DIGITALNA ARHIVA ŠUMARSKOG LISTA
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ŠUMARSKI LIST 7-8/1965 str. 53 <-- 53 --> PDF |
LITERATURA 1. Ani ć M.: Uzgajanje šuma, Ekologija šumskog drveća i šuma, Skripta, Zagreb. 2. Babovi ć D.: Podzolasta zemljišta Kosmeta i mjere njihove popravke zemljišta i biljaka No 1—3, str. 6—105, Beograd, 1960. 3. Filipo v sk i G„ Ćiri ć M.: Zemljišta Jugoslavije, Beograd, 1963. 4. Gračani n M.: Pedologija III dio, Zagreb, 1963. 5. Hei l ma n Paul E., Gesse l S. P.: Nitrogen requirements and the biological cycling of nitrogen in Douglas — fir stands in relationship to the effects of nitrogen fertilization, Plant and Soil No 3, str. 386—402, 1963. 6. Kie p a c D.: Rast i prirast šumskog drveća i sastojina, Nakladni zavod »Znanje «, Zagreb, 1963. 7. Kovačevi ć P.: Tla kotara Bjelovar, Zavod za agroekologiju, Zagreb, 1956. (rukopis). 8. KramerP. J, Kozlowsky T.T.: Physiology of trees Mc Graw — Hill Book Co., New York, 1959. 9. Martinovi ć J.: Pedološka karakterizacija tala nekih kultura četinjača u Hrvatskoj, 1964. (rukopis). 10. Martinovi ć J.: Studija tala i pedološka karta š. g. j . Brod n/Kupi, 1964. (rukopis). 11. Martinovi ć J.: Utjecaj tla na uspijevanje američkog borovca u kulturi Bučice, 1965. (u štampi). 12. Neme c Josef a kolektiv: Technicka priručka lesnicka, strana 248, Stat ni zemedelske nakladatelstvi, Praha, 1964. 13. Popovi ć B.: Primjena dubrenja (fertilizacije) u povećanju proizvodnosti šuma, Savezna privredna komora, 1965. 14. Pogrebnjak : Obš. lesovodstvo, Moskva, 1963. 15. Rubne r K.: Die Pflanzengeographischen Grundlagen des Waldbaues, Neumen Verlag, Radebeul und Berlin, 1960. 16. Sapošniko v S. A.: Biologičeskie osnovi obrabotki podzolistyh počv, Moskva, 1964. 17. Škori ć A.: Pedološka istraživanja (priručnik), Zadružna štampa, Zagreb, 1961. 18. Škori ć A., Martinovi ć J.: Program rada pedološke laboratorije Zavoda za četinjače Jastrebarsko, Zagreb, 1962. (rukopis). 19. Škorić A., R a c z Z., Modri ć A., Kovačević P.: Detaljno proučavanje glavnih tipova zemljišta Jugoslavije, izvještaj za 1962. godinu za područje NRH, Zagreb, 1963. (rukopis). 20. Wild e S. A. Forest Soil, Ronal Press Co., New York, 1958. UTILIZATION OF ILLIMERIZED SOILS FOR THE CULTIVATION OF CONIFERS IN THE DISTRICT OF BJELOVAR Summary Through investigations of the low hilly terrains of Northern Croatia along the Bilogora—Moslavačka gora Mountain Range the presence of illimerized soils on the loess and »fine sands« of diluvial age was established. The natural fertility of these soils is dealt with from the standpoint of their suitability for intensive cultivation of fast-growth conifers. It was established that these soils possess a high level of natural fertility. They are well supplied with soluble phosphorus. A comparison of the contens of humus and nitrogen under a 100-year-old Oak stand with the contents of humus and nitrogen on a clear and tilled ground indicates that the mineralization of humus and the diminnution of nitrogen proceed very quickly in this soil under conditions of clear cutting and mechanical tillage of the soil. The suggestions made for the utilization of these soils for the intensive production of conifers aim at the clear cutting of the existing degraded forests and the mechanical tillage of the soil being restricted, with the purpose to preserve the fertility of these soils. In order to protect the soil on sloping terrains against run-off and water erosion, a denser planting of quality seedlings is planned. |