Market Integration in the North American Hog Industries
Posted in: Production by admin on January 1, 2004 | No Comments
Sesign of a Manure Handling System for an Air Quality Laboratory in a Swine Barn
Posted in: Environment by admin on | No Comments
Two manure handling systems are currently being tested to determine which system best eliminates all manure contamination from the air in an air qaulity laboratory. Two systems inlcude a washing gutter and a inclined conveyor belt. Both systems can beadjusted to run at various frequencies and are currently being tested to find out how often they need to run to eliminate contamination from the manure. Once the manure handling systems have been optimized to produce minimum contaimination from the manure further testing will be done on other sources of contaminants.
Managing Residue With Manure Application
Posted in: Environment by admin on | No Comments
To meet conservation compliance requirements, a standard of at least 30% residue cover must remain on the soil surface after planting. The type of manure application equipment used can significantly affect the amount of residue cover remaining on soil surface. In this study, residue cover was estimated after the application of liquid manure at four different rates with three different types of manure applicators.
The type of application equipment also had a significant impact on the amount of residue remaining after manure application. Disc-covered manure applicators were more aggressive in overturning soil and residue to cover the applied manure. The shovel incorporator had more visible disturbance due to the shovel mixing of the applied manure with the soil. On the other hand, the slot injector was less disruptive to surface residue because it applies the manure below the soil surface. The rate of manure application had a relatively smaller impact on corn and soybean surface residue cover. However, the rate of manure application can impact residue cover depending on the types of both the manure applicator and crop residue.
Effective manure application and residue management can be combined to improve both soil productivity and environmental quality. The slot injector applicator disturbed the minimum amount of soybean surface residue while applying manure at high rates. Under corn residue, the disc-covered manure applicator left more than 30% residue cover, therefore meeting conservation compliance requirements.
MODIFICATION AND USE OF DRAINMOD TO EVALUATE A LAGOON EFFLUENT LAND APPLICATION SYSTEM
Posted in: Environment by admin on | No Comments
Greenhouse gas emission from NAP-covered earthen manure storage basin
Posted in: Prairie Swine Centre by admin on | No Comments
The objective of a negative air pressure (NAP) cover in reducing greenhouse gas (GHG) emissions from an earthen manure storage basin (EMB). GHG emissions were measured from the same EMB when it was uncovered and covered with chopped straw in 2001, 2002 and 2003, and compared with the emissions from the NAP-covered EMB in 2004. The 2.cell EMB was located at the 600 sow farrow-to-finish operation of PSC Elstow research Farm Inc. near Elstow, Saskatchewan.








