[PDF] Disk And Ray Achene Development And Germination Characteristics Of Tansy Ragwort eBook

Author : Robert Parker
Publisher :
Page : 0 pages
File Size : 28,55 MB
Release : 1998-05
Category :
ISBN : 9780788149269

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Learning to identify unwanted plants around the home, farm, or ranch will be much easier with this comprehensive publication. It will help you identify plants that compete with native plants, horticultural, & agricultural crops as well as those that can poison livestock & people. This easy-to-use guide contains more than 900 full-color photos showing the early growth stages, mature plants, & features for positive identification of each weed discussed. Descriptions, habitats, & characteristics of each plant are also included. Glossary. Key to plant families. References. Index.

Author : Roger L. Sheley
Publisher :
Page : 466 pages
File Size : 46,74 MB
Release : 1999
Category : Science
ISBN :

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In addition to the theory and principles of weed management, this book provides information about twenty-nine of the most serious weeds in the West, including weed identification, origin, history and distribution, invasion potentials, biology and ecology, and specific management options. Full-color photographs and distribution maps help illustrate the plants and the invasive threat they pose. An invaluable resource for land managers, resource specialists, and students of natural resource management, Biology and Management of Noxious Rangeland Weeds provides practical, science-based information needed for sustainable weed management and land restoration.

Author :
Publisher :
Page : 622 pages
File Size : 34,10 MB
Release : 1982
Category : Agriculture
ISBN :

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Sept.-Oct. issue includes list of theses and dissertations for U.S. and Canadian graduate degrees granted in crop science, soil science, and agronomic science during the previous academic year.

Author :
Publisher : Government Printing Office
Page : 310 pages
File Size : 43,50 MB
Release : 2005
Category : Gardening
ISBN : 9780160729966

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NOTE: NO FURTHER DISCOUNT FOR THIS PRODUCT -- Significantly reduced price -- Overstock List Price Describes invasive, non-native plants moving into Alaska.

Author : Rachel Winston
Publisher : Government Printing Office
Page : 338 pages
File Size : 44,80 MB
Release : 2017-12-13
Category : Gardening
ISBN : 9780160942891

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This guide focuses on the most problematic weeds in eastern North America for which there are at least some biocontrol agents established and/or available. Multiple photos and descriptions of each weed included in this guide emphasize key identification traits and plant ecology. For each weed included in this guide, all biocontrol agents released or currently found in North America are described individually. Photos highlighting key identification features and damage are included. The release history, current status, and recommended use of each biocontrol agent are described in detail. Recommendations and current impact often vary between the US and Canada, therefore, the information is presented separately. Includes international code of best practices for classical biological control of weeds.