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Prairie Swine Centre is an affiliate of the University of Saskatchewan
Prairie Swine Centre is grateful for the assistance of the George Morris Centre in developing the economics portion of Pork Insight.
Financial support for the Enterprise Model Project and Pork Insight has been provided by:
A Simple Method to Predict Dissolved Phosphorus in Runoff from Surface-Applied Manures
Posted in: Environment by admin on January 1, 2004 | No Comments
Dynamic Comparison of Systems for Irrigation and Effluent Application
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Ammonia Emissions from Irrigation of Dilute Pig Slurries
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Approximately 20% of pig slurry in the UK is applied to land as dilute slurry (o2% dry matter content) via irrigation systems, which may result in larger emissions of ammonia (NH3) to the atmosphere than conventional application techniques. This study aimed to quantify this source under UK conditions and to assess the possibilities foremission abatement using alternative application techniques. Methodology was developed to measure emissions during irrigation, from both raingun- and boom-mounted splashplate systems. Measurements were also made following irrigation at both field- and small-plot scales. Emissions during irrigation of pig slurry to land were small, representing o01–25% of the total ammoniacal N (TAN) applied. Emissions from the land surface following irrigation were also small, typically amounting to only 10% of the TAN applied. Application via trailing hoses (band spreading) gave some reductions in emission for applications to growing crops, but no reduction when used on cereal stubble. Irrigation of dilute pig slurries does not therefore represent a major source of NH3 emission in the UK and, based on the results of this study, replacement of raingun or splashplate irrigation systems with trailing hose booms cannot be recommended as a worthwhile mitigation option.
Manitoba Revises Manure Rules
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Amendments to the Livestock Manure and Mortalities Management Regulation in Manitoba :
– Livestock operations of 300+ animal units will be required to submit test results for samples of water from the source used for livestock
– Existing operations of between 300 and 400 animal units have until 2010 to develop sufficient storage capacity and will not be allowed to winter spread after this date
– Older manure storage facilities built without a permit must now be registered. An application for registration must be submitted to government by July 10, 2004. Non-registered storage facilities cannot be used after July 10, 2010.
– Commercial applicators hired to spread manure must be certified and consultants retained to prepare manure management plans must be professional agrologists or Certified Crop Advisors registered in Manitoba
– Reduced rates of manure application to environmentally sensitive soils.
Other actions taken to date in the overall strategy to enhance land use planning and protection of water quality are:
– The Water Protection Act in March 2004 to protect and conserve Manitoba’s water
– Amendments to the Planning Act in 2004 to improve the process by which municipalities evaluate proposed livestock operations
– The establishment of a Department of Water Stewardship in the fall of 2003
– The Safe Drinking Water Act in August 2002
– The release of Manitoba’s Water Strategy in April 2003
– The establishment of the Office of Drinking Water
– The hiring of 12 new drinking water officers
– Enhanced training programs for operators of water and waste water systems
– The establishment of the Lake Winnipeg Stewardship Board
Suitability of Using “End of Pipe” Systems to Treat Farm Tile Drainage Water
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Hepatitis E viruses in humans and animals
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