Download or read book Mortality in semi mature white spruce on Prince Edward Island written by Canada. Forestry Canada. Maritimes Region and published by Fredericton, N.B. : Forestry Canada - Maritimes. This book was released on 1988 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: There are about 50,000 ha of white spruce stands on formerly agricultural land in Prince Edward Island, representing about 30% of the province's merchantable softwood resource. Over 60% of the field spruce is 30-50 years of age, about the limit of their growth. Since this early mortality is limited to white spruce growth on formerly cultivated fields, the study postulated that nutrient deficiencies might be the main cause of the early mortality. With the assumption that P.E.I. white spruce is genetically similar to white spruce on nearby undisturbed soils, comparisons of nutrient level trends were carried out over age sampling continuum in the two situations. Both current and year- old foliage were sampled, because deficiencies are sometimes characterized by withdrawal of scarce nutrients for old to new foliage.

Download or read book Tree Chemistry Database written by and published by . This book was released on 2005 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Forest Pest Conditions in the Maritimes in 1992 written by Laszlo P. Magasi and published by . This book was released on 1993 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: Review of the status of forest insects and diseases in the Maritimes Region in 1992, along with forecast conditions for 1993 when appropriate. Describes pests and problems of conifers, hardwoods, and high value areas such as nurseries, seed orchards, plantations, and Christmas tree areas and summarizes control operations against spruce budworm and Sirococcus shoot blight. A chapter on forest health monitoring brings together the various aspects of work dealing with changes in forest conditions. Forest insect monitoring systems, such as pheromones and light traps, are briefly described. A list of reports and publications relating to forest pest conditions is included.

Download or read book Forest Insect and Disease Conditions in Canada written by and published by . This book was released on 1993 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Information Report written by and published by . This book was released on 1991 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Forest Insect and Disease Conditions in the Pacific Northwest written by and published by . This book was released on 1984 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Government Reports Announcements Index written by and published by . This book was released on 1994 with total page 566 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 1994 with total page 558 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Government of Canada Publications Quarterly Catalogue written by and published by . This book was released on 1990 with total page 498 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Forest Insect Pests in Canada written by John Alexander Armstrong and published by Canadian Government Publishing. This book was released on 1995 with total page 756 pages. Available in PDF, EPUB and Kindle. Book excerpt: The papers presented in this book cover the range of forest insect pest management activities in Canada. The first section contains papers on the current status of insect pests by region, including data on insect populations and extent of defoliation caused by the insect. The next section covers pest management technology, including the use of insecticides, insect viruses, fungal pathogens, growth regulators, antifeedants, pheromones, natural predators, and aerial spraying. The third section contains papers on the application of technology and equipment for forest pest control, and includes papers on the impacts of insecticides on the forest environment. The fourth section describes operational control programs by province. The final paper presents future strategies for the management of forest pests. An author index is included.

Download or read book Government Reports Annual Index written by and published by . This book was released on 1994 with total page 1368 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book New Zealand Journal of Forestry Science written by and published by . This book was released on 1994 with total page 454 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Digest Des Rapports D information written by and published by . This book was released on 1984 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Directory of Selected Older Maritimes Plantations written by R. C. West and published by Fredericton, N.B. : Maritimes Forest Research Centre, Canadian Forestry Service. This book was released on 1984 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plantation forestry is a major compoment of the intensive forestmanagement programs of Nova Scotia and New Brunswick. Plantationyields of 210 cubic m/ha are now required of all licensees in NewBrunswick. A directory is presented of selected successful olderplantations in the Maritimes that are nearing or have exceededthe 40-year rotation age prescribed in provincial guidelines. This will provide forest managers with a reference for measuringthe success of recent reforestation operations.

Download or read book Microlog Canadian Research Index written by and published by . This book was released on 1994 with total page 1294 pages. Available in PDF, EPUB and Kindle. Book excerpt: An indexing, abstracting and document delivery service that covers current Canadian report literature of reference value from government and institutional sources.

Download or read book Annual Report of the Forest Insect and Disease Survey written by Forest Insect and Disease Survey (Canada) and published by . This book was released on 1978 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Bibliography of Agriculture with Subject Index written by and published by . This book was released on 1989 with total page 796 pages. Available in PDF, EPUB and Kindle. Book excerpt: