| Name of article: | Vliv hnojení na výživu a růst smrku ztepilého (Picea abies /L./ Karsten) na lokalitě Špičák v oblasti Krušných hor |
|---|---|
| Number: | 2 |
| Year: | 2011 |
| Author: | Dušan Vavříček, Jan Pecháček, Gabriel Baláž |
In the past, in Špičák research locality (FTG 7K (Fageto-Piceetum acidophilum), 880 -890 m a.s.l.), whole-area preparation of the site was applied using bulldozer technologies. At present, the line windrows were spread, and subsequently this plot was reforested with Norway spruce. One year after reforestation, seedlings were fertilized with Silvamix® fertilizer tablets and dolomitic limestone. The main aim of this study was to verify whether the soil environment (3 years after windrow spreading and 2 years after fertilizer application) was sufficiently suitable to ensure optimal nutrition and growth of Norway spruce. This investigation continued within 3 years after reforestation. With the exception of the first year (transplant shock), nutrition on control plots was optimum for the whole time of observation. Applied fertilizers influenced the nutrition of Norway spruce only slightly. During two years of observation, statistically higher potassium nutrition was found out on plots fertilized with Silvamix® R. On plots fertilized with dolomitic limestone, a moderately favourable influence on magnesium and calcium nutrition was observed, but this influence was not statistically significant. Starting from the first year after reforestation, height increments of the observed spruce plantation were quite high (on control plots). On plots treated with Silvamix® fertilizers, height increment from the first year after application was significantly higher than on control plots. Plots fertilized with Silvamix® R showed the highest aboveground increment. The influence of dolomitic limestone on plantation growth is currently very small, height increments in these treatments are on the level of control plots. Based on our observations, it was proved that the substrate of spread windrows can sufficiently ensure the nutrition and growth of Norway spruce plantation during the first three years after reforestation. In the soil environment with a high value of maximum absorption capacity, the point application of Silvamix® fertilizer tablets can significantly ensure the growth and development of spruce plantation.
