade and keep it moist. To sift out the seeds in late March of the following year, sow the seeds evenly into the shallow ditch on the border surface according to the row spacing of 12: 15 cm, cover the soil with about 1.5 cm, water it slightly, and cover it with a layer of grass to moisturize. Remove the cover grass before emergence. When the seedling height is 6ml / 9cm, the seedlings can be planted in a dense place and transplant one year later. In order to meet the shading conditions for the growth of Polygonatum polygonatum, corn can be planted on the ridge.

3. Field management

In the early stage of growth, the weeds should be ploughed and weeded frequently, once a year in April, June, September and November, shallow hoe and proper soil cultivation should be carried out, and weeds should be pulled in the later stage. In case of drought or the need for timely watering in sunny and dry places. After the first three times of intertillage, 1500 kg of soil fertilizer was applied per mu, 50 kg of superphosphate and 50 kg of cake fertilizer were mixed well, and then ditched and applied between rows, and then covered with soil and covered with fertilizer. Huang Jing avoids water and shade, and should pay attention to drainage and intercropping corn.

Growth environment of Rhizoma Polygonatum

1. Seed treatment: Rhizoma Polygonatum selected mature and full seeds for sand storage treatment immediately after the seeds matured in August. 1 part of the seed and 3 parts of sand were evenly mixed and stored in a pit 30 cm deep in the shade to keep moist.

2. Sowing at the right time: Polygonatum usually sift out the seeds in late March, spread them evenly into the shallow ditch on the border surface according to the row spacing of 12-15 cm, cover soil about 1.5 cm, water slightly, and cover with a layer of grass to moisturize.

3. Management at seedling stage: the cover grass was removed before emergence of Polygonatum polygonatum. When the seedling height was 6-9 cm, the seedlings could be planted properly and transplant one year later. In order to meet the shade conditions needed for the growth of Polygonatum, corn could be planted on the ridge.

Control of diseases and insect pests of Polygonatum polygonatum

1. Disease: the main disease of Polygonatum polygonatum is leaf spot, which often occurs in summer and autumn. the diseased leaves produce oval or irregular leaves with brown spots on the outer edge and light white spots in the middle, which make the leaves scorch and die. It can be sprayed with 100 Bordeaux solution or 65% Dysen zinc wettable powder 500 times.

2. Insect pests: the main pest of Polygonatum polygonatum is the grub, which mainly harms the rhizome. Adults can be trapped by light or sprayed with 800 times of 90% crystal trichlorfon.

Planting Prospect and Future Price trend of Polygonatum polygonatum

1. The circulation supply of Polygonatum polygonatum on the market is mainly supported by wild resources. although there is family development, it is affected by low yield per mu and high cost, so it is difficult to occupy the market advantage in the short term.

2. The new production time of Huang Jing is less, from about November of the first year to the end of April of the next year. Although the output decreases year by year, it will not be cut off in the short term.

3. Rhizoma Polygonatum is a traditional Chinese medicine for both medicine and food, the demand is increasing every year, the consumption of fresh goods is increasing, and the quantity of dry goods is declining.

Although the current cultivation of Polygonatum polygonatum is not depressed, on the one hand, the planting cost is high, but the market price is not increased, but with the continuous exploitation of wild resources, it will eventually usher in the peak of artificial planting. Therefore, in this case, to improve the planting technology of Polygonatum polygonatum, to make the quality of planting Polygonatum reach the quality of wild Polygonatum is the top priority during this period.