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66 results for "Department of Agriculture"
Ponds — Planning, Design, Construction (Agriculture Handbook 590) By United States Department of Agriculture
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For many years farmers and ranchers have been building ponds for livestock water and for irrigation. By 1980 more than 2.1 million ponds had been built in the United States by land users on privately... More > owned land. More will be needed in the future. The demand for water has increased tremendously in recent years, and ponds are one of the most reliable and economical sources of water. Ponds are now serving a variety of purposes, including water for livestock and for irrigation, fish production, field and orchard spraying, fire protection, energy conservation, wildlife habitat, recreation, erosion control, and landscape improvement. This handbook describes embankment and excavated ponds and outlines the requirements for building each. The information comes from the field experience and observation of land users, engineers, conservationists, and other specialists.< Less
Raising Native Plants in Nurseries: Basic Concepts By United States Department of Agriculture
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This booklet was written for the novice who wants to grow native plants and may also wonder what is involved in starting a nursery. If you think that operating your own native plant nursery as a... More > business is your calling, then this manual, and particularly this first chapter, can help you move forward. If, however, you plan to grow native plants for fun, perhaps for use around your home or as a science fair project, this manual can still give you the basic information required for you to be successful, and all the concepts provided in this chapter are still applicable.< Less
North American Species of Cactus By U. S. Department of Agriculture
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In the fall of 1890 Dr. George Vasey, then Botanist of the Department of Agriculture, arranged with me to prepare a revision of North American Cactaceae. Owing to the peculiar difficulty... More > of preserving material the family was poorly represented, even in our leading herbaria. To secure a large amount of additional material in the way of specimens and field notes the Department authorized me to visit the region of the Mexican boundary during the summer of 1891. Preliminary to this exploration it was necessary to examine the Engelmann collection of Cactaceae, in the possession of the Missouri Botanical Garden. This collection, supplemented by the continual additions made at the garden, is by far the largest collection of skeletons and living specimens in this country, and also contains the large majority of our types.< Less
North American Species of Cactus By U. S. Department of Agriculture
eBook (PDF): $2.00
In the fall of 1890 Dr. George Vasey, then Botanist of the Department of Agriculture, arranged with me to prepare a revision of North American Cactaceae. Owing to the peculiar difficulty... More > of preserving material the family was poorly represented, even in our leading herbaria. To secure a large amount of additional material in the way of specimens and field notes the Department authorized me to visit the region of the Mexican boundary during the summer of 1891. Preliminary to this exploration it was necessary to examine the Engelmann collection of Cactaceae, in the possession of the Missouri Botanical Garden. This collection, supplemented by the continual additions made at the garden, is by far the largest collection of skeletons and living specimens in this country, and also contains the large majority of our types.< Less
Tomato Diseases By United States Department of Agriculture
eBook (ePub): $8.99
Tomato Diseases And Their Control by S.P. Doolittle, A.L. Taylor, L.L. Danielson. USDA Agricultural Handbook CONTENTS Types of diseases Diseases caused by bacteria and fungi
Engineering Properties of Douglas-fir Lumber Reclaimed from Deconstructed Buildings By Department of Agriculture United States
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A vast wood resource exists in our Nation’s wood-framed building infrastructure. As the buildings in this infrastructure age and are remodeled or removed for redevelopment, the wood framing... More > residing in these buildings has the potential to be recovered for reuse. However, little technical information exists on the residual engineering properties of reclaimed dimensional lumber. Our study was undertaken to quantify the engineering strength and stiffness of dimensional Douglas-fir 2-by lumber recovered from building dismantlement or deconstruction. These data can serve as a basis for establishing formal recognition of this resource in current grading rules and engineering design standards< Less
Climate Change, Carbon, and Forestry in Northwestern North America: Proceedings of a Workshop November 14 - 15, 2001 Orcas Island, Washington By United States Department of Agriculture
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Forest resource issues have been on the front page of newspapers in northwestern North America for the past two decades. Superimposed on the complexity of managing ecosystems is growing concern about... More > increasing temperatures and other aspects of changes in the atmospheric environment. Managers of public and private forestlands face increasing pressures to include climate change issues, particularly the disposition of carbon, in long term management plans. Management, economic and policy approaches to carbon flows in natural resources are evolving rapidly.< Less
Crosscut Saw Manual By United States Department of Agriculture
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Many readers undoubtedly have run crosscut saws in the past, and a lot of you know the difference between a good running saw and a poorly filed one. A poorly filed saw deserves the name I have often... More > heard attributed to it… “misery whip.” A well-filed saw, however, is efficient and can be satisfying to use. Only in recent years was a chain saw developed that could beat a topnotch bucker in a contest. There is a record of a 32-inch Douglas-fir log cut in 1 minute 262⁄5 seconds by one bucker. Saw filers of any quality are becoming very difficult—if not impossible—to find. This manual was written so those of you who use crosscut saws can maintain them yourselves and overcome some of the misery of that ol’ whip. The manual provides a basic description of how and why a crosscut saw works, tips on building a saw vise, and some experience-tested methods as a guide for achieving a wellrunning saw. Only saws having raker teeth are discussed, because they are by far the most common saws found today.< Less
Climate Change and Agriculture in the United States: Effects and Adaptation By U.S. Department of Agriculture
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Increases of atmospheric carbon dioxide (CO2), rising temperatures, and altered precipitation patterns will affect agricultural productivity. Increases in temperature coupled with more variable... More > precipitation will reduce productivity of crops, and these effects will outweigh the benefits of increasing carbon dioxide. Effects will vary among annual and perennial crops, and regions of the United States; however, all production systems will be affected to some degree by climate change. Agricultural systems depend upon reliable water sources, and the pattern and potential magnitude of precipitation changes is not well understood, thus adding considerable uncertainty to assessment efforts. Livestock production systems are vulnerable to temperature stresses. An animal’s ability to adjust its metabolic rate to cope with temperature extremes can lead to reduced productivity and in extreme cases death.< Less
Recreational Buildings and Facilities (Agricultural Handbook No. 438) By U.S. Department of Agriculture
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Recreational Buildings and Facilities. Nothing says rustic charm like the knotty pine cabin-grade logs used in this series. Meet recreational use compliancy with convenient 4x8 logs for practical... More > affordability. Premiere series is distinguished by exposed architectural post and beam-style roof and loft systems.< Less