Browsing by Department "Agronomy and Soils"
Now showing items 1-20 of 95
Acrolein (2-Propenal): A Potential Alternative to Methyl Bromide
(2008-08-15)
Vegetable producers face a variety of pest species that can negatively impact the performance of their crops. Nematodes, plant diseases, and several weed species, notably nutsedges (Cyperus spp.), are common problems in ...
Aerification Tine Effects on Tifway Bermudagrass Athletic Fields
(2009-04-15)
Although commonly practiced, there is little research examining the effect of aerification tine type (hollow or solid) and length on athletic fields. The objective of this research was to evaluate different aerification ...
Agroecosystem Effects on Carbon Sequestration and Soil Function in Tennessee Valley (Alabama) Paleudults
(2011-12-15)
Agronomic management affects soil organic matter (SOM) pools that impact chemical and physical properties, soil carbon (C) sequestration, soil quality, and ultimately, soil function. Pools of SOM and management-dependent ...
Agroecosystem Management Effects on Carbon And Nitrogen Cycling across a Coastal Plain Catena
(2008-08-15)
Agricultural activities contribute an annual increase in radiative forcing of about 20%. In southeastern US, use of cover crops in conservation tillage (CsT) has increased in recent years. However, data on soil C and N ...
Alternative Control Options for Annual Bluegrass: Response to Zinc
(2012-08-15)
Annual bluegrass (Poa annua L.) is the most problematic winter weed that turfgrass managers face in the southeast U.S. Herbicides are often used to control annual bluegrass, however this weed quickly invades most turf ...
Annual Bluegrass (Poa annua L.) Control and Turfgrass Response to Amicarbazone
(2011-05-31)
Amicarbazone is a photosystem II (PSII)-inhibiting herbicide being evaluated for annual bluegrass control in bermudagrass (Cynodon spp.) overseeded with perennial ryegrass (Lolium perenne L.). The objectives of this study ...
Association Mapping of SSR Markers to Tomato Spotted Wilt Virus Resistance in Cultivated Peanuts
(2016-05-04)
Tomato Spotted Wilt Virus (TSWV), one of most serious diseases in peanut, is transmitted by thrips (Franklinieila occidentalis). The mechanism of TSWV resistance and relevant genes in peanut are still unknown. Breeding and ...
Calcium Availability to Runner-type Peanut (Arachis hypogaea L.) in the Southeastern United States
(2014-12-15)
Sandy soils in major peanut producing areas in the southeastern United States may be low in plant available Ca. Insufficient Ca supply to developing peanut may result in undeveloped pods and finally low yield, substandard ...
Carbon and Nitrogen Cycling in a Peanut-Cotton-Bahiagrass Rotation
(2013-12-11)
Restoration of soil fertility is important in the peanut-producing portion of the Coastal Plain, where many soils are highly weathered, structurally weak, and low in fertility as a result of intense row cropping. A ...
Carbon and Nitrogen Cycling under Conservation and Conventional Tillage in Peanut and Collard Agroecosystems
(2009-12-18)
Although there has been considerable adoption of conservation tillage by agronomic and vegetable producers in the US, information on nutrient release from organic residues is lacking. Information on release of nutrients ...
Carbon and Nitrogen Cycling under Warm Season Turfgrasses
(2014-06-06)
Despite its large-scale presence in the urban ecosystem, the role of turfgrasses in C and N cycling in urban soils in the southeastern United States has not been documented, and in particular C and N cycling studies in ...
Characterization of Pecan Shells for Value-added Applications
(2010-07-30)
There is a growing need in the United States to decrease dependence on fossil fuels because of energy security and environmental concerns associated with their use. Energy derived from biomass is especially important to ...
Characterization of Soil Microbial Communities in Agricultural and Forest Ecosystems
(2012-08-27)
Soil microbial community plays a critical role in nutrient cycling. The overall objective of this work was to determine responses of soil microbial communities to agricultural and forest management practices. Field experiments ...
Comparison of Broiler Litter, Broiler Litter Ash with Reagent Grade Materials as Sources of Plant Nutrients
(2005-12-15)
Broiler chicken production is a major agricultural industry in the southeastern United States that produces large amounts of waste in the form of broiler litter (manure and bedding). Broiler litter is often used as a ...
Comparison of Soil Organic Carbon Methods and Carbon Sequestration and Soil Characteristics in Louisiana Crawfish Ponds
(2013-12-10)
Two studies were conducted for this thesis research. In the first study, nine soil organic carbon (SOC) methods were evaluated using 336 soil samples from different regions, including Alabama, Louisiana, and Arkansas, as ...
Composition and Yield of Eight Switchgrass Cultivars in Alabama
(2009-04-30)
Switchgrass (Panicum virgatum) is a viable cellulosic energy crop. Energy conversion technologies prefer cellulosic feedstock to contain low concentrations of lignin and ash and high concentrations of fermentable sugars. ...
Comprehensive Evaluation of Bacteroidales for Identification of Fecal Contamination Sources in Freshwater
(2013-11-25)
Accurate identification of fecal contamination sources in an impaired watershed is crucial for developing best management practices. Microbial source tracking (MST) is commonly used to identify fecal pollution sources and ...
Conservation System Impacts on Soil Properties and Water-Use Efficiency in the Southeastern U.S. Coastal Plain
(2014-08-14)
Conservation practices, such as cover cropping, crop rotation, and conservation tillage, have become an integral part in improving and sustaining cropping systems in the Coastal Plain region of the southeastern U.S., where ...
Corn Sustainability for Cellulosic Biofuel and Grain Production in the Southeastern US
(2013-04-22)
Biofuel production from plant biomass has been proposed as a solution to mitigate fossil
fuel use. Corn (Zea mays L.) is an important crop in the Southeast. Its abundance and high yield
potential makes it attractive as ...
Cultivation Practices for Astragalus membranaceus in the Southeastern United States
(2009-04-15)
Astragalus membranaceus is a traditional Chinese medicinal herb and has been used for thousands of years. Information on its cultivation in Southeastern United States is lacking. In September 2006, three field experiments ...