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634.9
B 83

    Development in Podocarpus Nivalis in relation to other Podocarps. II. Embryogeny in Eupodocarpus
[Текст] / P. Boyle, J. Doyle. - Dublin : Royal Dublin Society, 1954. - 289-312 с. : plates. - (The Scientific Proceedings of the Royal Dublin Society ; v0l. 26, No 17). - Библиогр: p. 310-311. - 4-00 р.
УДК

Кл.слова (ненормированные):
Podocarpus Nivalis%embryogeny%eupodocarps

Аннотация: ?evelopment of the gametophytes of Podocarpus nivalis up to fertilization has been described in a recent paper (Boyle and Doyle, 1953) and comparison made with corresponding phases in other podocarps. This paper follows the embryogeny, including polyembryony, up to the organization of the multicellular clumps destined to form the embryo proper. Comparison is also made with other eupodocarps.


Доп.точки доступа:
Doyle, J.
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634.9T
K 81

    Wachstum und Behandlung der Douglasie im pazifischen Nordwesten von Amerika
[Текст] : монография / H. Kramer ; Universitat Gottingen. - Frankfurt am Main : J.D. Sauerlander's Verlag, 1983. - 114 с. : Abb. + Tab. - (Schriften aus der Forstlichen Fakultat der Universitat Gottingen und der Niedersachsischen Forstlichen Versuchsanstalt / Universitat Gottingen, ISSN 0344 5666 ; 75). - Библиогр: S. 106-114%ISBN 3-7939-5075-1. - 4-00 р.
УДК

Кл.слова (ненормированные):
Bestande%Volumenleistung%Dungung

Аннотация: This book deals with different methods of stand establishment. Most common today is the clear cutting system and the planting of 1000 to 1600 2- to 3-year-old bare-rooted Douglas fir per ha. Fertilization and thinning must be coordinated. Seen from the economic point of view it appears advisable to fertilize at a later stand age, particularly in pruned stands.

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631.4
A 75

    Fertilizer distribution and sampling techniques in the aerial fertilization of forests
[Текст] / K.A. Armson. - Toronto : University of Toronto, Faculty of Forestry, 1972. - 27 с. : figures + tables. - (Technical Report ; 11). - Библиогр: p. 25-26. - 0-60 р.
УДК

Кл.слова (ненормированные):
methods%results%growth plot establishment%monitoring

Аннотация: A study was made of the actual rates and distribution patterns of aerially applied urea fetilizer using norminal rates of 50 and 100 lb./ac. nitrogen. It was concluded that: 1. The variation in distribution at the 50 lb./ac. N rate was great enough to render such application unsuitable. 2. The amount of fertilizer monitored falling through the tree canopy (jack pine, Pinus banksiana Lamb.) was similar to that monitored in open strips. 3. At nominal rates of 100 lb./ac. N, monitoring catchers of 1 square foot area were as suitable as those of 2 square feet area. 4. The estimated numbers of monitoring catchers needed to measure urea fertilizer at 100 lb./ac. N rate was determined for various assumed levels of accuracy. 5. It was suggested that narrow rectangular monitoring plots using 10 catchers each be used to determine fertilizer distribution and tree growth plot locations. 6. Growth responses to fertilizer treatments are more realistic when related to both a response curve and the area distribution of fertilizer. A system of monitoring catchers and plots is recommended which will enable this to be accomplished. 7. The use of cacodylic acid to kill trees in lines, so that the dead red brown foliage would provide marker lines for the aircraft feasible. It should be noted that although jack pine (Pinus banksiana Lamb.) and balsam fir (Abies balsamea (L.) Mill.) retain their dead foliage for a year or more, the foliage of spruces Picea falls after the tree's death.

