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    0503 Soil Sciences (1)
    0703 Crop and Pasture Production (1)
    070308 Crop and Pasture Protection (Pests, Diseases and Weeds) (1)
    100202 Biological Control (1)
    Gaeumannomyces graminis (1)
    Lolium perenne (1)
    Trichoderma atroviride (1)