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What kind of disease is sorghum covered smut?
What is sorghum covered smut? Please provide an introduction and control methods. Sorghum covered smut occurs occasionally in localized areas of Northeast China, Shandong, Inner Mongolia, Henan, Hebei and other places. It is caused by Sphacelotheca sorghi. Symptoms: symptoms appear at the heading stage; diseased plants are not stunted; usually all grains in the panicle become egg-shaped gray galls, with a hard outer membrane...
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Transmission Routes and Control Methods of Barley Covered Smut
How is barley covered smut transmitted? What control methods are there? (1) Occurrence pattern: The transmission routes of the barley covered smut pathogen occur in two situations: one situation is that during threshing, black powder (chlamydospores) gets mixed in, and the chlamydospores adhere to the seed surface; after barley is sown, the chlamydospores germinate into hyphae and invade the young tissues of the barley seedlings...
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Key Technical Points for Multi-Layer Covered Seedling Raising of Cucumbers in Spring Greenhouses
I. Greenhouse Structure. The best span for the greenhouse is 6-8 m. Put on the greenhouse film in early November. Set up a 1.5 m low tunnel inside the greenhouse and cover it with 3 m wide greenhouse film. At night, cover the low tunnel with a thick straw mat, and add a layer of old greenhouse film over the straw mat, which greatly enhances heat preservation. After seedling raising, cucumbers can still be planted in the greenhouse. II. Nutrient...
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Detailed Explanation of Multi-Layer Covered Seedling Cultivation Technology for Cucumbers in Spring Greenhouses
1. Do not arbitrarily change the light-receiving angle of the greenhouse. The angle of the solar greenhouse currently used for cucumber cultivation has been scientifically verified over a long period. Its north-south span, height, and rear slope angle should not be arbitrarily changed. 2. Do not apply concentrated fertilizer at transplanting. Various chemical fertilizers, especially nitrogen fertilizers, under humid and high-temperature conditions, will produce large amounts of...
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Key Techniques for Three-Membrane Covered Cultivation of Winter-Spring Potatoes
Three-membrane covered cultivation techniques for winter-spring potatoes (large arch shed, small arch shed, plastic film). Generally, sprouting is promoted and sowing is done in December, and harvest takes place at the end of March the following year. Each mu can yield about 3500-4000 kg of potatoes. It reaches the market one month earlier than early-spring plastic film covered potatoes, and the economic benefits are very significant. The cultivation techniques are as follows: 1. Site selection, shed construction specifications and planting specifications (1) Site selection and shed construction specifications. Choose plots with loose soil, sufficient water sources, and convenient drainage and irrigation to build sheds. Large arch sheds are generally 60 m long
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