Two field experiments were carried out at the Research and Experimental station of the Faculty of Agriculture at Moshtohor, Zagazig University during 1985 and 1986 seasons. The study aimed to elucidate the effect of N, P and K on growth characters of soybean. Dry weight of different plant organs, i.e., leaves, branches and pods as well as the whole soybean plant at different stages of growth significantly increased with increasing N-levels up to 80 kg/fed, in the two seasons. Similarly, number of leaves/plant, number of branches/plant as well as number of pods/plant were affected markedly by different levels of nitrogen. On the other hand, addition of P and K had no significant effect on all growth characters under this study.