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Nutrient Management
Webcasts
This webcast discusses the level of confidence in predictions on the availability of nitrogen from manure, compost and other organic nutrient sources. The second half is about how/whether we can put an economic value on these sources? The presenters are Dan Sullivan from Oregon State University and Ray Massey from the University of Missouri. This presentation was originally broadcast on March 16, 2007 More...
Video Segments and Power Point Slides
You will need to have Real Player (a free version is available) to access the video segments in this archive. Ray Massey's presentation utilizes Flash Player (already installed on 97% of browsers).
View Entire Presentation (75 minutes)
View Individual Segments:
- Sullivan Decomposition of organic amendments and release of plant-available nitrogen (5 minutes) Power Point Slides
- Sullivan Supplying nitrogen from manure, composts, and specialty products (16 minutes)
- Sullivan Choosing organic amendments (8 minutes)
- Massey Nitrogen availability from organic sources: economics (27 minutes) Power Point Slides
- Question and Answer segment (15 minutes) Written Summary
Continuing Education Units
Certified Crop Advisers (CCA)
CCAs an receive 1 CEU (nutrient management) by viewing the entire presentation and taking the quiz. Visit the CCA continuing education page for additional CEU opportunities.
Note: The CCA program charges a fee to administer CEUs.
American Registry of Professional Animal Scientists (ARPAS)
Members of ARPAS can receive 1 CEU by viewing the entire presentation, complete the evaluation, and contact ARPAS headquarters. Visit the ARPAS continuing education page for additional CEU opportunities.
Additional Resource and Links
- Fertilizing with Manure
- Value of Manure as a Fertilizer.
- Value of Manure spreadsheet click on “Fertilizer Value of Manure Analyzer” to download a zipped file containing the spreadsheet.
- Calculating the Value of Manure as a Fertilizer Source