条件筛选
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What fertilizer is soybean lacking and how can you tell?
What methods are used to treat soybean sclerotinia rot? Soybean sclerotinia rot mostly starts at the branching point on the middle and lower part of the plant's main stem. The lesions are water-soaked, irregular in shape, light brown or nearly white, and can encircle the stem and spread upward and downward. The part above the diseased area often dies, and the stem can also break. When humid, the diseased area produces cottony white mycelium,...