The aim of the present research was to determine the biomass yield and health status of three legume species: serradella, pea and yellow lupin, grown in stubble intercrop, after spring barley. Fields experiments were carried out at the Experiment Station of the Faculty of Agriculture at Mochełek, in the vicinity of Bydgoszcz, on light soil, of very good rye complex soil, over 2002-2004. Of the crops studied, the greatest amount of the total dry matter was produced by yellow lupin (3.31 t·ha^-1), and the least – by serradella (2.43 t·ha^-1). Pea produced the greatest aboveground biomass yield, while yellow lupin – significantly greater post-harvest residue mass than serradella and pea. There was observed a relatively low infection of the root crown and roots in serradella, slightly higher – in yellow lupin and pea. The main reason of the disease symptoms observed were Fusarium genus fungi, especially F. solani. There was found no significant effect of intercrops on the chemical composition of soil.

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