Demonstrating Innovative Use of Precision Farming Technologies to Optimize Manure Nutrient Utilization and Reduce Environmental Concerns
January 1, 2005By Dr. Richard Wolkowski
The uniform application of manure is difficult and often leads to questions of available nutrient credits. For these reasons farmers and their consultants often discount the value of these nutrients...
PHOSPHORUS RUNOFF POTENTIAL OF VARYING SOURCES OF MANURE APPLIED TO FESCUE PASTURES IN VIRGINIA
January 1, 2005
The P Index for Virginia uses coefficients describing the risk of P runoff from pastures for different nutrient sources, but these coefficients have not been verified on Virginian soils. An...
Environment - Water Usage / Conservation
Water intake and wastage at nipple drinkers by growing-finishing pigs
January 1, 2005By Y. Z. Li
Three experiments were conducted to assess water intake, water wastage, and a means to decrease water wastage by growing-finishing pigs from nipple drinkers. In Exp. 1, 48 pigs were studied during ...
Laying the Groundwork for Odor Control and Setback Estimation in Nebraska
January 1, 2005By Richard R. Stowell
The goal of this field research study was to validate use of the Odor Footprint Tool (OFT) with livestock building sources in rural communities. The primary objective was to evaluate the accuracy of...
Performance of a Lab-Scale Sequencing Batch Reactor with Addition of Carbon in Removing Nutrient and Organic Matter in Liquid Swine Manure
January 1, 2005By JUN ZHU
The influence of carbon addition on performance of a lab-scale, anaerobic-anoxic-anaerobic-anoxic sequencing batch reactor ((AO)2SBR) in biologically removing nitrogen and organic matter from liquid...
Phosphorous Transformation in Pig Slurry Due to Diet and Continuous Aeration Treatments
January 1, 2005By Samuel K. Baidoo
The experiment was conducted to study the transformation of phosphorus (P) in slurry from pigs fed two different diets, a regular corn soybean meal diet with or without supplementation of 40% ...
Soil extractable phosphorus changes with time after application of fertilizer: II. Manure from swine fed modified diets
January 1, 2005
Little is known about how diet modification and manure amendments affect extractable P in soils, which can be related to runoff P. The objectives of this study were to determine if there were any...
Sorption and desorption of ammonium from liquid swine waste in soils
January 1, 2005By K. Xia
Understanding the sorption and desorption behavior of NH4(+) in soils associated with animal waste is important because of the potential for the formation of NO3(-) and subsequent leaching that...
Extractable Soil Phosphorus and Inorganic Nitrogen following Application of Raw and Anaerobically Digested Swine Manure
January 1, 2005
Processing of swine (Sus scrofa domestica) manure in an anaerobic digester for biogas production is not a complete waste treatment process. Therefore, digested manure must be utilized in some manner,...
Removal of pathogen and indicator microorganisms from liquid swine manure in multi-step biological and chemical treatment
January 1, 2005By Matias B. Vanotti
Concern has greatly increased about the potential for contamination of water, food, and air by pathogens present in manure. We evaluated pathogen reduction in liquid swine manure in a multi-stage...
Movement of lagoon-liquor constituents below four animal-waste lagoons
January 1, 2005By Gary M. Pierzynski
Movement of liquor constituents from animal-waste lagoons has the potential to degrade ground water quality. The depth of movement and concentrations of lagoon-liquor constituents in the soil...
Efficacy of a liquid/solid isolation system for swine manure
January 1, 2005By R. D. von Bernuth
Researchers at Michigan State University (MSU), Institut de Recherche et de Developpement en Agroenvironnement (IRDA) in Quebec, Canada, and Centre de Developpement du Porc du Quebec (CDPQ) in...
