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    Wyświetlanie 1-5 z 5
    Tytuł:
    Wpływ rekultywacji na wyniki zalesienia zdegradowanych gleb w Nadleśnictwie Chocianów
    Effect of soil reclamation on afforestation of degraded areas in the Chocianow Forest District
    Autorzy:
    Bacia, J.
    Barzdajn, W.
    Powiązania:
    https://bibliotekanauki.pl/articles/1016460.pdf
    Data publikacji:
    2007
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    zalesianie
    Nadlesnictwo Chocianow
    gleby zdegradowane
    rekultywacja lesna
    lesnictwo
    soil reclamation
    degraded soils
    forest fertilization
    poland
    Opis:
    The aim of the experiment was to compare the rehabilitating effect of three factors that may improve the degraded and very poor soils formed from loose sands: dolomite liming, use of a multi−component fertilizer with delayed action (Silvamix W) and temporary introduction of an admixture Alnus incana into the Pinus sylvestris plantation. The results of the factorial experiment after 9 years indicate that the soils on which the experiment was established cannot be afforested without prior rehabilitation treatments. The activity of dolomite was most effective while of Silvamix − weaker. Alder survived in the plantation composition only when used in combination with dolomite fertilization, then its rehabilitating effect was apparent. Rehabilitation relying on the use of dolomite at a rate of 2 t/ha in combination with a 50% admixture of alder in the pine plantation is recommended to be used in practice.
    Źródło:
    Sylwan; 2007, 151, 05; 44-51
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Mycorrhizal status of Pinus sylvestris L. nursery stock in Poland as influenced by nitrogen fertilization
    Autorzy:
    Rudawska, M.
    Leski, T.
    Gornowicz, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/41277.pdf
    Data publikacji:
    2001
    Wydawca:
    Polska Akademia Nauk. Instytut Dendrologii PAN
    Tematy:
    forest ecosystem
    Polska
    nursery
    Pinus sylvestris
    nitrogen fertilization
    ectomycorrhizal fungi
    fungi
    morphotype
    Opis:
    Indigenous mycorrhizal colonisation of one (1/0) and two (2/0) year old Scots pine (Pinus sylvestris L.) seedlings from forest nurseries situated in the north-west part of Poland was investigated. Seedlings were fertilized after a schedule designed to satisfy their requirements which resulted from soil analysis of each nursery. In autumn needle nitrogen concentration and mycorrhizal status were estimated. As a rule seedlings 1/0 obtained high doses of fertilizers, and their needle nitrogen concentration highly exceeded the recommended optimal level above which mycorrhiza formation is greatly restricted. Highly negative correlation was found between the nitrogen status of foliage and mycorrhizal quantitative and qualitative colonisation estimated in the abundance class of 0-5. When internal nitrogen level was low, several ectomycorrhizal morphotypes were found on roots of tested plants. Excessive nitrogen fertilization decreased root ramification pattern and along with increased pH promoted ectendomycorrhizal symbiosis. Two-year-old seedlings (2/0) were characterised by significantly lower nitrogen concentration in the needles which resulted in much higher ectomycorrhizal colonisation. Ectendomycorrhizal symbiosis in the case of 2/0 seedlings was scarce. The results indicate that natural colonisation in nurseries is dependent on the soil management practices, especially nitrogen fertilization. Optimalization of nitrogen fertilization may intensify ectomycorrhizal colonisation of the nursery stock from indigenous fungal species and improve the growth of Scots pine seedlings in bare-root nurseries and plantations.
    Źródło:
    Dendrobiology; 2001, 46
    1641-1307
    Pojawia się w:
    Dendrobiology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Intensywna gospodarka leśna na Południu Stanów Zjednoczonych Ameryki Północnej
    Intensive Forest Management in the US South
    Autorzy:
    Zasada, M.
    Siry, J.P.
    Cieszewski, C.J.
    Powiązania:
    https://bibliotekanauki.pl/articles/1023559.pdf
    Data publikacji:
    2004
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    herbicydy
    Stany Zjednoczone
    gospodarka lesna
    produkcyjnosc lasu
    lasy
    ochrona lasu
    nawozenie
    lesnictwo
    uprawa plantacyjna
    drzewa lesne
    intensive forest management
    fertilization
    herbicide
    thinning
    Opis:
    Forest management profitability can be raised by increasing stand productivity, which comprises improving wood yields and quality. The United States of America provides a good example of intensive management techniques applied on large scale to substantially increase forest productivity. Experiences of the U.S. South's forestry sector provide evidence that research−based intensive growth technologies are the key factor in ensuring adequate wood supplies and in effectively promoting sustainable management of the region's forest resource. Management treatments such as applications of fertilizers and herbicides have yielded lard productivity increases to date. Genetic improvement also has yielded large productivity increases along with improving stem straightness, wood properties, and disease resistance. Modern timber growth technologies already make possible doubling or even tripling current pine growth rates, while research progress indicates that current growth technologies can be improved even further.
