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A technology for spot blight and gentian gentiana is applied in the field of prevention and control of gentian spot blight in Yunnan, and can solve the problems of declining average yield, no technology for preventing and treating gentian blight in Yunnan, and affecting the yield and quality of gentian in Yunnan. , to achieve the effect of good control effect, high yield and high quality
Inactive Publication Date: 2010-01-20
INST OF MEDICINAL PLANTS YUNNAN ACAD OF AGRI SCI
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At present, spot blight has a 100% incidence rate on 2-3 year-old Gentiana gentiana, and the average yield has dropped by 40%-50%, seriously affecting the yield and quality of gentiana.
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example 1
[0018] Example 1: Planting on a hillside at an altitude of 2000-2500m
[0019] 1. Site selection, site preparation and soil disinfection
[0020] Choose fertile sandy loam soil with gentle slopes to plant Gentiana gentiana, disinfect the soil 10 days before sowing and transplanting, and mix the soil with 10 g of 40% pentachloronitrobenzene powder per square meter.
[0021] 2. Disinfection of seeds and seedlings
[0022] Soak the seeds with 200 times liquid formaldehyde for 30 minutes before sowing, then rinse with water for 3 or 4 or 5 times, then soak the seeds with 200 ppm gibberellin for 24 hours, or soak the seeds with 200 ppm gibberellin and 600 times liquid 70% thiophanate-methyl for 24 hours Hours, carry out seed treatment, sow after drying.
[0023] Before the seedlings are planted, use 400 times of liquid 70% mancozeb or 600 times of liquid 50% carbendazim wettable powder to soak or spray the gentiana seedlings for 12 hours to make the seedlings free of bacteria tr...
example 2
[0029] The selection of the specific value of the medicament multiple liquid in the embodiment depends on the degree of disease. Example 2: Planting on flat ground at an altitude of 1800-2500m
[0030] 1. Site selection, site preparation and soil disinfection
[0031] Choose sandy loam soil with good drainage and loose soil for box planting. The box height is 25-30cm, the box width is 100-130cm, and the ditch width is 30-50cm.
[0032] Disinfect the soil 10 days before sowing and transplanting, and mix the soil with 10 g of 40% pentachloronitrobenzene powder per square meter.
[0033] 2. Disinfection of seeds and seedlings
[0034] Before sowing, soak the seeds with 200 times of formaldehyde for 30 minutes, then rinse with water for 3 or 4 or 5 times, and then soak the seeds with 200ppm gibberellin for 24 hours, or soak the seeds with 200ppm gibberellin and 600 times of 70% thiophanate-methyl for 24 hours. Hours, carry out seed treatment, sow after drying.
[0035] Before ...
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Abstract
The invention relates to a control method of gentiana rigescens spot blight, which belongs to the technical fields of plant protection and traditional Chinese medicinal material cultivation. The method comprises the following steps: 1. land selection, land preparation and soil disinfection: selecting sandy soil slope land with fertile and loose soil for planting, or cultivating by building a high box from the flat land, and disinfecting the soil ten days before seeding and transplantation; 2. seed and seedling disinfection: processing seeds before seeding, and disinfecting seedlings before fixing planting; 3. a reasonable planting system as well as normative and scientific field management: carrying out reasonable interplanting, crop rotation for more than three years, reasonable thick planting, intertillage weeding and scientific manuring, preventing water accumulation and cleaning the field in time; and 4. chemical control. The invention adopts an integrated control method of the gentiana rigescens spot blight by combining soil disinfection, seed and seedling processing, agriculture measures and chemical control, and the method has the advantages of prevention of the gentiana rigescens spot blight from a source, good control effect of the gentiana rigescens spot blight as well as high yield and quality of gentiana rigescens, and can be widely suitable for planting gentiana rigescens medicinal herbs.
Description
Technical field: [0001] The invention relates to a method for preventing and treating gentian gentian spotted blight, and belongs to the technical fields of plant protection and traditional Chinese medicine cultivation. Background technique: [0002] Gentiana rigescens, also known as Gentiana rigescens, is a perennial herbaceous plant belonging to the family Gentianaceae and the genus Gentiana. Produced in Yunnan, Sichuan, Guizhou, Hunan, and Guangxi, it grows in hillside grasslands, bushes, forests and valleys at an altitude of 1100-3000 meters. The roots and rhizomes are used as medicine. It is very cold in nature and bitter in taste. It has the functions of clearing heat and dampness, purging liver and gallbladder fire, etc. It is a commonly used bulk Chinese herbal medicine. Dian gentian is sold well in various domestic provinces because of its high content of gentiopicroside, and the market demand continues to increase. In order to fundamentally solve the raw material...
Claims
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Application Information
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