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Causes of Potato Degeneration and How to Prevent It
(1) Causes of Potato Degeneration When potatoes are planted in spring in the hot summer regions of the south, after one or several years the yield gradually declines, and there may even be no harvest at all; this phenomenon is called potato degeneration. The direct external cause of potato degeneration is damage by viruses. Common ones in the south include mosaic virus, leafroll virus, common mosaic virus and spindle tuber viroid. These viruses are transmitted through mechanical friction, aphids, leafhoppers or soil nematodes and other vectors, infecting the plants and causing degeneration. High temperature is the indirect external cause of potato degeneration.
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What to Do About Tulip Variety Degeneration? Detailed Solutions
Imported tulips often perform well in the first year of bulb growth, with large flowers and vivid colors. Starting from the second year, the flowers become smaller, the colors turn dull, the leaves and petals show color-breaking patterns, and the plants grow poorly. This is mainly due to virus damage, commonly mosaic virus and color-breaking virus, which cause yellow and white stripes and irregular spots on the leaves. In severe cases, the leaves rot and the flower colors become mottled. Control methods: 1. Use virus-free plants obtained through shoot-tip culture when planting, or choose varieties with strong virus resistance; 2. Promptly
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Forecast for the occurrence trend of the first generation of the striped stem borer in rice is released
1. Occurrence level: The first generation of the striped stem borer, the main rice pest in our city, is expected to occur at a moderate-to-severe level, with the affected area in the city reaching more than 250,000 mu, of which more than 50,000 mu are early-planted idle fields. 2. Occurrence period: Moths seen under light on April 11, the beginning of the peak moth emergence period 5/9-12, the peak moth emergence period 5/20-24; the peak egg hatching period 5/27-5/30, the peak period of first and second instar larvae 6/4-6/10, the occurrence period is 3 days later than the average of the past three years. 3. Forecast basis 1. Development progress: This year 4/2
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Comprehensive Review of Food Waste Generation and Disposal Capacity Across Taiwan: The Six Special Municipalities
The Battle Against Epidemic and Food Waste 06"Comprehensive Review of Food Waste Generation and Disposal Capacity Across Taiwan (Six Special Municipalities)
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Food waste power generation feeds in 250 metric tons per day, estimated to supply electricity for 60,000 households annually
The Battle Against Epidemic and Food Waste 09"Food waste-to-power packs a punch, 250 metric tons of food waste fed in daily, estimated annual output to supply electricity for 60,000 households
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Avian influenza runs rampant in the cold winter, and mixed raising of three generations of laying hens is the toughest; open-air duck farming must be tightened and controlled
Battling the peak of avian influenza in the cold winter! Mixed raising of three generations of laying hens is the toughest; open-air duck farming must be tightened and controlled
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The Battle Over Epidemic Prevention and Food Waste 12" (Keelung, Yilan, Hualien, Taitung) A Full Inventory of Food Waste Generation and Disposal Capacity Across Taiwan
The Battle Over Epidemic Prevention and Food Waste 12" (Keelung, Yilan, Hualien, Taitung) A Full Inventory of Food Waste Generation and Disposal Capacity Across Taiwan
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The Importance of Food Waste Sorting and an Analysis of Processing Volume and Generation Volume
The Battle Against Epidemics and Food Waste 11 (Changhua and Chiayi County/City) A Comprehensive Inventory of Food Waste Generation and Processing Capacity Across Taiwan
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The Battle Against Epidemic and Food Waste 06"A Comprehensive Review of Food Waste Generation and Disposal Capacity Across Taiwan (Six Municipalities)
The Battle Against Epidemic and Food Waste 06"A Comprehensive Review of Food Waste Generation and Disposal Capacity Across Taiwan (Six Municipalities)
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The Generation Mechanism of Traditional Agrarian Society and an Analysis of the Dynastic Cycle
The Generation Mechanism of Traditional Agrarian Society and the Dynastic Cycle
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