    Źródło:
    Sylwan; 2004, 148, 02; 61-72
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wpływ podcinania korzeni i nawożenia na cechy biometryczne dwuletnich sadzonek buka zwyczajnego (Fagus sylvatica L.)
    Effects of root pruning and fertilization on biometric traits of 2-year-old seedlings of European beech (Fagus sylvatica L.)
    Autorzy:
    Kasprzyk, W.
    Jastrzębowski, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/1294969.pdf
    Data publikacji:
    2016
    Wydawca:
    Instytut Badawczy Leśnictwa
    Tematy:
    lesnictwo
    szkolkarstwo lesne
    drzewa lesne
    buk zwyczajny
    Fagus sylvatica
    sadzonki dwuletnie
    podcinanie korzeni
    nawozenie
    cechy biometryczne
    root pruning
    fertilization
    European beech
    forest nursery
    Opis:
    The aim of this study was to examine the effects of pruning the root system and different doses of nitrogen fertilization on the height and root collar diameter of 2-year-old beech seedlings (Fagus sylvatica L.). This research was conducted in the forest nursery Muchów (Jawor Forest District, regional directorate of State Forests in Wrocław) and two different pruning treatments (no pruning and at 12 cm depth) and nitrogen fertilization doses (25 and 50 kg×ha-1) were applied. Results from an ANOVA showed statistically significant differences between the two pruning treatments (p=0.000) as well as for the interaction of both treatment factors (p=0.019). Root collar diameter correlated with seedling height, both of which were significantly different for the two pruning treatments (p=0.000). No statistically significant impact by the nitrogen fertilization doses on seedling height could be observed (p=0.125). To conclude, we found that it is reasonable to reduce the doses of nitrogen fertilization to half the recommended amount, 25 kg×ha-1, if the root system is not pruned during the second growth year. Seedlings that do receive pruning should be fertilized using the recommended nitrogen doses.
    Źródło:
    Leśne Prace Badawcze; 2016, 77, 3
    1732-9442
    2082-8926
    Pojawia się w:
    Leśne Prace Badawcze
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Preliminary results of studies on the effects of organic fertilization and mulching on the growth of one-year old European larch (Larix decidua Mill.) seedlings and occurrence of soil mites under micro-sprinkler irrigation in two sylvan-natural regions of Poland
    Autorzy:
    Rolbiecki, R.
    Rolbiecki, S.
    Klimek, A.
    Podsiadlo, C.
    Powiązania:
    https://bibliotekanauki.pl/articles/60215.pdf
    Data publikacji:
    2008
    Wydawca:
    Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
    Tematy:
    organic fertilization
    mulching
    plant growth
    one-year-old plant
    European larch
    Larix decidua
    seedling
    occurrence
    soil mite
    mite
    micro-sprinkler irrigation
    Polska
    forest region
    sewage sludge
    bark
    sawdust
    Acari
    Oribatida
    Opis:
    The aim of the study was to determine the influence of organic fertilization and mulching on the seedling vigour of European larch (Larix decidua Mill.) and occurrence of soil mites (Acari) in forest- and post-arable soils. Two different nursery experiments were carried out in the vegetation period of the year 2005 on light soils at two sylvan-natural regions of Poland. The first trial was conducted at Białe Błota near Bydgoszcz – on a brown podzolic soil. The second experiment – at Lipnik near Stargard Szczeciński – on an acid brown soil. The higher was the rainfall amount during the vegetation period, the lower was the seasonal irrigation rate supplied to European larch seedlings. Because of this the seasonal irrigation water rate applied at Białe Błota was higher than that at Lipnik. European larch seedlings grown on the forest soil were characterized by the increased height and the fresh mass than those cultivated on the post-arable ground. Seedlings grown in the forest soil on treatments mulched with litter were characterized by the increased height and the fresh mass of above-ground parts as compared to those cultivated on control plots (without mulching). Mulching with litter increased the number of mites, especially oribatid mites, as well as their species diversity. It can be recognized as the result of the positive influence of the mulching on the biological properties of the studied soils.
    Źródło:
    Infrastruktura i Ekologia Terenów Wiejskich; 2008, 06
    1732-5587
    Pojawia się w:
    Infrastruktura i Ekologia Terenów Wiejskich
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-5 z 5

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