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Showing 1 to 20 of 43 for “"manure application"”.
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Nitrogen dynamics and biological response to dairy manure application
Animal manures are land applied in agronomic systems to supply essential crop nutrients and decrease dependency on chemical fertilizers. Liquid manures are traditionally surface broadcast to fields and sometimes incorporated to reduce odor and nutrient losses; however, incorporation is incompatible …
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Long-term effects of copper rich swine manure application on continuous corn production
… response to high Cu levels from Cu rich swine manure and CuS0₄ applications. The field research was conducted on soils with diverse properties, i.e., on a Bertie fine sandy loam (Aquic Hapludults), a Guernsey silt loam (Aquic Hapludalfs), and a Starr-Dyke clay loam (Fluventic DystrochreptsTypic …
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Corn Production, Inorganic Nitrogen Distribution, and Soil Chemical Transformations Associated With Liquid Beef Manure Application Methods
Despite being a popular application method, many producers reported crop growth and production problems when liquid manure was knife injected into soil. Field and laboratory studies were conducted to determine the effects of liquid beef manure application methods and nitrification inhibitors on …
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Response of Soil and Water Quality to Winter Manure Application from Small Agricultural Watersheds in South Dakota
… for the livestock producers to manage the manure generated at the farm. The South Dakota Department of Environmental and Natural Resources does not recommend manure application in the state during the winter months when the ground is frozen. Thus, producers are left with the options such as …
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IMPACT OF CONVENTIONAL AND PRECISION CATTLE MANURE APPLICATION METHODS ON HORMONE CONCENTRATIONS AND ACTIVITIES IN SURFACE WATER AND SOIL
… can generate vast quantities of animal manure that is concentrated within relatively limited areas. Managing manure is challenging, but management often involves applying manure to agricultural lands. Applying manure to land recycles valuable nutrients and organic matter beneficial for …
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Fate and transport of antibiotic resistant bacteria and resistance genes in artificially drained agricultural fields receiving swine manure application
… resistant bacteria in their excrement. Application of swine manure to agricultural fields as fertilizer creates a pathway for antibiotic resistant bacteria and their associated resistance genes to enter the environment. This study monitored enterococci, tylosin resistant enterococci and …
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Impact of Manure Land Management Practices on Manure Borne Antibiotic Resistant Elements (AREs) in Agroecosystems
… primarily with livestock rearing. Animal manure land application integrates livestock farming and agroecosystems. This manure contains antibiotic resistant elements (AREs) (resistant bacteria, resistance genes, and veterinary antibiotics) that contribute towards antimicrobial resistance. …
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Long-term Impacts of Annual Cattle Manure and Fertilizer on Soil Quality Under Corn-Soybean Rotation in Eastern South Dakota
<p>Dairy and beef manure have been used to enhance soil quality; however, their impacts under long-term application in corn-soybean rotation need to be evaluated. Nutrient based recommended rates of manure applications on soils are important and also need to be monitored. This study, therefore, was …
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Organic manure effects on selected soil properties, water use efficiency and grain yield of sunflower
The application of organic manures as alternatives to reduce the use of mineral fertilizers is considered a good agricultural practice for smallholder farmers. However, the effect of organic manure on soil properties and crop yield depends upon its application rate and chemical composition. …
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Impact of Manure Management Practices on the Environmental Fate of Antibiotics in Manure-Applied Fields
… and antibiotic resistance genes from animal manure applied to soil as fertilizer are now among the most concerned contaminants in soil. The widespread use of antibiotics in livestock might amplify the risk of developing antibiotic resistance, causing once treatable diseases to turn deadly. …
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SOIL PHOSPHORUS AND NITROGEN EXPORT AND RETENTION IN RAINFALL RUN-OFF FROM MANURED LANDSCAPES
Rainfall run-off from manured agricultural fields can be high in nitrogen (N) and phosphorus (P) due to excess nutrient application that is unused by crops. This can pose the risk of eutrophication of nearby surface water bodies receiving run-off. The objective of this study was to determine the …
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Soil conditions and early crop growth after repeated manure applications
… and cattle industries has led to an increase of manure application to agricultural lands in Saskatchewan. Studies have been conducted to determine the nutrient benefits of swine manure application. However, a need was also identified for information on the effects of manure application on soil …
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Soil nitrogen, active carbon, corn, and small grain response to manure injection
Manure injection is an alternative manure application method that places manure in subsurface bands rather than spreading it evenly across the soil surface as done with the typical broadcasting method. The reduced exposure of manure to air under injection can lead to greater N retention when …
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Effect of Liquid Manure on Corn and Soybean Growth, Nitrogen Uptake, and Yields
The injection of liquid manure into soils, at rates that should provide sufficient quantities of nitrogen (N), phosphorus (P), and potassium (K) for corn, has resulted in uneven growth and reduced grain yields. Field studies were conducted at Pearl City, Illinois, in 1983 and 1984 to evaluate the …
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Legacy Effects of Long-term Manure Applications on Soil-derived Nitrous Oxide Emissions
Termination of the manure application treatments at the Dixon long-term manure research site in Humboldt, Saskatchewan provided a unique opportunity to explore how a change in management regime to annual urea applications would affect nitrous oxide (N2O) emissions. My hypotheses were that long-term …
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Water Quality Impacts of Cover Crop/Manure Management Systems
… Systems included a rye cover crop and application of liquid dairy manure in the spring and fall. The four management systems were: 1) traditional, 2) double-crop, 3) roll-down, and 4) undercut. In the fourth system, manure was applied below the soil surface during the undercutting …
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The Occurrence and Fate of Steroid Hormones from Manure Amended Agriculture Fields
… sexual development of aquatic organisms. Animal manure applications to agricultural fields for nutrient management can be a source of environmental hormones. This dissertation investigates the occurrence of hormones in fields applied with various manures and their adjacent streams, as well as the …
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Effects of Manure Injection on Transport and Transformation of Nutrient and Antibiotics
Overapplication of manure in sensitive watersheds is an issue of increasing environmental concern due to increased nutrient loading and antibiotic release into aquatic environments. Manure is typically surface applied, leaving nutrients and antibiotics vulnerable to loss at the soil surface. …
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The Comparative Risk of Antimicrobial Resistance Transfer from Pig, Poultry and Bovine Manure to Grassland
… all potential routes of AMR transmission. Manure landspreading introduces bacteria, antibiotic resistance genes (ARGs) and mobile genetic elements (MGEs) into the environment as well as altering the indigenous resistome and microbiome. Grassland consists of ~70% of global agricultural land …
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