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Identification and Control Methods of Diseases in the Seedling Stage of Panax notoginseng
Because Panax notoginseng grows year-round in a shaded and humid environment, diseases such as black spot, round spot, phytophthora blight, rust rot and powdery mildew occur and cause serious damage, with annual losses from various diseases reaching 30%-40%, and in severe cases over 80%. The stage of emergence and leaf growth, when the plant is tender, the root system is underdeveloped and stress resistance is poor, is an important period for initial infection by many pathogens. If spring rain comes early and frequently, the disease spreads rapidly and the damage and losses are severe. Panax notoginseng generally takes 60-75 days from sowing to emergence; strengthening
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Methods for Authenticating Panax Notoginseng: How to Tell Real from Fake
Panax notoginseng, commonly known as Tianqi, is considered best when the roots are large, heavy, smooth on the surface, brown-black, hard in texture, and grayish-green or yellow-green on the cut surface. Among the people, its quality and price are often determined by how many Tianqi rhizome pieces make up each jin: the larger the heads, the better the quality and the higher the price. If 20 Tianqi heads make up 1 jin, this is the best, called the "King of Seven." If 60 to 80 Tianqi heads make up 1 jin, they are called 80-head. If each jin contains more than 300 Tianqi heads, they are called headless grade, the poorest quality. Panax notoginseng tastes slightly bitter when chewed, with no numbing or spicy sensation, and breaks easily. It is easily confused with
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Cultivation Methods and Technical Key Points for Notoginseng
Notoginseng originated in the Tertiary period and is a relict plant of the ancient tropics, with an extremely narrow distribution range, which is mainly related to Notoginseng's physiological and ecological adaptability to the environment. Notoginseng is a perennial herbaceous plant with persistent roots, and has one growth cycle each year. Usually, Notoginseng more than two years old has two growth peaks within one growth cycle: the vegetative growth peak from April to June and the reproductive peak from August to October. The germination temperature of Notoginseng seeds is 10-30 degrees, the optimal temperature is 20 degrees, and the seed dormancy period is 45d-6
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What are the propagation methods for Panax notoginseng? Explained in one article
Seed propagation is mainly done by raising seedlings and then transplanting them. 1. Seed treatment: generally select seeds set by robust, pest- and disease-free 3-year-old plants. When the fruit ripens in November to December, harvest it, wash off the flesh, and sow promptly, because after the seeds are stored for one week the germination rate drops greatly. Before sowing, disinfect the seeds with 0.2-0.3 degrees Baume lime-sulfur solution for 10 min, or with 200-300 times zineb for 15 min, then sow.
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Harvesting and Processing Methods and Key Technical Points for Panax notoginseng
Harvesting can begin after three or more years of cultivation. Harvesting is divided into two periods. Panax notoginseng harvested in July to August is called "spring Panax notoginseng," and the Panax notoginseng harvested after the flower stalks are removed is the best in quality and also high in yield; Panax notoginseng harvested from December after the Start of Winter to January of the following year is called "winter Panax notoginseng," and is poorer in quality and also low in yield. After digging it up, remove the aboveground stems and wash off the soil. After cutting off the rhizome (yangchangtou), branch roots, and removing the fibrous roots, it is called "touzi." The touzi is repeatedly sun-dried and rubbed so that it becomes firm, until completely dry, and this is "maohuo." Then place the maohuo in a hemp bag
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Cultivation Techniques and Management Methods for Lovage
I. Characteristics: Family: Apiaceae (Umbelliferae) characteristics. Also known as: Lovage. Most of these plants are native to the eastern Mediterranean, are perennial, and can grow up to 2 m tall. The leaves are dark green, large, and have a celery-like fragrance. The stems are hollow with deep grooves and serrated edges. In summer, it produces small pale yellow-green flowers. Sow in autumn (low germination rate). It prefers full sun or partial shade, and fertile, moist but well-drained soil. II. Cultivation Techniques: Full sunlight and good ventilation, with well-drained sandy loam or deep loam being best. Direct seed sowing, 2-3 per hole.
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How to prevent early bolting in Angelica sinensis? Detailed control methods
Angelica sinensis is native to high-cold mountain areas and is a low-temperature long-day plant. During its individual development, the transition from vegetative growth to reproductive growth requires passing through two developmental stages: the vernalization stage (requiring a low temperature of 0-5°C) and the photoperiod stage (requiring a long-day photoperiod of more than 12 hours). Therefore, artificial cultivation requires growing seedlings in the first year (raising seedlings), harvesting the roots for medicinal use in the second year, and collecting seeds from bolting, flowering and fruiting in the third year. However, in production practice, Angelica sinensis often bolts and flowers abundantly during June-July of the second year of cultivation, with the bolting rate in normal years ranging from 10-30%
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Key Points of Angelica sinensis Cultivation Techniques and Management Methods
[Aliases]Qingu, Yungui, Xidanggui, Mindanggui, etc. [Family and Genus]Belongs to the genus Angelica in the family Apiaceae. [Growth Habits]It prefers cool and humid climates and grows well in high mountains at an altitude of 1500-3000 m under natural conditions with relatively high air humidity. The best soil is slightly acidic to neutral sandy loam or humus loam with deep soil layers, loose and fertile texture, and good drainage. Continuous cropping is avoided. [Morphology]Perennial herb. Plant height 50-100 cm. The main root is thick, fleshy, aromatic, roughly cylindrical, with a yellow or earth-yellow epidermis
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Harm and Control Methods of Angelica Rust
The pathogen is Puccinia angelicae (P. angelicae). Urediniospores are oval to oblong-elliptical, yellowish-brown, (25-42) micrometers x (22-30) micrometers, with small spines on the surface and 3 germ pores. Teliospores are elliptical to club-shaped, chestnut-brown, (32-49) x (17-26) micrometers, with rounded ends and slightly constricted at the septum; the stalk is colorless and deciduous. Single-spored teliospores sometimes occur. 1. Damage symptoms: It damages leaves, and also damages petioles and fruit stalks. Uredinial pustules are scattered or clustered on the underside of leaves, exposed, brown. Telio
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How to prune Schisandra chinensis? Detailed pruning methods and techniques
If you want stable and high yields from cultivated Schisandra chinensis, pruning is the key. The author has been engaged in artificial cultivation of Schisandra chinensis since 1997, and has summarized pruning methods in practice. They are written out here for fellow farmers' reference. 1. Row direction The best row direction for Schisandra chinensis cultivation is a north-south orientation, which gives good light exposure and good ventilation, laying the foundation for stable and high yields. 2. Trunk determination In the summer of the year of transplanting, Schisandra chinensis seedlings grow rather vigorously. For each plant, select and keep 3-4 strong lateral vine branches and train them onto the poles. One seedling gets two poles, and each pole carries two
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