Wpływ udziału Plantago lanceolata na plonowanie i jakość runi pastwiskowej

Studies were conducted between 2009 and 2011 on a two-component plot, established in the Notec Valley, on a renewed pasture for milk cows located on highly mineralized organogenic soil. Plantago lanceolata comprised 20 or 40% (5 or 10 kg seeds per hectare respectively) in grass-legume mixtures containing Lolium perenne or Dactylis glomerata as the dominant species. During the first year, the growth of Plantago lanceolata was limited more by Lolium perenne than by Dactylis gomerata. In the following years, Plantago lanceolata receded from the pasture, mostly due to competition from Dactylis glomerata, better accustomed to the habitat and transient humidity deficiency. However, its participation in the sward was always higher than that of Trifolium repens, comprising 20% of the sowing mixture. During the three year study period, the dry mass yields of the control mixtures (grass-legume) with a 20 or 40% participation of Plantago lanceolata, fertilized with 90 kg N, 100 kg K and 44 kg P, were largely similar. On average, mixtures containing Dactylis glomerata gave slightly higher yields (~10.0 t ha–1) than those containing Lolium perenne (~9.5 t ha–1). Plantago lanceolata contained more dry mass than Trifolium repens and other dicotyledonous plants. In comparison to both primary grasses it contained less crude fibre, more water-soluble sugars as well as more phosphorus and calcium.