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Detailed Guide to Harvesting and Processing Licorice Root (Part Two)
For seed propagation, harvest after 3 to 4 years; for rhizome and division propagation, harvest after 2 to 3 years. Digging can be done from late autumn to early winter and before spring sprouting. Those dug in autumn are the best, with a high glycyrrhizic acid content and a firm texture. After the licorice is dug out, clean off the soil, remove the stem base, branches and fibrous roots, cut into sections of appropriate length, sun-dry until half dry, tie into small bundles, then sun-dry until completely dry.
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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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Cultivation Timing and Management Key Points for Licorice
I. Seed Germination Habits (I) Water Absorption and Germination of Licorice Seeds Licorice seeds have a low emergence rate, generally around 10%, so they must be treated before sowing. Untreated seeds absorb water very slowly, and most seeds do not imbibe; seeds treated with concentrated sulfuric acid absorb water very rapidly, reaching over 100% within 4 hours. Generally, once water absorption exceeds 100%, the seeds have a very uniform germination capacity. If water absorption differs, the germination rate differs accordingly. At 20°C, after absorbing water for more than 1.5 hours, the germination rate reaches over 80%, at which point the moisture content is about 95
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Detailed Guide to Licorice Cultivation: Planting Methods and Management Essentials
Licorice, also known as sweet grass or sweet root, has the effects of harmonizing medicinal properties, reducing or alleviating drug toxicity, and moistening the lungs. It also has the characteristics of cold resistance, heat tolerance, drought tolerance, sensitivity to waterlogging, and light preference, making it an excellent plant for windbreaks and sand fixation. Its cultivation techniques are as follows: For site selection and land preparation, sandy soil with deep soil layers, a deep groundwater table, and good drainage should be chosen. The soil salt content should preferably not exceed 0.2%. Areas with excessive rain or where the soil is relatively clayey and drainage is poor are not suitable for planting, because the roots tend to rot or the main root is short, with many lateral and fibrous roots, resulting in low economic value. The seedling nursery should preferably be chosen on relatively flat
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What are the key techniques for high-benefit cultivation and management of licorice?
(1) Site selection and land preparation. Licorice has strong adaptability, and most soils can be used for planting except saline-alkali land. In autumn, apply barnyard manure or compost as base fertilizer, plow more than 20 cm deep, rake level and make beds 1 m wide and 17 cm high, and open small furrows on the bed surface for sowing at planting time. (2) Propagation methods. Use seed propagation and rhizome propagation. 1. Seed propagation. This method can be used to expand the area. (1) Seed treatment. Under natural conditions, the hard seed rate of licorice seeds is as high as more than 80%-90%. Pre-sowing seed treatment is the key to a high yield.
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What are the highly effective pesticides for controlling rice skipper?
1. Optimal control period: This should be strictly timed to the peak egg-hatching stage and young larval stage of the rice skipper in the field, that is, July 29 to August 6 is the best period for pesticide application. 2. Targets for control: Rice fields with tender green growth, late transplanting and late development, late development after sitting, and seed-production maternal rice fields are all key target fields for control. 3. Protect natural enemy resources, prohibit the application of highly toxic pesticides, increase the parasitism rate of eggs, larvae, and pupae, and achieve pest control through beneficial organisms. 4. Chemical control: For rice skipper, use Qiansheng 8000 at 50 grams per mu, 90%
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Morphological Characteristics and Control Techniques of the Rice Root Leaf Beetle
The rice root leaf beetle, also known as the rice root golden flower beetle, belongs to the order Coleoptera, family Chrysomelidae. The adult is about 6 mm long; the dorsal surface of the body and the antennae are greenish brown with a metallic sheen, and the ventral surface bears dense, thick silvery hairs. The lower half of the femur of each leg is swollen, and the femur of the hind leg has a tooth-like spine near its apex. The elytra bear several parallel longitudinal grooves made up of punctures. Eggs are laid in masses and covered with a white, transparent gelatinous substance. The eggs are long oval, slightly flattened, about 0.8 mm long, initially milky white and later turning pale yellow. The larva is about 9 mm long, spindle-shaped, white and slightly curved, with 3 pairs of thoracic legs
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A Complete Analysis of the Key Points of High-Yield Cultivation Techniques for Two-Line Rice
Two-line rice has characteristics such as early and rapid growth in the early stage, smooth color transition in the middle stage, a long late-maturing period, tolerance to fertilizer and disease resistance, large panicles with many grains, relatively good grain quality, stable and high yield, and a more obvious yield-increasing advantage over three-line rice. Therefore, in recent years it has been promoted and applied over relatively large areas in various places. In practice, we earnestly implemented the "six improvements" measures for high-yield cultivation, gave play to the high-yield advantages of two-line rice, and achieved gratifying results. 1. Improve seedling-raising techniques and cultivate strong seedlings. According to the characteristic that two-line rice has little flexibility in seedling age, carry out classified seedling raising. For
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Detailed Explanation of the Growth, Development and Functions of Rice Roots
After the seeds are pre-germinated, they sprout and grow roots. At first, only one root grows, called the seminal root (primary root), which develops from the radicle of the seed. The fibrous roots that later grow from the root primordia at the stem nodes are called adventitious roots. The coleoptile node and the incomplete leaf node produce about 5 roots, the first, second and third leaf nodes produce about 10 roots each, and the nodes above the fourth leaf position produce about 10 to 20 roots each. This is because the leaves increase in size in sequence from bottom to top, so the nutrients supplied for root growth increase in sequence, and the number of roots produced also increases. The nodes of the aboveground part generally do not produce roots. The nutrients produced by the leaves are
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Identification of Symptoms and Control Methods for Powdery Mildew on Licorice
It mainly damages leaves, and can also damage pods. The surface of affected leaves and pods is covered with a layer of white powder, and later many small black spots appear on the lesions, which can cause early defoliation or wilting of the whole plant. Control methods: spray 0.1-0.3 degrees Baume lime sulfur mixture, 50% thiophanate-methyl wettable powder 800 times dilution, 50% amobam 600 times dilution.
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