EN
The aim of performed investigation was to determine the occurrence of diseases and pests in maize grown using the method of direct sowing, after white mustard, in dependence on the kind of fertilizer, mode of fertilization and mode of applying nitrogen fertilization. The use of a part of nitrogen dose in form of RSM-28 reduced the number of plants damaged by frit fly in comparison with the application of total nitrogen dose before sowing. Starter fertilization increased percentage of plants infected by common smut, in comparison to broadcast fertilization.