The aim of the study was to estimate the variability of biometric parameters in the second year of cultivation of Scots pine on the post arable ground. Planting were carried out on the basis of post arable ground located in the Faculty Agro and Hydrometeorology Observatory of the Wrocław University of Environmental and Life Sciences. Scots pine plants in the second year of cultivation increased in height from 43.1 cm to 53.39 cm, 10,29 cm, i.e. 24 % ie. The growth rate of pine was the highest in the first part of the growing season (until June 14), when the plant height increased by 7.69 cm, accounting for about 75% of the total, the annual increment in height. The second biometric parameters studied - the diameter of the trunk - increased in the second year of growing pine from 13.16 mm to 23.36 mm (by 10. 2 mm, ie. about 77 %). ...
This study examined the effect of fertilisation with compost prepared from hygienised sludge with an addition of pine-tree bark and mulching with fresh forest ectohumus on selected growth parameters for two- and three-year-old Scots pine trees and on the incidence of mites (Acari) in the soil. The experiment was carried out in 2009-2010 in the Białe Błota forest nursery (Bydgoszcz Forest District) on proper rusty soil. The entire area of the experiment was irrigated with a stationary sprinkler.Organic fertilisation with compost prepared from hygienised sludge with an addition of pine-tree bark resulted in a significant increase in the plant height and the diameter of the root neck in two-year-old pine trees. The effect of mulching on these parameters was not significant. The synergistic effect of the factors on the plant height and the diameter of the root neck was not significant. Organic fertilisation significantly increased the height of 3-year-old pine trees, whereas it did not have a significant effect on the root neck diameter. Mulching increased the plant height significantly, but no statistical effect on the diameter of the root neck was demonstrated. Although no significant interaction of either experimental factors in their effect on the plant height and the ...
This paper presents the edge effect of a very low-volume road on the belt of roadside vegetation in the "Puszcza Notecka", Poland - one of the largest compact forest complexes in Europe. The observations were carried out in the vicinity of pine stands in the fresh coniferous forest and fresh mixed coniferous forest sites. Twelve rectangular experimental sites 30 and 50 meters wide at a distance of 0 to 10 meters from the edge surfaces were established. 75 species characteristic for the 13 phytosociological classes and 20 species associated devoided of the diagnostic value were recognized in the roadside area. Native species dominated, where the most numerous species belonged to meadow communities (Molinio-Arrhenatheretea) and ruderal (Artemisietea vulgaris). Despite the significant participation of synanthropic plants, there was no invasion of alien species. ...
