Slurry-application implement tine modification of soil hydraulic properties under different soil water content conditions for silt-clay loam soils
January 1, 2007By K.M. Turpin Eastern Cereal|Oilseed Research Centre
Tillage action associated with liquid slurry application systems/management practices can modify soil infiltration properties. The degree or nature of such modification will depend largely on the...
Nutrient losses from manure and fertilizer applications as impacted by time to first runoff event
January 1, 2007By D.R. Smith USDA-ARS
Nutrient losses to surface waters following fertilization contribute to eutrophication. This study was conducted to compare the impacts of fertilization with inorganic fertilizer, swine (Sus scrofa...
Dissolved organic carbon in runoff and tile-drain water under corn and forage fertilized with hog manure
January 1, 2007By Crops Research and Development Centre|I. Royer Soils
Dissolved organic carbon (DOC) export from soils can play a significant role in soil C cycling and in nutrient and pollutant transport. However, information about DOC losses from agricultural soils...
Influence of slope position and hog manure injection on fall soil P and N distribution in an undulating landscape
January 1, 2007By Sumith K. R. Priyashantha
Investigation of how soil nutrients are distributed over the landscape in the fall is a prerequisite to identify critical source areas (CSA), which contribute soil nutrients to surface waters through...
Crop residue effects on runoff nutrient concentrations following manure application
January 1, 2007By John E. Gilley
Manure is applied to cropland areas managed under diverse conditions, resulting in varying amounts of residue cover. The objective of this study was to measure the effects of crop residue on nutrient...
Use of swine manure to improve solid-state fermentation in an integrated storage and conversion system for corn stover
January 1, 2007By Patrick T. Murphy
Swine manure contains a host of chemical and biological constituents which make it desirable for amending lignocellulosic biomass in storage for year round processing in a biorefinery. Application of...
The fate of crop nutrients during digestion of swine manure in psychrophilic anaerobic sequencing batch reactors
January 1, 2007By D.I. Masse Dairy and Swine Research and Development Centre
The objectives of the study were to measure the levels of manure nutrients retained in psychrophilic anaerobic sequencing batch reactors (PASBRs) digesting swine manure, and to determine the...
Full-scale sequencing batch reactor system for swine wastewater treatment
January 1, 2007By Dr. Kwang Victor Lo
A full-scale sequencing batch reactor (SBR) system was evaluated for its ability to remove carbon and nitrogen from swine wastewater. The SBR was operated on four, six-hour cycles each day, with each...
Agronomic effectiveness of calcium phosphate recovered from liquid swine manure
January 1, 2007By Philip J. Bauer USDA-ARS Coastal Plains Soil
A new manure treatment technology developed as an alternative to anaerobic lagoons on swine (Sus scrofa domesticus) farms includes solid-liquid separation and subsequent recovery of soluble P as...
Soil microbial community composition and structure: residual effects of contrasting N fertilization of swine lagoon effluent versus ammonium nitrate
January 1, 2007By K. Iyyemperumal and W. Shi
Land application of swine lagoon effluent (SLE) often changes soil pH and the concentrations of nutrients and trace metals. We hypothesize that fertilization-associated alteration in soil properties...
Using a chemical equilibrium model to predict amendments required to precipitate phosphorus as struvite in liquid swine manure
January 1, 2007By Buchanan
Precipitation of phosphate minerals from liquid swine manure is an established means of
reducing the orthophosphate (OP) concentration. This project investigated the usefulness
of a chemical...
Effect of potassium inhibition on the thermophilic anaerobic digestion of swine waste
January 1, 2007By Chen
The inhibition effects of high potassium concentration on thermophilic anaerobic digestion of swine waste were studied. A continuous stirred tank reactor (CSTR), operated at a hydraulic retention...
