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Author: Robert Peter Brockley Publisher: ISBN: Category : Nature Languages : en Pages : 40
Book Description
Summarizes results obtained from 33 lodgepole pine fertilization research installations established at the Kalamalka Forestry Centre in Vernon, British Columbia. Most of the research was conducted in 15- to 35-year-old thinned, fire-origin stands in the montane spruce and sub-boreal spruce biogeoclimatic zones. Results are discussed with regard to such research topics as: pre- and post-fertilization foliar nutrient status; response to nitrogen additions; effects of nitrogen application rate; effects of post-thinning stand density and site index; effects of timing of fertilization and thinning; small-mammal damage; and effects of snow accumulation.
Author: Robert Peter Brockley Publisher: ISBN: Category : Nature Languages : en Pages : 40
Book Description
Summarizes results obtained from 33 lodgepole pine fertilization research installations established at the Kalamalka Forestry Centre in Vernon, British Columbia. Most of the research was conducted in 15- to 35-year-old thinned, fire-origin stands in the montane spruce and sub-boreal spruce biogeoclimatic zones. Results are discussed with regard to such research topics as: pre- and post-fertilization foliar nutrient status; response to nitrogen additions; effects of nitrogen application rate; effects of post-thinning stand density and site index; effects of timing of fertilization and thinning; small-mammal damage; and effects of snow accumulation.
Author: David M. Baumgartner Publisher: Pullman : Cooperative Extension, Washington State University ISBN: Category : Lodgepole pine Languages : en Pages : 400
Book Description
Topics include the resource, physiology and genetics, site classification, factors Influencing productivities, regeneration, management, harvest and utilization of the most widely distributed conifer in western North America.
Author: Robert Peter Brockley Publisher: University of British Columbia Press ISBN: Category : Technology & Engineering Languages : en Pages : 68
Book Description
"The effects of fertilization with nitrogen (N) alone, and in combination with sulphur (S), on the growth and foliar nutrition of six immature, managed Douglas-fir (Pseudotsuga menziesii var. glauca [Beissn.] Franco) stands in the Interior Cedar-Hemlock (ICH) biogeoclimatic zone of British Columbia are reported 6 years after treatment. Results indicate that interior Douglas-fir stands growing on circummesic sites within the ICH zone are generally responsive to fertilization. Disregarding results from one installation that was damaged by Armillaria root disease, average net volume response following fertilization with N alone was 13.5 m3/ha (range: 6.5-24 m3/ha) compared to the control treatment. Six-year volume gains from N+S additions averaged 16 m3/ha (range: 10-23 m3/ha). In relative terms, stand volume responses to fertilization with N and N+S averaged 24% (range: 8-41%) and 28% (range: 16-39%), respectively. Growth projections generated by the tipsy growth and yield program indicate that the accelerated stand development following a single fertilizer application will likely reduce biological rotations (i.e., culmination of mean annual increment) and technical rotations (e.g., minimum harvestable age) by 2-3 years. Relative growth responses compare favourably with results from Douglas-fir fertilization studies in other jurisdictions.??Pre- and post-fertilization foliar nutrient analyses indicate that several of the sites were marginally S deficient, and that S status deteriorated 1 year following N fertilization. Added S was readily taken up, thereby maintaining a favourable N:S balance in trees fertilized with N+S. Despite improvements in foliar S status, the incremental growth benefits of added S may be too small on most sites to justify the extra expense involved in blending and applying N+S fertilizers in large-scale aerial operations.??Results from this study, and others, indicate that pre-fertilization levels of foliar N and sulphate S (SO4) may have utility in selecting candidate stands and in making appropriate fertilizer prescriptions. For example, the largest growth responses following fertilization may be expected in stands with pre-fertilization foliar N levels less than 11.5 g/kg ( 13 g/kg when using dry combustion analytical methods). Also, low foliar N combined with small amounts of pre-fertilization foliar SO4 (
Author: R. van den Driessche Publisher: CRC Press ISBN: 9780849359712 Category : Science Languages : en Pages : 288
Book Description
Conifer Seedling Mineral Nutrition provides a comprehensive review of conifer seedling mineral nutrition and its significance to forestry. The book covers relationships between mineral supply and uptake; the effects of nutrition on seedling growth; an integration of the ideas of T. Ingestad with classical growth analysis concepts; practical aspects of assessing nutrient status and details of fertilizing bare root and container nursery stock; and fertilizing vegetative propagules. The book also describes and illustrates Mycorrhizas, assessing their importance to plantation establishment in an analysis of recent papers reporting field trials. The effects of nutrients on stress resistance and establishment when applied in the nursery and while planting are discussed in the final chapter. It will prove useful to reforestation research workers, nurserymen, and silviculturalists and should be considered essential reading for forestry students.
Author: Dan Binkley Publisher: John Wiley & Sons ISBN: 9780471818830 Category : Nature Languages : en Pages : 308
Book Description
An integrated treatment of forest nutrition management that draws on the fields of silviculture, soil studies, ecology, and economics to provide broad-based information on how to enhance the nutritional status of forest soils in order to increase their long-term stand productivity. Covers the use of fertilizers to enhance biological nitrogen fixation and how the nutrition status of forests is affected by other operations, such as harvesting and site preparation. Includes methods for assessing nutrient status, the economics of nutrition management, and models to aid in decision making. Written for the non-specialist needing a clear conceptual base for applying forest nutrition science to management. Numerous examples of successful forest management illustrate concepts.
Author: Eugene Shoulders Publisher: ISBN: Category : Pine Languages : en Pages : 32
Book Description
Review of current literature establishes that forest fertilization is a proven, accepted management practice in limited areas of the South where lack of one or more mineral nutrients seriously curtails pine growth and where moderate additions of these nutrients markedly increase yields. In most of the South, however, and especially in the West Gulf Coastal Plain, general use will be deferred until amounts, kinds, and schedules of application can be reliably specified for individual soils.
Author: Robert Peter Brockley
Author: Robert Peter Brockley
Author: 
Author: David M. Baumgartner
Author: Robert E. Burgan
Author: 
Author: Charles W. George
Author: Robert Peter Brockley
Author: R. van den Driessche
Author: Dan Binkley
Author: Eugene Shoulders