Search

A field study was conducted in the period 2004-2007 at the Czesławice Experimental Farm, belonging to the University of Life Sciences in Lublin, on loess-derived grey brown podzolic soil (good wheat soil complex). This study determined the effect of two levels of nitrogen fertilization on yield and the basic quality traits of grain of the winter wheat cultivar 'Muza'. The study results show the dependence of the grain quality characters mainly on variable weather conditions throughout the study period and to a lesser extent on the level of nitrogen fertilization. Good technological parameters were obtained in the seasons with low rainfall and high air temperature. The study also demonstrated that the higher rate of nitrogen tended to have a positive effect on total protein and wet gluten content, falling number, sedimentation value, and grain test weight. In spite of the lack of significant differences, the quality of gluten was found to decrease with the increasing rate of nitrogen. [ABSTRACT FROM AUTHOR]

In the years 2007-2008, experiments were conducted with four cultivars of garden pansy grown in pots, in media prepared as mixtures of wet shrimp waste (BioHydroHumus) and sphagnum peat at the following volumetric ratios: 2% BioHydroHumus + 98% sphagnum peat, 5% BioHydroHumus + 95% sphagnum peat, 10% BioHydroHumus + 90% sphagnum peat. The Osmocote Exact 5-6 M (15:8:10:3MgO + microelements) fertilizer at the rates of 2.5 and 5.0 g x dm³ was added to each medium. Sphagnum peat with addition of 5.0 g x dm³ Osmocote Exact 5-6 M was used as control medium. It was found that BioHydroHumus can be a source of macroelements in the cultivation of garden pansy. It is characterized by alkaline reaction and high total soluble salts. BioHydroHumus used as a component of media affects the quality of cultivated plants. The best results were obtained when BioHydroHumus was used at the rates of 2 and 5%, even if the rate of fertilizer were twice smaller than in control medium. At full flowering, plants grown in medium containing 5% BioHydroHumus were the most branched. Garden pansies cultivated in medium containing 10% BioHydroHumus were characterized by a smaller number of leaves. Plants grown in media with addition of 2 and 5% BioHydroHumus flowered more abundantly in comparison with garden pansies cultivated in medium containing 10% BioHydroHumus, regardless of the rate of fertilizer. However, an ambiguous influence of BioHydroHumus on height and diameter of garden pansy cultivars was found. [ABSTRACT FROM AUTHOR]