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631.4
G 96

    Uber forstliche Dungungsversuche mit spezieller Zielsetzung fur den Waldbau des nordwestdeutschen Flachlandes
[Текст] : монография / H.A. Gussone ; Universitat Gottingen. - Frankfurt am Main : J.D. Sauerlander's Verlag, 1974. - 127 с. : Abb. + Tab. - (Schriftenreihe der Forstlichen Fakultat der Universitat Gottingen und Mitteilungen der Niedersachsischen Forstlichen Versuchsanstalt / Universitat Gottingen ; 46). - Библиогр: S. 121-127%ISBN 3-7939-0300-1. - 5-20 р.
УДК

Кл.слова (ненормированные):
Mischbestande%Sonderformen%Klimaeiflusse%Samenproduktion

Аннотация: The book deals with the important role of fertilization in the forest

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06
P90

    Prace Instytutu Badawczego Lesnictwa Seria A.
[Текст] : сборник научных трудов. № 878-883. - Warsawa : Instytut badawczy lesnictwa, 1999. - 106 с. : рис., табл. - pol. - Библиогр. в конце ст. - 27.00 р.
УДК

Кл.слова (ненормированные):
soil insecticides -- insect population -- mineral fertilization -- growth

Аннотация: The book deals with the impact of systematic soil insecticides, insect populations, lipid content, acidic number of fats, optimal moisture, influence of mineral fertilization, intensive growing, contents of proteins a.o.

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06
S92

    Distribution and balance of N15 labelled fertilizer nitrogen applied to young pine trees (Pinus sivestris L.)
[Text] = Fordelning och atervining av N15-markt kvave vid golsling i tallungskog : научное издание / E. Bjorkman, G. Lundeberg, H. Nommik. - Stockholm : Skoghogskolan, 1967. - 23 p. : рис., табл. - (Studia Forestalia Suecica, ISSN 0039-3150 ; № 48). - eng. - Библиогр.: с. 22-23. - 1.04 р.
УДК

Кл.слова (ненормированные):
fertilization -- nitrogen budget -- forest stands

Аннотация: The paper deals with material and method (Descriotion of the experimental area, analytical methods); results (Distribution and recovery of added N in the soil prifile), distribution and recovery of added N in the vegetation; discussions and conclusions


Доп.точки доступа:
Lundeberg, G.; Nommik, H.
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06
S92

    The effect of fertilization on sulphur dioxide damage to conifers in industrial and built-up areas
[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

Кл.слова (ненормированные):
gas -- environmental conditions -- damage -- resistance

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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06
S92

    Mycorrhiza and tree nutrition in poor forest soils
[Text] = Mykorrhiza och naringsupptagning hos skogstrad i mager skogsjord : научное издание / E. Bjorkman. - Stockholm : Skogshogskolan, 1970. - 24 p. : рис., табл. - (Studia Forestalia Suecica, ISSN 0039-3150 ; № 83). - eng. - Библиогр.: с. 22-23. - 0.25 р.
УДК

Кл.слова (ненормированные):
fertilizing -- organic humus -- forest soils -- litter

Аннотация: In the present paper it is shown how Boletus subtomentosus, that normally is a mycorrhiza forming fungus can stimulate the development of pine plants. A physiological strain of this fungus is used which has the ability to decompose litter. The typical mycorrhiza fungus also stimulated the plant growth to a certain extent. However, the stimulating effect ceased when strong fertilization was used or when the light intensity was reduced. Constant illumination resulted in the plants developing well and with good mycorrhiza formation. When the period of illumination was reduced to 16 hours a day the plants developed less vigorously and the mycorrhiza formation was reduced.

