Author: Diane Rae MantheyPublisher:
ISBN:
Category : Foxtail
Languages : en
Pages : 202
Book Description
Weed Population Dynamics in Wheat and Sunflower
Author: Diane Rae MantheyPublisher:
ISBN:
Category : Foxtail
Languages : en
Pages : 202
Book Description
Dynamics of Weed Populations
Author: Roger CousensPublisher: Cambridge University Press
ISBN: 9780521499699
Category : Gardening
Languages : en
Pages : 352
Book Description
Puts the broad empirical knowledge on weed ecology into a theoretical framework.
Reduced nitrogen inputs in wheat
Author: J M. BaylisModelling Weed Population Dynamics
Author: Weed Ecology
Author: Steven R. RadosevichPublisher: Wiley-Interscience
ISBN:
Category : Gardening
Languages : en
Pages : 296
Book Description
While some plants are valued and selected for their beauty, others are reviled for their apparent lack of these traits. Weeds are recognized worldwide as undesirable economic pests; however, the value of any plant is unquestionably determined by the perception of the viewer. This book looks at weeds from an ecological viewpoint, emphasizing the way in which one species interacts with others. Copyright © Libri GmbH. All rights reserved.
Effects of Summer Annual Cover Crops on Weed Population Dynamics
Author: Virender KumarManage Weeds on Your Farm
Author: Charles L. MohlerPublisher:
ISBN: 9781888626209
Category : Weed control
Languages : en
Pages : 400
Book Description
Manage Weeds on Your Farm: A Guide to Ecological Strategies provides you with in-depth information about dozens of agricultural weeds found throughout the country and the best ways of managing them. In Part One, the book begins with a general discussion of weeds: their biology, behavior and the characteristics that influence how to best control their populations. It then describes the strengths and limitations of the most common cultural management practices, physical practices and cultivation tools. Part Two is a reference section that describes the identification, ecology and management of 63 of the most common and difficult-to-control weed species found in the United States.
Comprehensive Dissertation Index
Author: Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 798
Book Description
Dynamics of Giant Ragweed and Common Sunflower in Kansas
Author: Analiza Henedina M. RamirezPublisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Success of plants depends largely on their environment. A survey, field and greenhouse studies were conducted from 2006 to 2010 to characterize the dynamics of giant ragweed (AMBTR) and common sunflower (HELAN) in KS through determining their distribution, plant-soil feedback response and demography. The survey revealed a distinct distribution pattern within the state with HELAN being more dominant than AMBTR. Populations of AMBTR and HELAN from KS could be grouped by their emergence characteristics. Plant-soil feedback response of AMBTR and HELAN varied across sites with HELAN having a consistent positive feedback response while AMBTR had negative feedback response in IL, KS, MI-a, MI-B, OR and SD but not in MT. Interaction coefficient analysis was neutral for IL, KS and MI-b while positive for OR and SD and negative for MI-a and MT. Plant-soil feedback response of KS-derived populations of AMBTR and HELAN indicated that both KS-AMBTR and KS-HELAN seemed to grow best in soil preconditioned by another species. Seed survivorship over winter and summer, emergence, and population growth rates of both weed species varied over three years with HELAN having higher growth rates that AMBTR. This study showed that demographic success of HELAN and AMBTR was greatly influenced by the climatic conditions more than any other factors. AMBTR from IL, if introduced to the state can adapt to KS conditions. Further studies including impacts of soil biota, nutrient dynamics and biochemical processes such as allelopathy are needed to better understand the mechanism behind the plant-soil feedback response of the two weed species and its contribution to the demographic success of AMBTR and HELAN.
American Doctoral Dissertations
Author: Publisher:
ISBN:
Category : Dissertation abstracts
Languages : en
Pages : 776
Book Description