AND AFTER STORAGE

A b s t r a c t The paper presents the results of a three-year exact ex-periment conducted in Bałcyny, in which a late potato cultivar, Jasia, was grown. The objective of the study was to determine the effect of different levels of mineral fertilization: A (N 80 kg ha-1 P 80 kg ha-1 K120 kg ha-1) and B (N 120 kg ha-1 P 144 kg ha-1 K156 kg ha-1), and foliar fertilization (Basfo-liar 12-4-6, ADOB Mn and Solubor DF) on the quantitative and qualitative composition of fungal populations colonizing potato tubers. Fungi were isolated immediately after harvest and after a five-month storage period. After seven days of incubation, fungal colonies were transferred onto agar slants for microscop-ic identification. Over the entire experimental period, more pathogenic fungi were obtained from potato tubers analyzed after storag