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06
S92

    Plant condition and plant growth: Planting experiments with spruce (Picea abies (L.) Karst.) on Calluna heath land
[Text] = Plantkondition och tillvaxt : Planteringsforsok med gran pa ljunghedar : научное издание / E. Bjorkman. - Stockholm : Skogshogskolan, 1970. - 36 p. : рис., табл. - (Studia Forestalia Suecica, ISSN 0039-3150 ; № 88). - eng. - Библиогр.: с. 33-34. - 0.36 р.
УДК

Кл.слова (ненормированные):
methods -- fertilizing -- development -- mycorrhiza

Аннотация: A study has been made of the effects of different methods of fertilizing spruce plants (Picea abies (L.) Karst.) in the nursery before planting them on Calluna heath land in S.W. Sweden. It was found that the use of superphosphate led to strongly stimulated development of the plants after planting. The same was also the case after fertilizing with NPK, while the use of only a similar amount of nitrogen or potassium as is contained in NPK did not have a positive effect. The growth of spruce was often further promoted if a dose of lime (5,000 kg/ha) was added in the nursery. Fertilization after planting was effective only if carried out after the plants had overcome the stunt period of juvenile development.

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06
S92

    The effect of inorganic nutrients on water economy and hardiness of conifers. I. The effect of varying potassium, calcium, and magnesium levels on water content, transpiration rate, and the initial phase of development of frost hardiness of Pinus silvestris L. seedlings
[Text] = Samband mellan mineralamnesinnehall, vattenhushallning och hardighet hos barrtrad. I. Effekter av varierande kalium- och magnesium- nivaer pa vatteninnehall, transpirationshastighet och frosthardighetens initialfas hos tallplantor : научное издание / L. Christersson . - Stockholm : Skogshogskolan, 1973. - 26 p. : рис., табл. - (Studia Forestalia Suecica, ISSN 0039-3150 ; № 103). - eng. - Библиогр.: с. 25-26. - ISBN 91-38-01559-5 : 0.60 р.
УДК

Кл.слова (ненормированные):
transpiration rates -- hardiness -- water content

Аннотация: The aim of the presnt work has been to find out whether or not it is possible to influence the water ceonomy and the development of frost hardiness of pine seedlings by fertilization with varying amounts of potassium, calcium, and magnesium and whether this can be done while maintaining a maximum or almost maximum growth rate. Simple and rapid methods have been used to allow rapid testing of the three ions in concentrations in shoots and in roots that are associated with rapid growth. There were no experiments with slow-growing seedlings suffering from severe deficiency

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06
S92

    Seed development after self-pollination and cross-pollination of Scots pine, Pinus sylvestris L.
[Text] = Froutveckling efter sjalvpollinering och korspollinering av tall, Pinus silvestris L. : научное издание / C.P. Forshell. - Stockholm : Skogshogskolan, 1974. - 37 p. : рис., табл. - (Studia Forestalia Suecica, ISSN 0039-3150 ; № 118). - eng. - Библиогр.: с. 36-37. - ISBN 91-38-01972-8 : 0.50 р.
УДК

Кл.слова (ненормированные):
embryos -- endosperm

Аннотация: The development of pollen tubes and ovules and the formtion of embryos and endosperm after different types of pollination: self-pollination, cross-pollination and wind-pollination were studied in ten clones of Pinus silvestris. Pollination and fertilization took place in all types of pollination. At a certain stage of development, however, embryos in some seeds began to degenerate. This degeneration was followed by a breaking down of the endosperm and resulted in empty seeds. The percentage of degenerated seeds was highest after self-pollination, considerably lower after wind-pollination. The results indicate that inviable zygotes, homozygous for lethal or sub-lethal genes, are formed after self-pollination and explain the high percentage of empty seeds usually found after this type of pollination. Wind-pollination may to some extent involve self-pollination. No clone was found to be quite self-sterile, but the differences in self-fertility between the clones were rather great.

