Download or read book Response of Thinned Immature Lodgepole Pine to Nitrogen Fertilization Three year Growth Response written by Robert Peter Brockley and published by Canadian Forestry Service. This book was released on 1988 with total page 37 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Response of Thinned Immature Lodgepole Pine to Nitrogen Fertilization Six year Growth Response written by Robert Peter Brockley and published by Forestry Canada. This book was released on 1991 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Lodgepole Pine Nutrition and Fertilization written by Robert Peter Brockley and published by . This book was released on 1996 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book Harmonisation of Regulatory Oversight in Biotechnology Safety Assessment of Transgenic Organisms Volume 3 OECD Consensus Documents written by OECD and published by OECD Publishing. This book was released on 2010-11-09 with total page 327 pages. Available in PDF, EPUB and Kindle. Book excerpt: These OECD Biosafety Consensus Documents identify elements of scientific information used in the environmental safety and risk assessment of transgenic organisms which are common to OECD member countries and some non members associated with the work.

Download or read book Effects of Fertilization on the Growth and Foliar Nutrition of Immature Douglas fir in the Interior Cedar hemlock Zone of British Columbia written by Robert Peter Brockley and published by University of British Columbia Press. This book was released on 2006 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: "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 (

Download or read book Canadian Journal of Forest Research written by and published by . This book was released on 2004 with total page 820 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Evaluation of Five Single Tree Fertilizer Trials in Thinned Lodgepole Pine Stands in the Prince Rupert Forest Region written by D. Yole and published by . This book was released on 1991 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book FRDA Report written by and published by . This book was released on 1996 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book FRDA Research Memo written by and published by . This book was released on 1987 with total page 478 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Forest Fertilization written by Henry Nixon Chappell and published by . This book was released on 1992 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Lodgepole Pine in North America written by Peter Koch and published by . This book was released on 1996 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Plant Analysis written by D Reuter and published by CSIRO PUBLISHING. This book was released on 1997 with total page 585 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plant Analysis: An Interpretation Manual 2nd Edition is an easily accessible compilation of data summarising the range of nutrient concentration limits for crops, pastures, vegetables, fruit trees, vines, ornamentals and forest species. This information is valuable in assessing the effectiveness of fertiliser programs and for monitoring longer term changes in crop nutritional status. New to this edition: *Volume and scope of information accessed from the literature has expanded several-fold. Interpretation criteria for 294 species have been compiled in the tables from more than 1872 published papers. *New chapter on nutrient criteria for forest species. *Includes guidelines for collecting, handling and analysing plant material. An entire chapter is devoted to the identification of nutrient deficiency and toxicity symptoms.

Download or read book Bibliography of Agriculture written by and published by . This book was released on 1976 with total page 1732 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Forestry Chronicle written by and published by . This book was released on 2002 with total page 960 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effects of Intensive Fertilization on the Foliar Nutrition and Growth of Young Lodgepole Pine Forests in the British Columbia Interior written by Robert Peter Brockley and published by . This book was released on 2010 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: Beginning in 1992, the British Columbia Ministry of Forests established a small network of lodgepole pine and interior spruce nutrient optimization research installations on representative sites within three major biogeoclimatic (BEC) zones in the British Columbia Interior. The objectives of the long-term "maximum productivity" study are to (1) compare the effects of different regimes and frequencies of repeated fertilization on the foliar nutrition, growth, and development of young interior forests, and (2) determine the effects of large nutrient additions on above- and below-ground timber and non-timber resources. This report examines the effects of repeated fertilization on foliar nutrition and tree- and stand-level growth and development over 12 years at the five lodgepole pine study sites.--Document.

Download or read book A Systematic Review of Forest Fertilization Research in Interior British Columbia written by Anya Reid and published by . This book was released on 2017 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: Despite the large body of published and unpublished research that sup- ports the FFT Program, uncertainty remains about the extent of the biologi- cal response of tree growth to fertilization by different tree species under different ecosystem, site, and stand conditions. [...] To determine the state of knowledge and where further research and data analysis are needed, we con- ducted a systematic review of literature on the growth responses of interior tree species to fertilization. [...] Relative growth response of interior spruce to fertilization ranged from 9 to 109% for height, from 75 to 277% for volume, and from 27 to 203% for basal area (Table 1). [...] Two other topics of concern with respect to the resilience of British Colum- bia forests to climate change are the interactions between forest fertilization 15 Basal area (%) Volume (%) Height (%) and (1) damage due to insects, disease, and weather, and (2) carbon fluxes and storage. [...] Effects of nitrogen source and season of application on the nu- trition and growth of lodgepole pine.

Download or read book Proceedings of the Biennial Southern Silvicultural Research Conference written by and published by . This book was released on 2001 with total page 634 pages. Available in PDF, EPUB and Kindle. Book excerpt: