Herbicides for Control of Western Swordfern and Western Bracken (Classic Reprint) PDF Download
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Author: R. E. Stewart
Publisher: Forgotten Books
ISBN: 9780365760207
Category : Gardening
Languages : en
Pages : 20
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Book Description
Excerpt from Herbicides for Control of Western Swordfern and Western Bracken During September 1971, 13 to 15 months after treatment, percent bracken cover and frond height and density were estimated on each plot. Height and density were obtained by measuring the average height and number of fronds in four systematically located l-foot square subsamples in each plot. The results of treatment are shown in table 3. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Author: R. E. Stewart
Publisher: Forgotten Books
ISBN: 9780365760207
Category : Gardening
Languages : en
Pages : 20
Get Book Here
Book Description
Excerpt from Herbicides for Control of Western Swordfern and Western Bracken During September 1971, 13 to 15 months after treatment, percent bracken cover and frond height and density were estimated on each plot. Height and density were obtained by measuring the average height and number of fronds in four systematically located l-foot square subsamples in each plot. The results of treatment are shown in table 3. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Author: R. E. Stewart
Publisher:
ISBN:
Category :
Languages : en
Pages : 12
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Book Description
Author: Ronald Eugene Stewart
Publisher:
ISBN:
Category : Brush
Languages : en
Pages : 10
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Book Description
Author: David J. Dulitz
Publisher:
ISBN:
Category : Ferns
Languages : en
Pages : 8
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Book Description
Author: West of Scotland Agricultural College
Publisher:
ISBN:
Category :
Languages : en
Pages : 29
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Book Description
Author: United States. Superintendent of Documents
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 992
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Book Description
February issue includes Appendix entitled Directory of United States Government periodicals and subscription publications; September issue includes List of depository libraries; June and December issues include semiannual index
Author: Robert Thomas Boyd
Publisher:
ISBN: 9780870717987
Category : Electronic books
Languages : en
Pages : 301
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Book Description
Author: Sean Baumgarten
Publisher:
ISBN: 9781950313075
Category : Science
Languages : en
Pages : 280
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Book Description
The Peninsula Watershed has been integral to the story of San Francisco's growth ever since the Gold Rush. The rapid influx of settlers to San Francisco during the Gold Rush spurred a sudden demand for a reliable water source, which led to the formation of the Spring Valley Water Works (later purchased by the Spring Valley Water Company [SVWC]) in 1858 (Hanson 2005 ). Over the subsequent 70 years, SVWC bought up large swaths of land on the Peninsula, and constructed a complex system of dams, tunnels, and pipes to capture and transport water to San Francisco. Within the Peninsula Watershed, this system includes the Crystal Springs and San Andreas reservoirs, located in the San Andreas Creek, Laguna Creek, and Upper San Mateo Creek basins along the San Andreas Fau The City of San Francisco purchased SVWC in 1930, and today the Peninsula Watershed, managed by the San Francisco Public Utilities Commission (SFPUC), continues to be a key source of water for San Francisco and for other communities in the South and East Bay. Despite the past 150 years of reservoir construction and other hydrologic modifications, the construction of transportation and utility corridors, and the large-scale suburban development that has occurred to the east, the Peninsula Watershed has remained largely undeveloped and is managed to protect water quality, water supply, wildlife habitat, and a range of other natural and cultural resources. The watershed supports some of the largest intact remnants of contiguous habitat in the region, including extensive oak woodlands, old-growth Douglas-fir forests, serpentine grasslands, chaparral, and coastal scrub. Over the past 250 years since Spanish explorers first set foot on the watershed, however, changes in disturbance regimes and other large-scale anthropogenic modifications, including fire suppression, homesteading, livestock grazing, agriculture, tree planting, introduction of plant pathogens, spread of invasive species, and climate change, have altered vegetation dynamics and changed the distribution and structure of vegetation communities throughout the watershed. The changes have raised many questions about the historical ecology of the watershed: What was the extent, distribution, and composition of terrestrial, riparian, and wetland habitats prior to Euro-American modification? How have vegetation distributions changed over the past two centuries, and what are the implications of those changes for species support? Are there remnant patches of relatively unmodified habitat present in the watershed, or areas that are currently in a state of recovery? Where are current habitat characteristics most similar to or different from historically documented conditions? How have key natural and anthropogenic disturbance regimes and processes changed over time? The Peninsula Watershed Historical Ecology Study aims to advance understanding of landscape conditions of the Peninsula Watershed prior to major Euro-American modification, and to provide insights into the nature and drivers of vegetation change since the first Spanish explorers set foot in the watershed 250 years ago. The primary goal of the research was to examine the historical extent, distribution, and composition of terrestrial vegetation types and their trajectories of change within the watershed. To the extent possible, research also addressed historical riparian, wetland, and estuarine habitats; hydrology and sediment dynamics; wildlife support; land use history; and a range of other topics.
Author: Andrew Price
Publisher: BoD – Books on Demand
ISBN: 9535111124
Category : Technology & Engineering
Languages : en
Pages : 666
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Book Description
Herbicide use is a common component of many weed management strategies in both agricultural and non-crop settings. However, herbicide use practices and recommendations are continuously updated and revised to provide control of ever-changing weed compositions and to preserve efficacy of current weed control options. Herbicides - Current Research and Case Studies in Use provides information about current trends in herbicide use and weed control in different land and aquatic settings as well as case studies in particular weed control situations.
Author: Darby C. Stapp
Publisher: Northwest Anthropology
ISBN: 1530193559
Category : Social Science
Languages : en
Pages : 146
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Book Description
JONA Volume 50 Number 1 - Spring 2016 Tales from the River Bank: An In Situ Stone Bowl Found along the Shores of the Salish Sea on the Southern Northwest Coast of British Columbia - Rudy Reimer, Pierre Freile, Kenneth Fath, and John Clague Localized Rituals and Individual Spirit Powers: Discerning Regional Autonomy through Religious Practices in the Coast Salish Past - Bill Angelbeck Assessing the Nutritional Value of Freshwater Mussels on the Western Snake River - Jeremy W. Johnson and Mark G. Plew Snoqualmie Falls: The First Traditional Cultural Property in Washington State Listed in the National Register of Historic Places - Jay Miller with Kenneth Tollefson The Archaeology of Obsidian Occurrence in Stone Tool Manufacture and Use along Two Reaches of the Northern Mid-Columbia River, Washington - Sonja C. Kassa and Patrick T. McCutcheon The Right Tool for the Job: Screen Size and Sample Size in Site Detection - Bradley Bowden Alphonse Louis Pinart among the Natives of Alaska - Richard L. Bland
