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Key technical points and precautions for transplanting licorice
Generally, it is done in late autumn or early spring. In late autumn, before the land freezes; in early spring, around Qingming Festival, and no later than mid-April. The transplanting field should be prepared on the basis of autumn plowing from the previous year by making beds (bed width depends on a row spacing of 50 cm and how many rows are planted in the bed), then applying fertilizer. Dig up the seedlings grown the previous year after the ground at the field corners thaws, remove the aboveground parts and the lower growing points, and set them aside for use. In the prepared field, open furrows at a row spacing of 50 cm, 12 cm deep, then place the seedlings flat at the bottom of the furrow, with the heads placed obliquely toward the inner slope, at a slope of 10 degrees. When placing the seedlings, 2 rows
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How to prevent and control licorice rust? Detailed explanation of prevention and control methods
The pathogen is a basidiomycete fungus, mainly affecting the leaves. On the underside of infected leaves, yellow-brown blister-like lesions appear on one side; after the epidermis ruptures, brown powder is released, which are the uredinia and urediniospores of the pathogen. From August to September, dark brown teleutosori form. Prevention and control methods: 1. Collect diseased plant leaves and burn them. 2. At the early stage of disease onset, spray 0.3-0.4 degrees Baume lime sulfur mixture or 97% dithianon sodium 400-fold solution.
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Morphological Characteristics of Licorice and Introduction to Suitable Growing Conditions
[Morphological Characteristics]Licorice is a perennial herb, 30-100 cm tall. The whole plant is covered with short white pubescence and glandular hairs. The above-ground stem is erect, woody at the lower part, with angular, green branchlets. The leaves are alternate, odd-pinnately compound. The leaflets are in 3-8 pairs, ovate or ovate-elliptic, with entire margins, and the terminal leaflet is larger. The inflorescence is a raceme, axillary, with very short pedicels, an ovate bracteole below the base, a bell-shaped green calyx, and a papilionaceous corolla in purplish-red or blue-purple. The fruit is a legume, narrowly rectangular, curved into
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Key Technical Points for Field Management in Licorice Cultivation
Thinning and Final Thinning: In the year of direct sowing, thin the seedlings when they are about 6 cm tall, with a plant spacing of 10-15 cm; in the second year, maintain a plant spacing of 30 cm for final thinning. Cultivation and Weeding: After licorice is planted, weeds must be removed frequently in the first year, and the soil should be loosened in a timely manner. Soil loosening should go from shallow to deep, and herbicides can also be used for weed control. By the second year, once the plants have grown larger, weeds can hardly grow, so cultivation and weeding may no longer be necessary. Topdressing: In addition to applying base fertilizer at sowing or planting, during each year's growing period, phosphorus and potassium fertilizer can be applied as topdressing in early spring, with plant ash or compost applied per mu.
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Detailed Explanation of the Biological Characteristics and Growth Habits of Licorice
1. Biological characteristics (1) Flower size and seed characteristics. Due to different habitats, licorice naturally forms three ecotypes, namely sandy-land licorice, ridge-land licorice and floodplain licorice. The flowers of different licorice ecotypes are similar in size, but the seeds differ markedly in size, in the order floodplain licorice > ridge-land licorice > sandy-land licorice; the hard seed rate is ridge-land licorice > sandy-land licorice > floodplain licorice. Licorice grown from seed generally flowers and sets seed after 3 years. (2) Distribution characteristics of roots and rhizomes. Sandy-land licorice
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Key Technical Points for Seed Treatment in Artificial Cultivation of Licorice
Licorice seeds have a hard seed coat and poor water absorption, with a germination rate of only 4-6%. Grinding or sulfuric acid treatment is needed to break the hard-seeded state and improve the germination rate and seedling emergence rate. I. Sulfuric acid treatment method. For each kilogram of clean seeds, mix evenly with 20-30 mL of 80% sulfuric acid. Once uniform sulfuric acid etching marks are visible on the seed coat, rinse with clean water and dry in the sun for later use. The treatment time depends on temperature and the amount of acid added. With the same amount of acid, higher temperatures require shorter treatment time, while lower temperatures require
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Control Methods and Technical Key Points for Licorice Brown Spot Disease
Brown spot disease is an infection caused by a type of imperfect fungus (Deuteromycete), mainly damaging the leaves. Its symptoms are: circular or irregular lesions appear on the leaves, the center of the lesion is grayish-brown, the edge is brown, and black mold-like growth occurs on both sides of the lesion. Control methods: spray 1:1:100-1:1:160 Bordeaux mixture or spray 70% thiophanate-methyl wettable powder at 1500x-2000x dilution.
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Detailed Explanation of Key Techniques for High-Yield Cultivation of Licorice
Licorice, also known as sweet grass root, is a medicinal plant of the Fabaceae family. Its roots and rhizomes are used as medicine, and it has the effects of tonifying the spleen and boosting qi, clearing heat and detoxifying, moistening the lungs and stopping cough, and harmonizing all medicines. Licorice prefers a dry climate and tolerates severe cold. It is suitable for planting in sandy soil with deep soil layers, good drainage, a relatively low groundwater table, and rich calcium content. The soil should preferably be neutral or slightly alkaline. Waterlogged lowlands, land with a high groundwater table, and acidic soil are not suitable for planting. Licorice is generally propagated by rhizomes. After harvesting licorice in autumn or spring, the thick roots are used as medicine, and fine
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Detailed Explanation of Licorice Propagation Methods and Cultivation Management Techniques
Propagation methods: use seeds, rhizomes, and division propagation. 1. Site selection and land preparation: sandy soil and loose red loam soil are suitable; apply 2500 kg of farmyard manure per 667 sq m, deep plow 40-50 cm in autumn, rake fine and level, and make high ridges with a ridge width of 40-50 cm and a ditch width of 30-35 cm. 2. Seed propagation: because licorice seed coats are hard and thick, making emergence difficult, before sowing mix crushed glass with an equal amount of seeds and grind for half an hour, giving a germination rate of about 85%; or use 3 times the seed volume of
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Key Points on Harvesting and Processing Techniques for Licorice (Part Three)
For licorice propagated from seed, harvest in the 4th year; for licorice propagated from rhizomes, harvest in the 3rd year. Harvesting can be done either before Grain in Ear (Mangzhong) or after White Dew (Bailu), but harvesting after White Dew is preferable. After digging them up, cut off the branches and twigs while fresh, sun-dry until half dry, tie into small bundles separately according to thickness, and sun-dry until completely dry. Quality specifications for dry goods: cylindrical in shape, thick at the top and thin at the bottom with no reed head, surface purplish-red or grayish-brown, rough skin, loose and light in texture, cross-section yellow-white, starchy, sweet in taste, free from impurities, insect damage, and mildew. Grade One: length over 60 cm, diameter over 1
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