| Název článku: | Možnosti intenzifikace pěstování prostokořenných sazenic douglasky tisolisté s využitím minerálních hnojiv s růstovými regulátory a pomocných rostlinných přípravků |
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| Číslo: | 3 |
| Rok: | 2017 |
| Autor: | Aleš Kučera, Radka Térová |
The presented study deals with an intensification of Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) nursery stock cultivation using (1) combined fertilizers with specific composition of N-P-K-Mg with addition of plant growth regulators, (2) organic-mineral substances, acid-alkaline alcoholic-water extract with phytostimulants, and (3) combination of both the preceding treatments. Preparations were applied in nursery bed with bareroot one-year and two-year-old seedlings in 2015 to evaluate seasonal effect of single-shot application with reflection of starting position of biometrical parameters, soil and nutrition status. The biometrical measurement was performed in three categories of seedlings (small, medium and high). Aboveground biomass growth reacted significantly on organic-mineral stimulative treatment (2) and (3); fine roots developed better after application of combined fertilizer with plant growth regulators (1). Results show perspectives in use of modern technologies in nursery stock production, with regard to proportional optimization of fine roots, as well as total root biomass, after reflection of height differentiation of one- and two-year-old seedlings.
