The aim of this thesis was to evaluate the influence of planting term and soil additives Stockosorb and Silvamix on growth and survival of bareroot and containergrown spruce seedlings in conditions of calamity area situated in Javorie Mts. (Central Slovakia). Experimental plot was estabilished in random blocks in fall 2014 and spring 2015. The thesis contains results after the first and second growing season. Survival rates afer the first growing season were 59 % resp. 55 % for fall, 85 % resp. 84 % for untreated seedlings outplanted in spring, 86 % resp. 67 % for seedlings with added Stockosorb and 68 % resp.63 % for seedlings with added Silvamix. After the first growing season bareroot seedlings were damaged more often (in average 21,8 %), than containergrown seedlings (6,75 %). Seeddlings with added fertilizer were highest after the first growing season and after the second growing season they reached the biggest diameter in root colar and volume of stem. Seedlings, containergrown (11,3 cm) after the first year and bareroot after the second year (26,4 cm), with added fertilizer also reached significantly higher increment in compared to seedlings outplanted in fall term (7,7cm resp.17,5 cm). We have also collected needles for chemical analisys after both growing seasons. Next we evaluated weight parameters and parameters of root system on certain number of seedlings picked up from the plot after both growing seasons. We have noticed partially positive influence of added fertilizer Silvamix on the total weight of seedlings (30,48 g , 7,09 g), but only after the first growing season. The highest weight after the second growing season have reached untreated seedlings outplanted in spring (53,84g resp. 19,52 g). Root systems of picked up seedlings showed high presence of active mycorrhizae (in average 90 % and more). We have noticed positive influence of hydrogel Stockosorb on the density of short roots together in case of both types of planting material, but only after the first growing season.