Prince ginseng likes to be warm and humid and afraid of high temperature. Pay more attention to pest management.

1. Overview

Pseudostellaria pseudostellaria is a perennial herb of carnation family, also known as child birth and child ginseng. With root tuber medicine, there are qi production and spleen and stomach tonic effect. Pseudostellaria heterophylla likes mild and humid climate, can be cold-resistant, but afraid of high temperature, fear of strong light, grow well under humid conditions. It is required to plant in sandy loam or light loam with loose soil, fertile soil, rich humus and good drainage, while poor soil, over-clay or poor drainage and low-lying land should not be planted. Liaoning, Hebei, Jiangsu, Shandong, Anhui and other provinces.

2. Cultivation techniques

1) Reproduction. Pseudostellaria heterophylla reproduces by seed and root tuber. The main reason for this is root propagation.

① Seed propagation. The fruits of Pseudostellaria heterophylla are scattered when they are ripe, and the harvest time should be grasped well. Threshing and sand storage after harvest. The seeds can be sown in the autumn of that year or spring of the following year. When sowing, transverse furrows are opened on the seedbed according to the row spacing of 15-20 cm and the depth of 1 cm, the germinated seeds are sown into the furrows, about 1 cm of soil is covered, weeds are covered, and watering is carried out to keep moisture. It takes about 15 days to emerge.

2. Root tuber propagation. For shade, summer and autumn crops are interplanted between rows. When high temperature comes, pseudostellaria willows and seedlings fall, summer and autumn crops grow. Planting after autumn harvest. It can be planted in late October before freezing. Root tuber is dug up in early July, select terminal bud robust, complete hypertrophy, neat, no diseases and insect pests root tuber for planting. After planting and drying, mix it with 2-3 times of river sand and store it. When planting, take out and plant, open transverse grooves on the ridge surface according to the row spacing of 12- 15cm and the depth of 8cm, tilt the bud heads upward according to the plant spacing of 6cm, put them into the grooves in the same direction, cover the soil, irrigate thoroughly once, cover the ridge surface with grass for heat preservation and moisture preservation. Each 667㎡ needs to be planted about 45 kg.

(2) Field management. Weeding and soil cultivation should be done frequently in seedling stage of Pseudostellaria heterophylla. After the seedling is complete, topdressing is applied once, and 1500 kg of human and animal feces and urine are applied every 667㎡. After the plants are sealed, weeding can be stopped. Pay attention to drainage in rainy season, pseudostellaria root is afraid of waterlogging. But when the soil is dry, it should be watered at the right time.

(3) Disease control. Pseudostellaria root is easy to be damaged by root rot, and the whole root rot when serious.

Control methods:

① Pay attention to drainage after rain.

2. Before planting, root tuber should be soaked in 200 times solution of 25% carbendazim for 10 minutes, dried and planted.

(3) At the early stage of disease, the diseased plants were irrigated with 800-1000 times solution of 50% carbendazim or 1000 times solution of 50% thiophanate-methyl.

In addition, Pseudostellaria heterophylla disease and leaf spot disease, can be used Bordeaux mixture control.

3. Harvesting and processing

The harvest of Pseudostellaria heterophylla was carried out in early July, except for the remaining fields. When digging, do not hurt the bud head and keep the shape intact. After harvesting, remove stems and leaves, wash ginseng body, remove fibrous roots, dry. Or after drying to soften, wash, put into boiling water pot, blanch for 2-3 minutes, take out and dry. Pseudostellaria heterophylla cultivation two years of mining generally every 667㎡ can produce 200 kilograms of mixed dry goods.