Perspektivní hnojiva pro produkci okrasných dřevin v kontejnerech

The task of this work was to evaluate the prospective use of fertilizers in containerproduction and their impact on ornamental trees. The experiment was established in April 2011 on the land department the Faculty of Horticulture in Lednice in one growing season. It was used five variants of substrates. For variant I was used peat-bark substrate (RKS II), which was regularly fertilizing with Kristalon fertilizer. For variant II was used substrate RS II with Osmocote. For the other three variants was used substrate RS II with low content (var. III), medium content (var. IV) and high content of organic fertilizers (var. V). Experimental plant was Philadelphus x hybr. 'Mont Blanc'. During the growing season was measured the plant height, at the end of the vegetation was measured strength of the root neck, root volume and number of stems. The variant II with Osmocote achieved the best results, the control variant I reached the second best results. The variants III, IV and V with organic fertilizers fell the worst, the variant III with low content of organic fertilizers fell the worst of all