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Wyświetlanie 1-2 z 2
Tytuł:
Wpływ technologii produkcji i pory sadzenia jednolatek sosnowych (Pinus sylvestris L.) na udatność i początkowy wzrost uprawy
Effect of the production technology and planting date of 1-year-old pine [Pinus sylvestris L.] seedlings on the survival and early growth of culture
Autorzy:
Barzdajn, W.
Powiązania:
https://bibliotekanauki.pl/articles/1018449.pdf
Data publikacji:
2006
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
hodowla lasu
sadzonki jednoroczne
sadzonki z zakrytym systemem korzeniowym
lesnictwo
sadzonki z odkrytym systemem korzeniowym
Pinus sylvestris
uprawy lesne
terminy sadzenia
wzrost roslin
uprawy sosnowe
sosna zwyczajna
udatnosc uprawy
drzewa lesne
pinus sylvestris
planting date
root−ball seedlings
bare−root seedlings
Opis:
In the paper the authors compare the growth of plantations established with 1−year−old container−raised small root−ball and bare−rooted pine seedlings. The planting dates were: late summer, early spring, late autumn and spring. The experiment results showed that irrespective of the type of seedlings used the growth of plantations originated from the summer and autumn planting was not inferior to those established in spring. The percentage of root−ball seedlings was higher. After two years they showed better height growth than the bare−root seedlings however the effect depended on planting date. The obtained results proved sufficient to begin experimental planting on a large commercial scale. The establishment of plantations in summer and autumn can make the seedling storage unnecessary and reduce nursery production costs.
Źródło:
Sylwan; 2006, 150, 08; 38-51
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wzrost drzewostanu sosnowego do fazy tyczkowiny w zależności od sposobu założenia uprawy na gruncie zalesianym
Growth of Scots pine stand to the stage of polewood with regard to the method of culture establishment in the afforested farmland
Autorzy:
Barzdajn, W.
Kowalkowski, W.
Szyguła, J.
Powiązania:
https://bibliotekanauki.pl/articles/986691.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
hodowla lasu
grunty porolne
zalesianie
uprawy lesne
zakladanie upraw lesnych
metody sadzenia
drzewostany sosnowe
wzrost drzewostanu
przezywalnosc drzewostanow
scots pine
former farmland
planting methods
Opis:
The aim of the study was to compare the growth of plantations established with manual and mechanical methods using planting material of various age. The experiment was established in 2000, in the Góra Śląska Forest District (W Poland) on a former farmland. One− and two−years−old Scots pine seedlings were used. Applied planting methods included: conventional planting bar, German Huff's dibble, trowel, Junack spade and three types of planting machines. The complete random block design with five replications was adopted. For the requirements of machine operation, unit plots were elongated rectangles with the longer side of 100 m and the shorter side of 4.5 m. Each plot consisted of three trenches. Spacing between seedlings in the trench was selected to ensure 10,000 seedlings/ha density. Measurements were carried out in 2000, 2001, 2002, 2003, 2008 and 2015. In the first five dates all heights were measured and seedling survival rates were established based on the number of measurements. In 2008 and 2015 all diameters at breast height were measured. In 2015 height of sample trees was recorded, while the height of the other trees was calculated according to the Prodan model h=d2/(a+bd+cd2)+1.3. Based on the measured diameters at breast height and established heights, basal area at the breast height and total tree volume were calculated for each plot. Survival rate is the primary parameter in the evaluation of planting methods, as it most effectively differentiates treatments. Stand height showed no significant diversification with regard to the treatments. For mean diameters at breast height the only differences were found between two−year old and one−year old seedlings, irrespective of the planting method. Despite the lack of differences in growth, effects of various planting methods and different planting material remain and as a result of high class timber already found in the stand these effects have become economically important. The decision on the selection of a particular planting material type and planting method has extensive economic consequences, as it affects productivity of grown stands at least at the first thinning operations. Planting machines are good tools in the establishment of forest cultures and the quality of their work exceeds that of manual operations.
Źródło:
Sylwan; 2017, 161, 09; 723-729
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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