Сводный каталог книг

[Текст] : сборник научных трудов / Edited by A.Banin and U. Kafkafi. - Oxford ; New York ; Sydney : Israel Society of Soil Science, International Irrigation Information Center, Pergamon Press, 1980. - 448 с. : figures + tables. - Библиогр: p. 424-425%ISBN 0-08-02-5914-6. - 62-00 р.

УДК

631.4

Аннотация: A group of scientists from some 18 countries convened in Jerusalem in June 1976, under the auspices of the International Society of Soil Science and the Israeli Soil Scienece Society, to discuss some of the aspects of the topic. More than 60 papers were presented at the meeting and 40 of them were selected for publication.

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[Text] : научное издание / E. Bjorkman. - Stockholm : Skogshogskolan, 1970. - 48 p. : рис., табл. - (Studia Forestalia Suecica, ISSN 0039-3150 ; № 78). - eng. - Библиогр.: с. 45-47. - 0.50 р.

УДК

06

Аннотация: The influence of SO2 on pine (Pinus silvestris) and spruce (Picea abies) has been studied as well in laboratory experiments with different doses of the gas and under different environmental conditions as in field experiments in some industrial districts and in a built-up area near Stockholm. The purpose of the investigation was to try to find out whether it is possible to improve the conditions of the trees by fertilizing so that the susceptibility to gas damages can be reduced. The fertilizers were N and NPK respectively. An evident tendency to recovery of the trees could be seen after fertilizing of stands that were continuously exposed to SO2. Any recovery of trees in shallow soils which had been fertilized with nitrogen could not be observed. In heavily SO2-damaged stands one can very often find single trees not having been affected at all. Further experiments on genetic resistance in pine populations exposed to SO2 are going on.

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[Text] = Atervinning och vertikal fordelning av 15N- markt handelsgodselkvave i skogsmark : научное издание / H. Nommik, B. Popovic. - Stockholm : Skogshogskolan, 1971. - 20 p. : рис., табл. - (Studia Forestalia Suecica, ISSN 0039-3150 ; № 92). - eng. - Библиогр.: с. 19. - 0.20 р.

УДК

06

Аннотация: Laterally isolated micro-plots were used for studying the recovery and vertical distribution of various sources of 15N-labelled fertilizer nitrogen in the soil beneath a 90 years' old stand of Scots pine. The fate of the added nitrogen was followed by sampling and analysing the field layer vegetation, litter and soil after different time intervals during the growing season 1968 (4 times) and also in spring 1969 (once). Of the calcium nitrate, ammonium sulphate and urea-N added, the amounts recovered at the end of the experiment were 23, 63 and 76 per cent, respectively. Less than ten per cent of the recovered N was in inorganic form. Urea-N showed the lowest mobility of the fertilizers applied, and tended to accumulate in the litter and humus layers.


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Popovic, B.
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[Text] : научное издание / E. Bjorkman, G. Lundeberg. - Stockholm : Skogshogskolan, 1971. - 16 p. : рис., табл. - (Studia Forestalia Suecica, ISSN 0039-3150 ; № 94). - eng. - Библиогр.: с. 16. - 0.60 р.

УДК

06

Аннотация: The phenomenon known as root competition in lichen pine forests has been studied by means of applying ammonium sulphate and potassium phosphate labelled with N15 an P32 respectively to a plot with a seed tree in the centre. Under the tree there was a typical competition zone. Both Calluna vulgaris and Vaccinium vitis idaea proved to be at least as efficient absorbers of nutrients as the pine plants in the natural regeneration under the seed tree. In the vegetation immediately outside the fertilized area only traces of the added nutrients could be found


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Lundeberg, G.
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[Text] = Inverkan av forband och godsling pa utvecklingen av tallympar av fyra olika kloner : научное издание / H.H. Hattemer, E. Andersson, C.O. Tamm. - Stockholm : Skogshogskolan, 1977. - 31 p. : рис., табл. - (Studia Forestalia Suecica, ISSN 0039-3150 ; № 141). - eng. - Библиогр.: с. 31. - ISBN 91-38-03734-3 : 1.20 р.

УДК

06

Аннотация: An experiment was made with grafts of four different clones of Scots pine planted in 1963 in poor sandy soil, with two different spacings and with and without an annual supply of fertilizers from 1964 onwards. The nutrient status of the pines was followed by foliar analysis of needles sampled every autumn. Measurements of a great number of traits were made in 1967 and 1969 and subsequent statistical anlyses showed that both clones and treatment had significant effects on tree properties. Fertilizer strongly affected many properties, such as diameter, branch length, and diameter, cone setting and needle length.


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Andersson, E.; Tamm, C.O.
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[Text] : научное издание / L. Lundin, B. Bergquist. - Uppsala : The Swedish University of Agricultural Sciences, College of Forestry, 1985. - 18 p. : рис., табл. - (Studia Forestalia Suecica, ISSN 0039-3150 ; № 171). - eng. - Библиогр.: с. 17-18. - ISBN 91-576-2399-6 : 0.50 р.

УДК

06

Аннотация: In peatland forestry, fertilization is often needed to reach a good yield. Phosphorus and potassium are mainly used, but on nutrient poor fens and bogs nitrogen also has to be added. These fertilizers affect the environment and thereby influence the runoff waters.The aim of this investigation were to determine the concentrations of fertilizer compounds in runoff water downstream from the fertilized mires and to calculate the losses of applied fertilizers. Consequences on pH and biota, primarily fish, from increased concentrations of fertlizers in the runoff waters were to be investigated


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Bergquist, B.
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[Text] = Apatite and phlogopite as phosphorus and potassium fertilizers in peatland pine forests : научное издание / S. Kaunisto, M. Moilanen, J. Issakainen. - Helsinki : Metsantutkimuslaitos, 1993. - 30 с. : рис., табл. - (Folia Forestalia ; № 810). - fin. - Библиогр.: с. 20. - ISSN 0015-5543. - ISBN 951-40-1309-3 : 800.00 р.

УДК

06

Аннотация: Tree nutrition and growth were studied while using apatite and rock phosphate as phosphorus, and phlogopite and potassium chloride as potassium sources for pine on peatlands. Different fertilizer materials were compared in the following combinations: rock phosphate+potassium chloride, apatite+phlogopite and rock phosphate+phlogopite. The study involved nine different experiments totalling 116 plots. Most of the sites were deficient in phosphorus and potassium. Peat nitrogen content ranged from low (0.9 %) to fairly high (2.6 %) concentrations. Apatite was a satisfactory phosphorus source for trees, but the effects on both needle phosphorus concentrations and tree growth were slower than with rock phosphate. The dealy of growth was 3-8 years. Phlogopite increased the peat total potassium contents slightly more than potassium chloride. Phlogopite raised needle potassium concentrations during the first 2-6 years after fertilization less than potassium chloride.


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Moilanen, M.; Issakainen, J.
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