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Studies with cultivation of Dactylis glomerata (cultivar Borna), Festuca pratensis (cultivar Ureus) and Lolium perenne (cultivar Inka), were carried out in the polyurethane pots, in 4 replications, on the experimental area of Department of Grassland and Green Area Creation. Eight seeds of one of the tested species were sown into each of the pots. After germination of grains, when the seedlings reached the 2-3 leaf stage, negative selection was carried out by removing 4 weakest plants. Then, four experimental factors in the form of the following fertilizer combinations were introduced: control – without fertilization, NPK – mineral fertilization, UG – microbiological fertilizer, UG + NPK – combined rates as for combinations NPK and UG. The experiment was carried out in 2008-2010. Detailed study included the following characteristics: aboveground biomass yield (g DM·pot-1) and leaf greenness index (SPAD). All tested grass species reacted to fertilization applied in the experiment. However, significantly highest yield occurred on the objects with mineral fertilization combined with a microbiological fertilizer (on average 96.97 g DM·pot-1). The largest amount of chlorophyll pigment occurred in plants cultivated on soil with a microbiological fertilizer and with a microbiological fertilizer together with mineral fertilization. The study showed usefulness of a microbiological fertilizer in the cultivation of Dactylis glomerata, Festuca pratensis and Lolium perenne. However, its highest effectiveness was observed in combination with mineral fertilization.
The aim of this study was to determine the effect of soil’s fertilizer on the formation of biomass of aboveground parts of Festulolium braunii. Rings with a 36 cm diameter and a 40 cm high was embed on a depth of 30 cm and was filled with soil material. Then, to each rings were seeded eight seeds of tested grass species. It was the following combinations of fertilizer: Control-no fertilizer, NPK – the annual doses of 0.6 g N ring–1, 0.25 g of P2O5 ring–1 and 0.9 g K2O ring–1, UG – soil’s fertilizer at a dose of 3.7 cm3 ring–1 as a 0.25% solution, UG + NPK – in the combined doses as for the combination „NPK” and „UG”. Full period, of three movings use of experimental objects was in years: 2008, 2009 and 2010. Detailed study included: aboveground biomass yield (g DM ring–1), the number of shoots (no ring–1), leaf length (cm), width of leaf base (mm), leaf greenness index (SPAD). Regardless of study years, combining of mineral fertilization with soil’s fertilizer, resulted in a significant increase of dry matter yield of plants, relative to control objects as well as to suppled only with soil’s fertilizer or mineral fertilization. The largest number of shoots, leaf length and width of their base as well as the highest values of SPAD occurred on the objects with soil’s fertilizer used together with mineral fertilization.
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