The authors present the effect of a mixture of microelements (boron, molybdenum, and manganese) as well as that of Florovit containing considerable amounts of microelements on the productivity of cultivars of green peas — Opal and Ramir — differentiated as to morphology and biology. Fertilization with a water solution applied at the beginning of appearance of flower buds. A favourable effect of the mixture of microelements and Florovit was ascertained on the yield of seeds and that of protein per unit of superficy as well as on the amino acid composition of the protein of seeds of the investigated cultivars of peas.