The aim of the thesis was to asseses the impact of biological protection on the yields and biometrics of broad bean, Windsor White variety. A field research was conducted in the years 2010-2012 in the Experimental Agricultural Farm in Prusy near Kraków. Double-factor experiments were conducted in the random blocks system in three repetitions on a very good wheat complex soil. The following five combinations of the biological protection of broad bean were compared in experiments. Based on the conducted research, it was found that years significantly diversified broad bean yields and biometrics. In 2011, with the most advantageous weather conditions, broad bean yielded the best; it had the highest number of seeds in a pod and, at the same time, the lowest number of sprouts in a plant. The most disadvantageous year, in these terms, was 2012 which was characteristic for the highest deficiency of precipitation. The compared protection combinations demonstrate that adding Polyversum WP biological preparation to seeds before sowing and the application of Bioczos BR agent on leaves twice or four times and Biosept 33 SL once contributes to the significant increase in broad bean yields. Whereas, the coordinate sowing of broad bean with coriander and fennel resulted in the drop in seeds yields, deteriorated yield structure parameters and biometric properties.