animal manure Articles
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Pond fertilization / Aquaculture
Just as fish need good water quality conditions to thrive, they also need an abundant supply of food to grow. We can provide food for our fish in two different ways: We can give them “artificial” feeds that are prepared either commercially or at home, or we can ensure that they have an abundance of natural foods by using fertilizers to increase pond productivity. In either case, it is ...
By Fishward
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Side-band injection of acidified cattle slurry as starter P-fertilization for maize seedlings
Abstract Accumulation of phosphorus (P) in agricultural soils has caused increasing environmental concerns. Maize cropped for fodder implies return of animal manures rich in nutrients. In addition, starter fertilization with mineral P is used in cold conditions for maize cropping. It was hypothesized that the use of the additional mineral P could be excluded by increased availability of the P ...
By Biocover A/S
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Sorption, uptake and biotransformation of 17β‐estradiol, 17α‐ethinylestradiol, zeranol and trenbolone acetate by hybrid poplar
Hormonally active compounds may move with agricultural runoff from fields with applied manure and biosolids into surface waters where they pose a threat to human and environmental health. Riparian zone plants could remove hormonally active compounds from agricultural runoff. Therefore, sorption to roots, uptake, translocation, and transformation of three estrogens (17β‐estradiol, ...
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Regulating the land application of manure from animal production facilities in the USA
Water pollution from the land application of manure has been cited as an issue that needs to be addressed. Judicial challenges have forced the US Environmental Protection Agency (EPA) to adopt additional controls governing concentrated animal feeding operations (CAFOs). State agencies have also been directed to do more to minimize the risk of pollution from animal production. In developing ...
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Effect of tillage and rainfall on transport of manure-applied cryptosporidium parvum oocysts through soil
Received for publication September 30, 2008. Most waterborne outbreaks of cryptosporidiosis have been attributed to agricultural sources due to the high prevalence of Cryptosporidium oocysts in animal wastes and manure spreading on farmlands. No-till, an effective conservation practice, often results in soil having higher water infiltration and percolation rates than conventional tillage. We ...
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Cattle manure application strategies effects on bahiagrass yield, nutritive value, and phosphorus recovery
Animal manure application based on crop N requirements often leaves excess P in the soil because of the differences in the N/P ratio in manures and that required by the plants. This experiment was designed to evaluate the effects of cattle (Bos taurus) manure applied alone or in combination with ammonium nitrate (AN) on bahiagrass (Paspalum notatum Flügge) dry matter (DM) yield, nutritive value, ...
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Cattle manure application strategies effects on bahiagrass yield, nutritive value, and phosphorus recovery
Animal manure application based on crop N requirements often leaves excess P in the soil because of the differences in the N/P ratio in manures and that required by the plants. This experiment was designed to evaluate the effects of cattle (Bos taurus) manure applied alone or in combination with ammonium nitrate (AN) on bahiagrass (Paspalum notatum Flügge) dry matter (DM) yield, nutritive value, ...
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Ammonia volatilization from Urea-based fertilizers applied to tall fescue pastures in Georgia, USA
The use of urea fertilizers in grasslands is likely to increase in areas with concentrated animal feeding operations as restrictions on manure applications are implemented. Concerns have been raised about the economic and environmental impacts of NH3 loss from these urea fertilizers. This study evaluated NH3 losses from Nitamin (a urea polymer), urea–NH4NO3 (UAN), and granular urea applied to ...
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Transport of lincomycin to surface and ground water from manure-amended cropland
Livestock manure containing antimicrobials becomes a possible source of these compounds to surface and ground waters when applied to cropland as a nutrient source. The potential for transport of the veterinary antimicrobial lincomycin to surface waters via surface runoff and to leach to ground water was assessed by monitoring manure-amended soil, simulated rainfall runoff, snowmelt runoff, and ...
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