Bellingham, Roscoe C.2015-05-122015-05-121949https://scholarworks.montana.edu/handle/1/7084enSugar beetSeedlingsFungal diseases of plantsSoilsCropsThe effect of various soil amendments and preceding crops on seedling disease of sugar beets caused by Aphanomyces cochlioides DrechsThesisCopyright 1949 by Roscoe C. Bellingham