| 摘 要： | The test shows: 1. During paper pot culturing seedling period, if the temperature iscontrolled atabout 10-20℃ with available soil moisture content, the seedlinggrowing power will be enhan ed and the seedling diseases incidenec will belowering. 2. If the sugarbeet seeds are covered with 0.8% soil and chemicalsof Thiram 50%, the seedling diseases can be prevent and seedling can growsafely. 3. If fine sand is used covering soil, the soil aeration will beimproved, the seedling diseases incidence will be lowering. 4. Using 0.8% chemicals of 50% Thiram spraying seedling for cont-rolling seedling rot diseases can not prevent the seedling from the diseasesbut damage the seedlings.
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