How to reproduce Pinellia ternata

Pinellia ternata, also known as Diwen, is a traditional Chinese medicine with dryness and dampness, reducing expectoration, reducing vomiting and relieving vomiting. It is planted in many areas, so how does Pinellia ternata reproduce?

1. Tuber propagation

Pinellia ternata has been cultivated for 2-3 years, and the underground tubers can be controlled after falling seedlings in June, August and October every year. Select small tubers with a transverse diameter of 0.5-1 cm, strong growth and free of diseases and insect pests for planting. The seed stem was mixed with moderately dry and wet fine sand, stored in a cool and ventilated place, and planted in the winter or spring of the following year. It is better to plant in spring, and the yield is low in autumn and winter. Planting in spring should be sooner rather than later. In the south of the Yangtze River, where the climate is warm, horizontal ditches can be opened to sow on the fine raked border surface in mid-December. According to the row spacing of 12-15 cm, plant spacing of 5-10 cm, trench width of 10 cm, depth of about 5 cm, staggered arrangement of two rows in each ditch, buds placed upward into the ditch. After planting, one layer of mixed fertilizer soil was applied (made of rotten compost and stable manure plus human and animal fertilizer, fire soil ash, etc.). It uses about 2000 kilograms per mu. Then, cover the ditch soil, which is about 15-7 cm thick. Need to plant about 100 kg per mu, properly close planting Pinellia ternata, the seedling growth is uniform and the yield is high. If it is too dense, the growth of seedlings is weak, and weeding is difficult; if it is too sparse, there are fewer seedlings and more grass, and the yield is low. The covering of soil should also be moderate, too thick, and it is difficult to emerge seedlings. Although the bulbs are large in the future, they are often formed in the soil and are not easy to pick; if the seed stems are too thin, they are easy to shrink and cannot sprout. If you encounter dry weather after planting, you should water it in time and keep the soil moist all the time.

2. Bulblet propagation

There is a pearl bud on each stem and leaf of Pinellia ternata, which is abundant in quantity, reliable in germination and early in maturity, so it is the main breeding material. In summer and autumn, when the old leaves are about to wither, the bulbs are ripe and can be picked and propagated. Digging holes and sowing according to the row spacing of 10 cm to 8 cm, 2-3 seeds per hole, and can also be propagated in situ, that is, each one batch of seedlings, cover soil once, in order not to show the strength of bulbs. At the same time, an appropriate amount of mixed fertilizer was applied. It can not only promote the germination and growth of bulbs, but also increase fertilizer for the mother tuber, kill two birds with one stone, and help to increase production.

3. Seed propagation

More than 2 years old Pinellia ternata, from early summer to autumn and winter, can blossom and bear fruit one after another. When the flame bracts withered and sagged, the seeds were collected and stored in wet sand. From March to early April of the following year, the seedlings were sown in shallow ditches with a row spacing of 5-7 cm. After sowing, they were covered with fine soil 1 cm thick, covered with grass for heat preservation and moisturizing, and seedlings could emerge in about half a month. However, the emergence rate is low, and it is generally not used in production.