Increasing Warm-Season Native Grass Biomass Using Fire, Herbicide, and Nitrogen Applications PDF Download
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Author: Sharon Clay Publisher: ISBN: Category : Electronic books Languages : en Pages : 0
Book Description
The North American Great Plains tallgrass prairie was once a system of native cool and warm season grasses, which have been degraded by non-native invasive plants. Native grass restoration is highly desirable to improve ecosystem functions and productivity. In this two-year study, the impact of fire, herbicide, and nitrogen on productivity and the presence of invasive species [primarily the cool season grass, smooth brome (Bromus inermis Leyss.)] and native warm season native grass species [big bluestem (Andropogon gerardii Vitman), sideoats and blue grama (Bouteloua curtipendula (Michx.) Torr.), and B. gracilis (Willd. Ex Kunth) Lag. ex Griffiths] were investigated. Spring fire or a glyphosate application increased warm season grass biomass and decreased cool season grass biomass at peak warm season growth (August) during the treatment year. A second consecutive year of fire or herbicide further increased warm season grass biomass. If left untreated in the second year, cool season grasses tended to increase when sampled in August. Long-term management implementation is needed to suppress the tenacious cool season species and encourage the reestablishment of warm season grass populations.
Author: Sharon Clay Publisher: ISBN: Category : Electronic books Languages : en Pages : 0
Book Description
The North American Great Plains tallgrass prairie was once a system of native cool and warm season grasses, which have been degraded by non-native invasive plants. Native grass restoration is highly desirable to improve ecosystem functions and productivity. In this two-year study, the impact of fire, herbicide, and nitrogen on productivity and the presence of invasive species [primarily the cool season grass, smooth brome (Bromus inermis Leyss.)] and native warm season native grass species [big bluestem (Andropogon gerardii Vitman), sideoats and blue grama (Bouteloua curtipendula (Michx.) Torr.), and B. gracilis (Willd. Ex Kunth) Lag. ex Griffiths] were investigated. Spring fire or a glyphosate application increased warm season grass biomass and decreased cool season grass biomass at peak warm season growth (August) during the treatment year. A second consecutive year of fire or herbicide further increased warm season grass biomass. If left untreated in the second year, cool season grasses tended to increase when sampled in August. Long-term management implementation is needed to suppress the tenacious cool season species and encourage the reestablishment of warm season grass populations.
Author: Valentin Missiakô Kindomihou Publisher: BoD – Books on Demand ISBN: 1789849497 Category : Science Languages : en Pages : 144
Book Description
Renewed attention is being given to global agricultural productivity such as food security, food prices, financial viability of farm businesses under rising costs, declining availability and affordability of critical inputs including suitable land, etc.Thus, farming systems need to combine space maintenance and food herds in rural areas. Facing these new challenges, interest in grasses and grasslands as important forage systems has increased over the past 30 years, due to their economic, environmental, and ecological properties. A better use of economic and ecological potentials requires an understanding of their functions, and the development of tools for feeding herds, managing space, maintaining biodiversity, and limiting pollution.This book intends to provide the reader with the latest aspects on grasses and grassland for the well-being of farming systems.
Author: Zachary Michael Duncan Publisher: ISBN: Category : Languages : en Pages :
Book Description
Recent research demonstrated that mid- or late-summer prescribed fire can be employed to manage sericea lespedeza infestations in the Kansas Flint Hills. Despite optimistic reports, ranchers have voiced concerns that mid- or late-summer prescribed fire may negatively affect stocker cattle growth performance, native warm-season plant populations, or forage biomass accumulation. Eighteen pastures were grouped by watershed and assigned to one of three prescribed-fire treatments: spring (7 April ± 2.1 d), summer (21 August ± 5.7 d), or fall (2 October ± 9.9 d). All prescribed fire treatments were applied prior to grazing in 2019 and 2020. Yearling beef cattle were grazed from May to August at a targeted stocking density of 279 kg live-weight ˖ ha−1. Forage biomass accumulation was measured in July of 2018 and 2020 by clipping vegetation within 0.252-meter frames. Soil cover, botanical composition, and root carbohydrate concentrations of key native tallgrass species were evaluated during the growing seasons of 2018, 2019, and 2020. After 2 complete years of prescribed fire application and grazing, total body weight gains and average daily gains were greater (P = 0.01) for cattle that grazed the spring and summer prescribed-fire treatments compared with those that grazed the fall prescribed-fire treatment. As a result, final body weights were greater (P = 0.04) in the spring and summer fire treatments compared with the fall fire treatment. Conversely, forage biomass accumulation did not differ (P = 0.91) between fire regimes. When soil cover was evaluated, proportions of bare soil were greater (P
Author: David D. Briske Publisher: Springer ISBN: 3319467093 Category : Technology & Engineering Languages : en Pages : 664
Book Description
This book is open access under a CC BY-NC 2.5 license. This book provides an unprecedented synthesis of the current status of scientific and management knowledge regarding global rangelands and the major challenges that confront them. It has been organized around three major themes. The first summarizes the conceptual advances that have occurred in the rangeland profession. The second addresses the implications of these conceptual advances to management and policy. The third assesses several major challenges confronting global rangelands in the 21st century. This book will compliment applied range management textbooks by describing the conceptual foundation on which the rangeland profession is based. It has been written to be accessible to a broad audience, including ecosystem managers, educators, students and policy makers. The content is founded on the collective experience, knowledge and commitment of 80 authors who have worked in rangelands throughout the world. Their collective contributions indicate that a more comprehensive framework is necessary to address the complex challenges confronting global rangelands. Rangelands represent adaptive social-ecological systems, in which societal values, organizations and capacities are of equal importance to, and interact with, those of ecological processes. A more comprehensive framework for rangeland systems may enable management agencies, and educational, research and policy making organizations to more effectively assess complex problems and develop appropriate solutions.
Author: Sharon Clay
Author: Sharon Clay
Author: Valentin Missiakô Kindomihou
Author: 
Author: Valentin Missiakô Kindomihou
Author: Vanessa Mulkey-Olson
Author: Zachary Michael Duncan
Author: 
Author: 
Author: David D. Briske
Author: Victor L. Maddox