Influence of the mineral rock alginite on survival rate and re-growth of selected tree species on agricultural land

Abstract

The objective of this work is to evaluate the effect of alginite on the growth parameters of seedlings of Douglas-fir, Scots pine and line mixture of pedunculate oak, red oak and Norway maple (broadleaves) on former agricultural land with an unfavourable hydrophysical regime. The research plot consists of 36 sub-plots, each sub-plot has a size of 400 m2. The following doses of alginite were applied: control (variant A without alginite), 0.5 kg of alginite (B) and 1.5 kg of alginite (C) when planting both conifers and mixtures of broadleaves. Number of seedlings on the sub-plots was 400 individuals, only in the case of Douglas-fir the number was 200 individuals. Therefore every combination of tree species and the amount of alginite had 4 replications. The parameters of growth and development of individual trees (height, increment and mortality) show that after 2 years, both doses of alginite had statistically positive effects on height increments.