DIGITALNA ARHIVA ŠUMARSKOG LISTA
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ŠUMARSKI LIST 3-4/1966 str. 45 <-- 45 --> PDF |
LITERATURA 1. G r a č a n i n, M.: Kalcifikacija tala, Poljoprivredni nakladni Zavod, Zagreb 1947. 2. G r ač a n i n, M.: Metodika ekoloških istraživanja tla, Priručnik za tipološko istraživanje vegetacije, Nakladni zavod Hrvatske, Zagreb 1950. 3. Heiberg, S. O. — White, P. D.: Potassium deficiency of reforested pine and spruce stands in Northern New York, Proc. Soil. Sci. Soc. Amer. 15, 1951. 4. H o r v a t, I.: Biljne zajednice Hrvatske, Zagreb 1950. 5. Ingestad , T.: Studies on the nutrition of forest tree seedlings. II. Mineral nutrition of spruce. Physiol. Plant., 12, 1959. 6. Komi eno vić, N.: Koncentracija hraniva u iglicama američkog borovca kao indikator fertilizacije, Zagreb 1965. (rukopis). 7. K r a n j e c, V.: Geološki i litološki sastav područja Marija Gorice, Samobora, Plešivice, Draganića i Vukomeričkih Gorica, Zagreb 196465. (rukopis). 8. M a r t i n o v i ć, J.: Utjecaj tla na uspijevanje borovca (P. strobus L.) u kulturi »Bučice« u Hrvatskom zagorju, Šumarski list br. 5/6 1965. 9. Pelišek , J.: Lisnicke puldoznanstvi, Praha 1964. 10. Savezna privredna komora, Zaključci radnog sastanka (savjetovanja) proširenog stručnog odbora za šumarstvo, Beograd 1965. 11. S a v v i n o v, H. N., prema: Počvenaja semka, Akademia Nauk SSSR Moskva 1959. 12. Stre b el, O.: Mineralstoff ernährung und Wuchsleistung von Fichtenbeständen (Picea Abies) in Bayern. Forstw. Cbl. 79, 17, 1960. 13. Strebel , O.: Nadelanalitische Untersuchungen an Fichten — Altständen sehr guter Wuchsleistung im bayerischen Alpenvorland. Forstw. Cbl. 11/12 1961. 14. Škorić , A.: Pedološka istraživanja, priručnik, Zagreb 1961. 15. T a m m, C. O.: Studies on the forest nutrition. III. The effects of supply of plant nutrients for a forest stand on a poor site. Medd. Skogsforskn. Inst, 46, Nr. 3, 1956. 16. T a m m, C. O.: Studies on forest nutrition. IV. The effects of supply of potassium and phosphorus to a poor stand on drained peat. Meed, Skogsforskn. Inst, 46, Nr. 3, 1956. 17. Weh r mann , J.: Nadelanalytische Untersuchung eines Fichtendüngungsversuches auf Hochmoor. Die Phosphorsäure 23, 4, 1963. 18. Z ö t 11, H : Ein Vergleich zwischen Ammoniakgas und Stickstoffsalz — Düngung in Kiefern und Fichtenbeständen Bayerns. Forstw. Obl. 77, 1/2, 1958. EFFECT OF SOIL FERTILITY ON THE GROWTH OF NORWAY SPRUCE IN THE CULTURE »VRELO« AT JASTREBARSKO Summary Investigated was an (8 + 3)-year-old planting of Norway Spruce in the grounds of the Yugoslav Institute for Conifers at Jastrebarsko near Zagreb. The culture was established on a brown illimerized soil on Triassic layers of calcareous dolomite, and it is situated within the area of the forest association Fagetum croaticum montanum Horv. It lies on a gentle slope of undulated ground, at an altitude of 500—550 m. with a south-facing aspect. About 40 years ago part of the area of culture was used for charcoal burning. In the soil of this part of area to a depth of 60 cm. 12 t./ha. of the total N, 144 kg./ha. of available PaOs and 454 kg./ha. of available K2O (Al-method were established. With this nutrient content in the soil the one-year-old needles of Norway Spruce contained 1.52»/o N, 0.53% P2O.-,, 0.72P/oKüO and 0.7Ö%> CaO. On the basis of these data the authors conclude that the investigated culture is well supplied with the chief nutritive substances. Under the existing circumstances the culture produced 16 t./ha. of absolute dry matter and achieved an average height of 2.8 m. It was found that under most favourable thriving this Norway Spruce culture contains per ha.: 89.5 kg. N, 35.3 kg. P2O5, 47.7 kg. K2O and 122.4 kg. CaO. An analysis of the hitherto achieved development of the culture in question indicates that on the investigated and similar sites Norway Spruce can grow well, and that by applying adequate agrotechnical measures it is possible to considerably influence the augmentation of increment. |