The research was conducted in 1997 and 1999 in the Agricultural Experiment Station at Swojec in the vicinity of Wrocław. The aim of the present research was to evaluate the effect of simplified tillage and direct sowing for two nitrogen fertilisation levels on the degree of spring wheat infection with pathogenic fungi inflicting on foot-rot complex. The main reason of the diseases of the wheat culm base were Fusarium fungi, especially: F. culmorum, F. avenaceum, Rhizoctonia cerealis and Bipolaris sorokiniana. Simplified tillage did not affect the degree of the plant infection. However a lower level of nitrogen fertilisation (100 kg of N·ha-1) was favourable to the development of fungi of the Fusarium genus. Additionally such a nitrogen dose showed a considerable increase in the number of F. culmorum, and 200 kg of N·ha–1 F. avenaceum was more frequent.

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