The influence of lead on the growth Trifolium repens L. and Phleum pratense L. in the monocultures and plant mixture on light soil of different acidity

The purpose of the microplot experiment, on the light soil, was determination of concentration of lead at different pH, inhibiting growth of Trifolium repens L. and Phleum pratense L. at the monoculture and at the mixture of these two species. Four levels of the concentration of the lead applicated into the soil were. During vegetation season 1993, harvested 3 cuts of the green fodder. The biometrical analyse of the plants at the all 52 fields made before I cut of the green fodder. It was confirmed, that the both species had been growing better at the monocultures than at the mixture treatments. Trifolium repens L. plants had been growing better at the less acid soil and Phleum pratense L. plants - at the more acid soil. On more acid soil - Trifolium repens L. plants growth were strongly inhibited then on the less acid one