EN
The experiments with Trifolium repens in pure sowing were established on black soil and peat-muck soil. Fertilization in the experiments equated to a dose of 44 kg ha⁻¹ P, 66 kg ha⁻¹ K, 90 kg ha⁻¹ N on mineral soil and 45 kg ha⁻¹ N. In two harvest years (1998-1999) productivity of eleven white clover cultivars: 'Alice' , 'Anda', 'Armena' , 'Arta', "Astra', 'Dara', 'Rema', 'Romena', 'Riesling', 'Riwendel' and 'Santa' was assessed. The plants were cut three times a year. In the study period average yields of white clover cultivars were high. Weather conditions in 1998 were more beneficial for growth and productivity of Trifolium repens than during the next vegetative period. Yielding of white clover in pure sowing depended on the year of clover utilisation and the type of soil and also interaction between soil and clover cultivar. Greater productivity of this species was noted in the first harvest year. Large and medium-leaved cultivars - 'Alice' , 'Anda', 'Armena', 'Arta' and 'Dara' - yielded higher on the light mineral soil than on the peatmuck soil. Habitat conditions did not differentiate the productivity of small-leaved clover cultivars 'Riesling' and 'Riewendel' and caused only minimal changes in the productivity of some medium-leaved cultivars, e.g. 'Rema' and 'Romena'. Such maintenance of mentioned cultivars seems to be indicative of their higher water requirements.