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What are the key technical points for licorice seedling raising and transplanting?
(1) Site selection and land preparation: Licorice has strong adaptability and can be grown in general soils, but sandy loam with deep, loose, well-drained soil is best. Combined with autumn deep plowing, apply 2000 kg of decomposed farmyard manure per mu, and 20 kg of diammonium phosphate or superphosphate, then rake level, harrow fine, and make beds. (2) Seedling raising and stand maintenance: Seedlings can be sown in early May. Before sowing, water the seedling plot thoroughly; when the soil surface is slightly dry, drill sow with a narrow-row seeder, using 8-10 kg of seed per mu, maintaining 100,000-120,000 plants. After the seedlings emerge evenly, water to preserve soil moisture, and keep the field free of weeds during the growing period. When the seedlings grow to 10-15 cm, apply 1 topdressing of urea with irrigation, at 10 kg per mu. In the later growth stage, water as appropriate depending on the weather.
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Detailed Explanation of Licorice Cultivation Techniques and Methods
Licorice is a perennial herbaceous plant of the Fabaceae family, and the medicinal parts are the root and rhizome. It contains 5-11% triterpenoid compounds, glycyrrhizin, followed by flavonoid compounds such as liquiritin, liquiritigenin, isoliquiritin, isoliquiritigenin, etc. It is neutral in nature and sweet in taste, harmonizes the middle and relieves acute conditions, moistens the lungs, removes toxins, and harmonizes all medicines, making it an indispensable herb in many traditional Chinese medicine prescriptions. (1) Site selection and land preparation. Licorice prefers arid climates and is suited to sandy loam with deep soil layers and a low groundwater table, which can achieve high starch content, less fiber, strong sweetness, and good quality.
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Detailed Guide to Herbicide Application Techniques in Licorice Fields (Part Two)
Weeds can severely affect the yield and quality of licorice, competing with licorice for sunlight, water and nutrients. Some weeds are also intermediate hosts for licorice crop pests and diseases, helping pests and diseases spread and transmit. Especially for artificially cultivated licorice at the seedling stage, if weeds are not removed in time, a large number of seedlings will die, or even the entire crop will be destroyed. Now, in addition to manual weeding, chemical herbicides are often used for weed control. In our county, the following 3 chemical herbicides are currently promoted for artificially cultivated licorice: acetochlor, pendimethalin, and doucaote. Practice has proved that using chemical herbicides for weed control is the guarantee
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Detailed Explanation of Licorice Trench-Sowing Direct-Seeding Cultivation Technology
Licorice is a deep-rooted plant. Adopting trench-sowing direct-seeding cultivation technology can solve unfavorable factors such as licorice seedling raising, transplanting, low yield, and long growth cycle, greatly improving its economic benefits. **Tekes County in Ili belongs to the northern temperate continental climate type, and its natural geographical environment is very suitable for licorice growth. In 2005, we used the deep-rooted plant trench-planting machine for licorice cultivation for the first time in the whole of Xinjiang, changing the conventional licorice planting model. The trench-sowing direct-seeding cultivation technology is now introduced as follows. 1 Site selection, base fertilizer application, land preparation Select fertile
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Key Technical Points for Large-Scale Cultivation of Licorice with High Quality and High Yield
Field Management 1. Intertillage and weeding: After the seedlings emerge completely, intertillage and weeding should be carried out promptly so that there are no weeds in the field. For ridge planting, three hoeings and three ridgings can be done; for bed planting, weeds on the bed surface should be pulled out. This is the key to high quality and high yield. Where conditions permit, closed weeding can be carried out after sowing and before seedling emergence, using Douhuanglong (20% chlorimuron-ethyl) wettable powder 2 bags/mu mixed with acetochlor 2-4 bottles/mu and sprayed over the field. After seedling emergence, herbicides killing monocotyledonous plants can be sprayed to eliminate weeds.
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Licorice Disease Prevention and Control Methods and Key Technical Points
(1) Rust disease: When infected, yellowish-brown scar-like lesions appear on the underside of the leaves. After the epidermis ruptures, brown powder is released; this is the uredinium of the pathogen. From August to September, dark brown telia form, causing the leaves to turn yellow and wither, and in severe cases to fall off. Control methods: Apply more phosphorus and potassium fertilizer to improve the plant's disease resistance. Remove diseased plant debris and burn it in a centralized manner. At the early stage of the disease, spray with 15% triadimefon at 1000 times dilution, or 97% diniconazole at 400 times dilution. (2) Brown spot disease: It damages the leaves, and affected leaves develop round or irregular lesions. The
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Detailed Explanation of the Four-Harvest Cultivation Model: Rice, Cotton, Garlic, and Potato
The Gao'an Agricultural Technology Station in Fanchang County, Anhui Province, has promoted a three-dimensional cultivation model of four harvests per year: upland rice, cotton, green garlic, and potato. Per 667 sq m, it yields 213 kg of upland rice, 200.7 kg of seed cotton, 510 kg of green garlic, and 1,480 kg of potato, achieving good economic benefits. The cultivation model is as follows. I. Planting Method Each planting strip is 1 m wide. Cotton is grown in single-row ridges; cotton rows are ridged in single rows 50 cm wide, with 1 m between ridges, and a 50 cm wide bed surface is made between two ridges. Cot-
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Israeli upland rice is a premium variety among upland rices.
Israeli upland rice is the latest improved upland rice variety introduced and trial-planted by the Science and Technology Association of Mudan District, Heze City, Shandong. This rice has strong drought resistance and strong lodging resistance; it is a new variety with high quality and high yield, with a whole growth period of about 140 days. Thousand-grain weight 27 grams, grains per panicle 130--160, average yield about 600 kg per mu, and high yield can reach more than 700 kg, and it saves labor and time, with benefits 2--3 times that of corn. Sowing time: in North China it can be sown before June 15, and in Northeast China before May 1. Sowing method: before sowing, plow the land deeply to level it.
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Analysis of the Current Status and Existing Problems of Upland Rice Production
Upland rice, also known as dryland rice, is a type of cultivated rice with strong drought resistance, tolerance to poor soil, and suitability for dryland direct seeding and dryland management. It can be planted in any soil suitable for growing major dryland grain crops such as wheat and corn. It does not require water layer management throughout the entire growth period, and its irrigation volume is only 1/4 to 1/10 that of paddy rice. Upland rice is more drought-tolerant and barren-tolerant than paddy rice, and has the water-saving characteristics of low input and high output. I. Overview of World Upland Rice Production Currently, the world's upland rice planting area is 0.18 billion hectares. In West Africa, upland rice accounts for more than 75% of the rice growing area, and in
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Successful breeding of the new upland rice variety Xiahan 51
This achievement is an early-maturing japonica-type upland rice with strong drought resistance, high yield, and average grain quality. It is susceptible to rice blast and resistant to narrow brown leaf spot, and is suitable for upland cultivation. Plant height is 86.8 cm, the plant type is relatively compact, the leaves are erect at the seedling stage, the leaf color is dark green, and growth is steady; growth is vigorous in the mid-to-late stages, with relatively high tillering ability and productive tiller rate, and relatively strong lodging resistance. Panicle length is 15.1 cm, total grains per panicle are 88-90, seed-setting rate is 90%, and 1000-grain weight is about 25 g. Disease resistance: leaf blast grade 3, neck blast grade 7, narrow brown leaf spot grade 1. Main grain quality indicators
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