Wpływ nawożenia azotowego na plon i skład botaniczny runi mieszanki Lolium perenne/Trifolium repens

Lolium perenne cv. Argona sown in pure sowing and in mixture with Trifolium repens cv. Anda in 50% share of each component was studied in the condition of three level of nitrogen (N): 0,60 and 120 kg per ha. It was shown that effects of increasing nitrogen rates the percentage of Trifolium repens whereas the share of Lolium perenne was increased. Mixture Lolium perenne/Trifolium repens gave higher yield than Lolium perenne in pure sowing and furthermore yield of mixture was higher when nitrogen fertilizers were not used.