Planting methods of Polygonatum odoratum family culture and matters needing attention

Polygonatum odoratum is a kind of shade-tolerant plant, which is distributed in many parts of our country at present. The stem of Polygonatum odoratum is relatively long, the leaves are green, will bloom, generally white flowers, like a small bell, very beautiful. Because of its high value, many people want to grow it.

Planting method of Polygonatum odoratum

1. Land selection: select hilly land with low soil, air and water pollution, 100m above sea level and 1200 m above sea level, slope less than 25 degrees, deep soil layer, fertile and loose soil, good drainage, neutral or slightly acidic soil as planting land for Polygonatum odoratum. Polygonatum odoratum should not be continuous cropping, otherwise there will be an increase in diseases and insect pests, a decline in yield and other phenomena, so continuous cropping must be avoided.

2. Seed and seedling selection: the pig shit tail, a high-quality variety of Polygonatum odoratum with no diseases and insect pests and no trauma, is selected.

3. Soil preparation and fertilization: for the selected land, 150 kg / mu of quicklime and 200 g / mu of pest control agents such as Quechongguang were applied after the previous crop harvest, and immediately ploughed (depth about 30 cm), weeding, exposure to the soil (this is very important, it is one of the keys to ensure the high yield of Polygonatum odoratum). Before planting, the soil was broken, ditched separately (box width 1, 5 Mel 2 meters), leveled and fined, applied sufficient basic fertilizer, and applied 2500 kg of pig and cow manure per mu.

4. Seeding: select the seedlings with no damage to the tooth head and strong seedling body, and choose sunny days or sunny days after rain and suitable dry humidity from July 25 to August 25 every year. Before planting, methyl topiramate and other drugs should be used for sterilization and disinfection (according to the normal concentration of water, soaking for 2 minutes for 5 minutes), reasonable planting (oblique arrangement method and arrangement method, oblique arrangement method is more. In the oblique arrangement system, the end of the stem with the apical bud is facing up, the tail is downward, and it is arranged into the sowing ditch at a certain angle from the ground, with a density of 30cm X 8.3cm and a depth of 6mil. 7cm.

5. Mulching: Polygonatum odoratum must be covered with straw, corn stalk or thatch immediately after planting, with a thickness of 6mur7cm and a thin layer of soil on this layer of grass.

Family Culture method of Polygonatum odoratum

1. Environmental requirements. Polygonatum odoratum is cold-resistant, shady and moisture-resistant, and does not like windy and strong direct sunlight. As Polygonatum odoratum likes a cool climate, it is best to plant in a place where the wind is facing the sun. At the same time, attention should be paid to the drainage of flowerpots and the choice of fertile and loose sandy loam. Planting method of Polygonatum odoratum

2. Autumn is the best time to plant Polygonatum odoratum, which will sprout in March-April of the second year. The rhizome of Polygonatum odoratum survived for a long time, up to 3-4 years, and then began to rot. The ramet planting of Polygonatum odoratum mainly depends on the rhizome, which is cut into small segments about 3 to 7 centimeters long and planted in flower soil 6 centimeters deep. During the period from budding to becoming a seedling, the growth is slow, and the temperature rises in early summer, which will make the stems and leaves grow rapidly, appear buds and blossom. Usually in the hot season in July, the root system of Polygonatum odoratum grows faster and the aboveground part grows slowly.

3. It can be planted in spring and autumn. Each segment of the rhizome used for planting must have more than 2 nodes. After planting, it needs to be watered thoroughly and placed in a cool place. Polygonatum odoratum needs to be fertilized for 2 or 3 times during its growth. Organic fertilizer is recommended.

Points for attention of Polygonatum odoratum

1. Overwintering against cold. Although Polygonatum odoratum is hardy, in winter, because the weather is too cold, we should pay attention to prevent cold, lest frostbite plants, can not grow.

2. Fertilizing and topdressing. Polygonatum odoratum likes fertile soil, so it is necessary to fertilize Polygonatum odoratum on time and amount to supplement sufficient nutrients, which is conducive to the growth of plants. Not only fertilize, but also pay attention to topdressing, especially during the seedling period, but note that if you apply enough base fertilizer, you will no longer need topdressing so as not to burn the roots.

Disease and pest control of Polygonatum odoratum

1. Polygonatum odoratum mainly has some diseases, such as leaf spot, root rot, gray spot and so on.

2, insect pests are: grub pests, the control method is to use 90% crystal trichlorfon 1000-1500 times to irrigate the soil around the root until the pest is killed.

There are still some differences between the planting technology of Polygonatum odoratum and the methods of family culture, but we all need to choose a soil suitable for growth, and we also need to strengthen management in the later stage, especially the prevention and control of diseases and insect pests. Only in this way can we ensure the growth of Polygonatum odoratum.