The purpose of the study was to determine the influence of mulching and organic fertilization on growth parameters of two-year old Scots pine seedlings as well as on the occurrence of soil mites (Acari) under conditions of irrigation. Fe-licity of proposed revitalization measures was conducted with the use of the bioin-dication method. In this investigation the indicatory organisms were mites, common and very numerous in forest soils. The experiment was carried out in 2009 at forest nursery Bielawy (Forest Inspectorate Dobrzejewice). The slightly loamy sand was predominant on the studied area. Experiment was design as two-factorial trial (split-plot), replicated four times. The first row factor was organic fertilization used in the two treatments (main plots): without organic fertilization-control, organic fertilization with compost from forest cap - humus applied before sowing of Scots pine seeds (spring 2008). The second row factor was mulching used in the two treatments (subplots): without mulching - control, mulching with fresh cap-humus from habitat of fresh coniferous forest, which was applied after seedling emergence (September 2008). It was stated that the influence of both the two investigated factors (organic fertilization and mulching) on the growth indices of two-year old seedlings was significant. Seedlings cultivated on the ...
The aim of the study was to determine the influence of mulching and or-ganic fertilization on growth parameters of one-year old Scots pine seedlings as well as on the occurrence of soil mites (Acari) under conditions of irrigation. Fe-licity of proposed revitalization measures was conducted with the use of the bio-indication method. In this investigation the indicatory organisms were mites, common and very numerous in forest soils. The experiment was carried out in forest nursery Bielawy (Forest Inspectorate Dobrzejewice). The slightly loamy sand was predominant on the studied area. Experiment was design as two-factorial trial (split-plot), replicated four times. The first row factor was organic fertilization used in the two treatments (main plots): without organic fertilization-control, organic fertilization with compost from forest cap - humus applied before sowing of Scots pine seeds (spring 2008). The second row factor was mulching used in the two treatments (subplots): without mulching - control, mulching with fresh cap-humus from habitat of fresh coniferous forest, which was applied after seedling emergence (September 2008). Influence of both the two investigated factors (organic fertilization and mulching) on the growth indices of seedlings was insignificant. It was observed that seedlings cultivated on the plots fertilized with compost and ...
The influence of fertilization with the compost prepared from forest humus and mulching with the fresh ectohumus on the soil properties, the growth of one-year old Scots pine seedlings as well as on the biological activity of soils in the forest nursery was studied in the work. The biological activity was estimated with the usage of bioindicatory method - mites (Acari), especially saprophage oribatid mites (Oribatida) were used as biological indices. On the base of the study it was stated that the ground surface horizon was characterized by acid reaction. Fertilization with the compost from forest humus increased significantly the height of Scots pine seedlings - plants cultivated on plots fertilized with compost were by 46% higher than those fertilized by mineral fertilizers only. Organic fertilization increased also significantly the fresh mass of the above-ground parts of Scots pine seedlings. Effect of mulching - which was carried out in September - on the investigated parameters was not detected. In the spring - before the measure of mulching - the density of mites on the studied ground was low. Among these arthropods the most numerous were Actinedida which constituted from 91 to 100% of all mites. After the ...
The effect of fertilization with the compost from forest humus and mulching with the fresh ectohumus on the soil properties, the growth of one-year old white birch seedlings as well as on the biological activity of soils in the forest nursery was investigated in the work. The biological activity was estimated with the use of bioindicatory method - mites (Acari), especially saprophage oribatid mites (Ori-batida) were used as biological indices. The pedosphere of studied area in the forest nursery had acid reaction (pH), and the mulching with the fresh forest ectohumus decreased additionally this value. On the basis of analysis of available P and K, it was found that there was small differentiation between plots fertilized with mineral fertilization and those fertilized with the compost and mulched with the fresh ectohumus. Fertilization with the compost significantly increased the height and the fresh mass of the above-ground parts of one-year old white birch seedlings. Influence of mulching - conducted in September - on these parameters was not detected. In the spring sea-son, before the mulching measure, the density of mites was low. After the mulching measure, the number of mites - especially saprophage oribatid mites - was dis-tinctly increased. On ...
