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Results: 127 publication requests found. Conservation Soybean Production Systems in the Mid-Southern USA: I. Transitioning from Conventional to Conservation Tillage The adoption of production systems that leave greater than 30% residue coverage on the soil surface, i.e., conservation tillage, is limited in the mid-southern USA due to the development of a hardpan and subsequent yield reductions. This research was conducted to determine if the inclusion of subso... Conservation Soybean Production Systems in the Mid-Southern USA: II. Replacing Subsoiling with Cover Crops The adoption of cover crop production systems is lagging in the mid-southern USA due to concerns over yield stability and on-farm profitability. This research was conducted to determine if the inclusion of a cover crop in conservation tillage systems improves yield, profitability, and water use eff... Performance of a ditch-style phosphorus removal structure for treating agricultural drainage water with aluminum-treated steel slag Several structural, treatment, and management approaches exist to minimize phosphorus (P) transport from agricultural landscapes (e.g., cover cropping and conservation tillage). However, many of these practices are designed to minimize particulate P transport and are not as effective in controlling ... Cover Crop Management Cover crops have long been recognized as an important component of conservation tillage systems due to the many benefits they provide. Finding the right plant or mix of plants that both fits into a “window” or “niche” within the crop rotation and accomplishes your objectives is a key component of c... Soil fertility in conservation tillage systems Soil forming factors (climate, biology, parent material, and drainage) and nutrient management practices heavily influence soil fertility. This article highlights the impacts of soil properties and tillage intensity on nutrient availability in agricultural soils. While organic matter and nutrients t... Preemergence-herbicide placement and residue disturbance affect weed control in conservation tillage cotton Conservation agriculture (CA) practices are threatened by glyphosate-resistant Palmer amaranth. Integrated control practices, including PRE-herbicides and high cover crop biomass CA systems, likely will decrease Amaranthus and other troublesome weed emergence. Field experiments were conducted from a... Loamy sand soil approaches organic carbon saturation after 37 years of conservation tillage Conservation tillage is reported to increase soil organic carbon (SOC) and total nitrogen (TN) contents, but; long-term (> 30 years) field results quantifying the responses in Coastal Plain Ultisols are sparse. The distribution, accumulation, and topsoil storage of SOC and TN after 37 years of crop ... Cover crop mixtures for cotton production Benefits associated with conservation tillage and single species cover crops have been documented across the Southeast, but cover crop mixtures should be compared to traditional single species used in the Southeast to verify if benefits exist under Southeast growing conditions. We examined how two c... Management of high-residue cover crops in a conservation tillage organic vegetable on-farm setting in Alabama A three year on-farm conservation-tillage experiment was initiated in fall of 2008 at Randle Farm LLC, located in Auburn, AL. Our objective was to evaluate and demonstrate implementation of tenable conservation vegetable production practices using high amounts of cover crop residues that reduce soil... Cover cropping increased phosphorus stocks in surface sandy Ultisols under long-term conservation and conventional tillage Low use-efficiency and high environmental significance of phosphorus (P) requires a better understanding of its stocks and behavior in soils. We investigated P fraction dynamics in sandy Coastal Plain soils, where long-term conservation agriculture driven by conservation tillage and residue return f... Corn response across plant densities and row configurations for different moisture environments Corn (Zea mays L.) production in the Southeast can be risky due to erratic summer rainfall and drought prone coarse-textured soils, but irrigation combined with conservation tillage and cover crops may support greater plant densities arranged in different row configurations to improve yield. We exa... Conservation tillage effects in the Atlantic Coastal Plain: An APEX examination The Conservation Effects Assessment Project (CEAP) was established to develop a scientific understanding and methodology for estimating environmental benefits and effects of conservation practices on agricultural landscapes at watershed, regional, and national scales. Field observations and compute... Rapid and distinct responses of particulate and mineral-associated organic nitrogen to conservation tillage and cover crops Particulate organic matter (POM) is considered the most active fraction of organic matter in cultivated soils; POM responds readily to management and is more physically accessible to decomposers compared to more decomposed or mineral-associated forms of organic matter. However, there is increasing... Impact of conservation tillage and nitrogen on sugarbeet yield and quality Conventional and intensive tillage (CT) is widely practiced in sugarbeet growing regions (Beta vulgaris L.). Limited information exists showing the performance of this crop in reduced tillage systems compared to conventional systems. A three-year field experiment with a split-plot arrangement based ... Oat, rye, and ryegrass response to N fertilizer A cereal cover crop combined with conservation tillage can enhance soil productivity of degraded southeastern soils. Direct comparisons regarding performance of different cereal cover crops are limited. This experiment, located at Auburn University’s Wiregrass Research and Extension Center in Head... Runoff and nutrient losses from conventional and conservation tillage systems during fixed and variable rate rainfall Tillage system management directly impacts soil functions that indirectly impacts ecosystem services, sustainability, and economic productivity. Conventional tillage (CT) and no-till (NT) systems were evaluated for differences in runoff amount and quality from corn plots supplied with conventional f... Element losses from fields in conventional and conservation tillage in the Atlantic Coastal Plain, Georgia, United States The elemental composition of soil plays an essential role in crop nutrition, but losses from croplands can negatively impact soil fertility and water quality. We compare the impact of strip tillage (ST) and conventional tillage (CT) on element concentrations and loads in surface runoff and subsurfac... Influence of a cereal rye cover crop and conservation tillage on the critical period for weed control in cotton Cover crops are increasingly being recommended as an integrated approach to controlling glyphosate-resistant Palmer amaranth and other troublesome weeds. Thus a field experiment was conducted in 2010 through 2012, to evaluate the critical period of weed control (CPWC) in cotton as affected by a cer... Conservation tillage impacts and adaptations in irrigated corn production in a humid climate A thorough evaluation of the location-specific impacts of conservation land management practices is critical for their acceptance in farming systems across climates and soils. We initiated a long-term experiment in 2008 on 1.25 ha farm-scale plots to assess the production impacts of a no-till with f... Conservation tillage effects in the Atlantic Coastal Plain: An APEX examination In 2003, the USDA Natural Resources Conservation Service (NRCS) in partnership with several other USDA agencies initiated the Conservation Effects Assessment Project (CEAP). CEAP was established to develop a scientific understanding and methodology for estimating the environmental benefits and effe...