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06
S92

    Intensive fertilization with nitrogen as stressing factor in a spruce ecosystem. I. Soil effects
[Text] = Intensiv kvavegodsling som stressfaktor i ett granskogsekosystem. I. Markreaktioner : научное издание / C.O. Tamm, B. Popovic. - Stockholm : Skogshogskolan, 1974. - 31 p. : рис., табл. - (Studia Forestalia Suecica, ISSN 0039-3150 ; № 121). - eng. - Библиогр.: с. 30. - ISBN 91-38-02117-X : 0.50 р.
УДК

Кл.слова (ненормированные):
nitrogen mineralization -- leaching -- nitrate

Аннотация: Soil studies were carried out before and after clear felling of an intensively fertilized young spruce plantation on old arable land. Particular attention was devoted to nitrogen mineralisation, nitrification, and leaching. Notable amounts of nitrate in the soil occurred before felling only on plots receiving high doses of ammonium nitrate, after clear felling also on some plots with no or low nitrogen supply. Marked quantities of nitrate nitrogen were observed in the deeper soil layers during fertilizer experiment in plots with high fertilizer additions. The soil reaction indicated an acidification as a result of fertilizer treatment. In a pot experiment with soil from the field experiment the nitrate leaching by percolation was studied.


Доп.точки доступа:
Popovic, B.
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06
S92

    Effects of nitrogen fertilization on the abundance of enchytraeids and microarthropods in Scots pine forests
[Text] = Effekter av kvavegodsling pa abundansen av enchytraeider och mikroartropoder i tallskog : научное издание / U. Lohm, H. Lundkvist, T. Persson, A. Wiren. - Stockholm : Skogshogskolan, 1977. - 23 p. : рис., табл. - (Studia Forestalia Suecica, ISSN 0039-3150 ; № 140). - eng. - Библиогр.: с. 22-23. - ISBN 91-38-03733-5 : 1.00 р.
УДК

Кл.слова (ненормированные):
experimental sites -- forestry -- methods

Аннотация: The aim of this study was to assess the effects on the abundance of enchytraeids and microarthropods from: 1) different dosages of ammonium nitrate; 2) ammonium nitrate at the most commonly used dose in practical forestry at different times after fertilization; and 3) urea in the dose used in practical forestry.


Доп.точки доступа:
Lohm, U.; Lundkvist, H.; Persson, T.; Wiren, A.
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06
S92

    Effects of spacing and fertilization on four grafted clones of Scots pine
[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

Кл.слова (ненормированные):
different spacing -- measurements -- tree properties

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.


Доп.точки доступа:
Andersson, E.; Tamm, C.O.
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06
S92

    Nitrogen recovery in soil and needle biomass after fertilization of a Scots pine stand, and growth responses obtained
[Text] = Atervinning av godselkvave i mark och barrbiomassa hos ett tallbestand, samt tillvaxtreaktioner : научное издание / H. Nommik, G. Moller. - Uppsala : The Swedish University of Agricultural Sciences, College of Forestry, 1981. - 37 p. : рис., табл. - (Studia Forestalia Suecica, ISSN 0039-3150 ; № 159). - eng. - Библиогр.: с. 37. - ISBN 91-38-06440-5 : 1.20 р.
УДК

Кл.слова (ненормированные):
methods -- control -- accumulation

Аннотация: The distribution of fertilizer nitrogen in soil and needle biomass of an 120-year-old stand of Scots pine was studied over a period of six years. The nitrogen was applied as ammonium nitrate or urea and at rates of 150, 300 and 600 kg N per hectare. The soil investigations showed that at the lowest nitrogen application rate, 21% of the ammonium nitrate and 49% of the urea nitrogen were immobilized in the soil in nonexchangeable form. For the corresponding treatments the losses by leaching were estimated to 30-40% and 0-10%, respectively.The accumulation of fertilizer nitrogen in the needle biomass culminated during the third growing season. Relative to control, the total nitrogen accumulation for the lowest ammonium nitrate and urea application rates then amounted to 174 and 134% respectively. As regards volume growth, the ammonium nitrate was greatky superior to urea at the two lowest nitrogen application rates. The dose of 600 kg N per hectare provids to be over-optimal as far as the ammonium nitrate source of nitrogen was concerned.


