The worksheet is designed to show a municipal biosolids manager how many acres are needed for land application of biosolids at an agronomic rate, based on crop nitrogen (N) requirements.
The worksheet is based on a peer-reviewed Extension publication: PNW 511, Worksheet for Calculating Biosolids Application Rates in Agriculture authored...
Agricultural education at the high school level, like all vocational programs, is expanding vertically as well as horizontally. With this increased emphasis placed on vocational agriculture, the shortage of teachers is already being felt and the situation will, in all probability, become more critical.
The expansion of the programs to...
This bibliography focuses on works that will provide the reader with supplemental resources on the history of ethnic minorities in Oregon. An effort has been made to highlight materials that are particularly appropriate for use in teaching students of various ages. The featured resources address all historical time periods, but...
This chapter addresses compost quality specifications, chemical and physical properties of compost, evaluation of compost maturity and stability, and variability in compost analytical data.
The Amphipoda have been divided into the suborders Gammaridea,
Caprellidea, Cyamidea, Hyperiidea and Ingolfiellidea
(Schram 1986, Crustacea. Oxford University Press, New
York). However, Myers and Lowry (2003) regard the caprellids,
or skeleton shrimps, and the cyamids, or whale lice, as
families Caprellidae and Cyamidae. These distinctive groups
are covered in...
A joint project of the Cooperative Extension Service and Farm Credit and Chicago Mercantile Exchange,Published January 1991. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Published January 1991. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Published January 1991. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
The current trend toward the establishment and care of forests for a
wide combination of uses requires flexibility in forest culture and a
knowledge of the silvicultural choices available to the resource manager. This
publication summarizes for each of 37 major forest types in the United States
the silvicultural systems...
Erigeron decumbens var. decumbens, the Willamette daisy, is known only from the Willamette Valley of Oregon. Herbarium records, from the 1800's until 1934, indicate that the Willamette daisy was once common and widely distributed throughout the Willamette Valley (Clark et al. 1993). However, between 1934 and 1980, this taxon was...
L. C. Dunn (1893-1974) spent most of his scientific career conducting research in
developmental genetics as a member of the Zoology Department at Columbia
University in the City of New York. He had an accomplished scientific career
researching mutations in mice, which earned him respect from other geneticists and
scientists....
Progress in State forestry has been stimulated by Federal assistance since 1924 when Congress passed the Clarke-McNary Act authorizing cooperation with the States in forest-fire control measures with a view to the protection of forest and water resources and to the continuous production of timber on lands chiefly suitable for...
Rocks are defined as aggregates or mixtures of minerals; rocks also include noncrystalline materials such as the natural glasses, and organic material such as coal. Rocks are found ready-made in nature. They are not homogeneous nor are they crystalline, although they may be made up of crystalline material. The composition...
Published October 1984. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Published November 1984. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Published February 1985. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Published November 1984. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Published October 1985. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Published November 1984. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
The southeastern section of Alaska has extensive forests of pulpwood that are managed by the Federal Government for a sustained production of timber, excellent water-power resources for industrial use, tidewater transportation both from the woods to the mills and from the mills to markets, and an equable climate that permits...
The wood of black locust, Robinia pseudoacacia, is used chiefly for insulator pins, wagon hubs, treenails, fence posts, and mine timbers. For these uses it is admirable because of its hardness, strength, and durability. A valuable characteristic of the tree is its rapid growth on many types of soils during...
In the measurement of fire weather and forest inflammability,
now practiced regularly at more than 90 forest stations in northern
Idaho and western Montana, it is necessary to use many methods
that are peculiar to this work. Some of these methods are familiar
to meteorologists, but few foresters have had...
Published November 1966. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
The central purpose of this study was to formulate and test a
model for securing information from the ornamental horticultural
industry that would provide a basis for curriculum development in
vocational agriculture. In order to develop the model, it was necessary
to accomplish the following:
1. Determine typical occupations in...
This report presents information concerning the water and related land resources of the Powder Drainage Basin. Its purpose is (1) to provide information on the past and present uses of water and related land resources; (2) to supply the production data from the use of these resources; (3) to assess...
This publication furnishes information that should be useful to 4-H Club leaders and members and other young people. It is intended to supplement subjectmatter material published by the various States and other agencies. The text emphasizes getting acquainted with forest trees and forest stands and learning their different values to...
Published July 1956. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
This report presents information concerning the water and related land resources of the Middle Willamette River Basin and is the result of a cooperative study by the U. S. Department of Agriculture and the State Water Resources Board of Oregon.
The State Water Resources Board of Oregon is making a...
Published March 1984. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Revised June 1992. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Understanding the impact of humans on the environment has long been a topic of scholarly interest and debate. As environmental problems mount, accounts of historic ecological conditions and the factors of change become increasingly useful. This study considers competing schools of interpretation about human impacts on ecological landscapes and develops...
Published 1945? Reprinted June 1952. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
A joint project of the Cooperative Extension Service and Farm Credit. Published September 1987. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
New teaching techniques are the products of a wide
spectrum of research. The final test of all teaching
techniques, however derived, is their application to
a given classroom situation. The purpose of this study
is to determine whether the "principle approach", a
relatively new teaching method in agriculture, has been...
A joint project of the Cooperative Extension Service and Farm Credit. Published September 1987. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
A joint project of the Cooperative Extension Service and Farm Credit. Published September 1988. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
A joint project of the Cooperative Extension Service and Farm Credit. Published September 1988. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Irrigated agriculture constitutes the greatest consumptive water use globally, so that irrigation efficiency measures are an important part of global efforts to best utilize this limited resource. However, greater irrigation efficiency must be achieved while simultaneously maintaining or increasing crop yields and farming profitability. Incremental water use decisions are made...
Published February 1924. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Published February 1946. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Published June 1951. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Published October 1988. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
In an initial research proposal of December 1969, the scientists of the Coniferous Forest Biome (CFB), an ecosystem study centered in the Pacific Northwest and part of the larger International Biological Programme (IBP), expressed optimism that computer simulations and systems modeling could transform empirical knowledge of the carbon, water, and...
This dissertation focuses on the life of Dixy Lee Ray as it examines important developments in marine biology and biological oceanography during the mid twentieth century. In addition, Ray's key involvement in the public understanding of science movement of the 1950s and 1960s provides a larger social and cultural context...
By 1900 domestication was a promising, if somewhat vexed, subject in biology. Volumes had been written about domestication, but little serious scientific inquiry was directed toward the phenomenon. Expertise lay with practical men, primarily breeders and fanciers. The bulk of scientific commentary on domestication came from anthropologists who derived theories...
The education (particularly graduate education) of Americans
who were active in astronomical research between 1876 and 1941
is assessed for its effectiveness in preparing the astronomers for
careers in research. This period contains three dynamic changes:
the growth of American astronomy in becoming the world's leading
community of astronomers, the...