Propagation methods of Polygonatum odoratum

Polygonatum odoratum (Polygonatum odoratum) is a perennial herb of Liliaceae. It is native to southwest China, but it has wide wild distribution, cold tolerance, shade tolerance, avoid bright light and wind, like humic environment, and is suitable for growing in loose soil rich in humus. Let's take a look at the breeding methods of Polygonatum odoratum.

Seed Propagation of Polygonatum odoratum

1. Seed collection: the wild fruits were harvested in September, soaked in water, peeled and pulp rubbed, mixed with wet sand for sand storage and sown in the spring of the second year.

2, sowing method: on the prepared bed, trench the seeds evenly in the ditch according to the row spacing of 10 centimeters, cover the soil by 2 centimeters, and suppress them slightly.

Rhizome propagation of Polygonatum odoratum

1. Seed stem selection: in the autumn harvest, the hypertrophic, yellow and white root buds grown in the same year are selected for seed use, along with digging, selecting and planting. If the weather changes, the root buds must be spread out in a cool and leeward place indoors. Generally, the seed stem is 200-300 kg per mu.

2. Planting method: generally from early October to late October, choose cloudy or sunny days to plant, when planting, open a ditch 15 cm deep on the border according to the row spacing of 30 cm, then arrange the seed stem in the ditch according to the plant spacing of about 15 cm, then cover it with rotten manure and cover it with a layer of fine soil to level with the border surface.

Field Management of Polygonatum odoratum

1. Intermediate ploughing and weeding: no seedlings emerge in the same year after planting, and weeds should be weeded in time after emergence in the next spring. For the first time, you can pull out the buds by hand or shallow hoe so as not to hurt the buds. After that, there should be no weeds on the soil surface. In the second year, the rhizome has been covered with the surface layer, so it is only appropriate to pull out the weeds by hand.

2. Timely topdressing: in the winter of the same year after planting, open a shallow ditch between the rows, apply 800-1000 kg of animal fertilizer per mu, and then cover the soil for the winter. when the seedling height is 7-10 cm in the second year, fertilize once more, and after falling seedlings in winter, loosen the topsoil between the rows and spread a layer of rotten dry fertilizer (cow dung, soil miscellaneous compost, etc.). It is better to cover grass or litter, such as grass or litter in the third year. Apply 15002000 kg of human dung water per mu, and cultivate the soil after application.

3. Harvest and processing: Polygonatum odoratum is generally dug around the middle of August. When the weather is fine and the soil is slightly dry after rain, cut off the stems and leaves uniformly with a knife, then dig them forward with a tooth rake, and be careful not to break or damage the roots. Then the fresh rhizome is graded according to size and exposed to the sun for 3 to 4 days. When the appearance becomes soft and mucus seeps out, gently bump off the root hair and sand with the bamboo basket, and continue to air. When Polygonatum odoratum changes from white to yellow, rub it with your hands or step on it repeatedly with your feet for several times, until the oil is soft and smooth, without hard heart, and the color is yellow.