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During the 1995–96 growing season, the effects of fertiliser application and growth of different crops on the population of Fzrsarium oxysporum f. sp, vasinfictum (Fov) in field soils were examined. In soil samples collected 35 days after fertiliser application, densities of Fov were significantly lower in soils receiving 180 units of anhydrous ammonia than in those receiving 40 or 180 units of urea...
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