Доп.точки доступа:
Moller, G.
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06
S92

    Peatland fertilization: Short-term chemical effects on runoff water
[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

Кл.слова (ненормированные):
fertilization -- peatland -- runoff -- water chemistry

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


Доп.точки доступа:
Bergquist, B.
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06
S92

    Crown development of Scots pine trees following thinning and nitrogen fertilization
[Text] : научное издание / E. Valinger. - Uppsala : The Swedish University of Agricultural Sciences, College of Forestry, 1993. - 12 p. : рис., табл. - (Studia Forestalia Suecica, ISSN 0039-3150 ; № 188). - eng. - Библиогр.: с. 11-12. - ISBN 91-576-4694-5 : 5.00 р.
УДК

Кл.слова (ненормированные):
biomass -- branches -- cones -- growth distribution -- urea fertilizer

Аннотация: This paper describes changes in crown development, including: numbers of branches, shoot axes and buds produced, branch elongation and main axes, production of shoot axes, needles, buds, cones, and dead material on live branches, and distribution of growth to the upper crown

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06
F54

    Effect of fertilization on dry mass accumulation and nutrient cycling in Scots pine on an ombrotrophic bog
[Text] : научное издание / L. Finer. - Helsinki : The Society of Forestry in Finland-The Finnish Forest Research Institute, 1991. - 42 p. : рис., табл. - (Acta Forestalia Fennica ; vol. 223). - eng. - Библиогр.: 29-31. - ISSN 0001-5636. - ISBN 951-40-1179-1 : 2.00 р.
УДК

Кл.слова (ненормированные):
accumulation -- biomass -- litterfall -- nutrient -- peatland -- uptake

Аннотация: The fertilized stands accumulated more N,P,K and B than the unfertilized ones during the three-year study period. The increased accumulation corresponded to 35 % (52 kg/ha) of the N applied on the NPK fertilized plots, 10% (6 kg/ha) of the P, 25% (25 kg/ha) of the K and 10% (0.2 kg/ha) of the B on the PK and NPK fertilized plots. The increased amount of B released in litterfall after fertilization was equivalent to 4% of the applied B. Fertilization inhibited the uptake of Mn and Ca.

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06
F54

    Metsanlannoituksen vaikutus juurikaavan esiintymiseen
[Text] : kirjallisuukatsaus = The effect of fertilization on the occurrence of Heterobasidion annosum (Fr.) Bref. : A literature review / K. Jokinen. - Helsinki : Metsantutkimuslaitos, 1983. - 22 с. : рис., табл. - (Folia Forestalia ; № 573). - fin. - Библиогр.: с.20-22. - ISSN 0015-5543. - ISBN 951-40-0641-0 : Б. ц.
УДК

Кл.слова (ненормированные):
forest fertilization -- results of studies -- resistance

Аннотация: The report is mainly based on the results of studies carried out outside Finland. The effect of the nutrient status of the tree on resistance to pathogens, and the effect of fertilization and soil fertility on the microorganisms in the soil, are first treated in general in the report.

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06
F54

    Lannoituksen vaikutus koulittujen rauduskoivun taimien ravinnepitoisuuteen, kasvuun ja versolaikkuisuuteen
[Text] = Effect of fertilization on the nutrient concentration, growth and incidence of stem spotting in bare-rooted birch transplants : научное издание / R. Rikala, R.-L. Petaisto. - Helsinki : Metsantutkimuslaitos, 1986. - 16 с. : рис., табл. - (Folia Forestalia ; № 642). - fin. - Библиогр.: с.13-15. - ISSN 0015-5543. - ISBN 951-40-0723-9 : Б. ц.
УДК

Кл.слова (ненормированные):
effect of fertilization -- stem spotting -- nursery -- transplants

Аннотация: The effect of macronutrient (N, P, K) fertilization on the nutrient concentration, morphological properties and incidence of stem spotting in two year old Betula pendula Roth transplans growing in the nursery, and their success following planting out in the field, was investigated in the study.


Доп.точки доступа:
Petaisto, R.-L.
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