Liquid hog manure (LHM) obtained from the Macdonald College farm was used in experiments aimed at (a) reducing the odor associated with LHM during handling and (b) conserving the fertilizer capacity of LHM. Various chemical treatments and sphagnum moss (SM) were evaluated to achieve the above objectives. Direct acidification to $<$ pH 5.0, sphagnum moss (SM) and its combination with aluminum sulfate (AS) resulted in significant (p $<$ 0.05) reduction in ammonia losses during storage of LHM. The SM and SM/AS combination also significantly (p $<$ 0.05) reduced both odor presence and offensiveness. Gas chromatographic (GC) and GC/mass spectrometry (GC/MS) analysis indicated the absence of certain malodor compounds and lower peak areas of certain compounds in the SM and SM/AS treatments when compared to the controls. Investigations with barley seeding revealed that treatments which reduced the malodor of the LHM did not significantly (p $<$ 0.05) affect the nitrogen fertilization capacity of the LHM, as indicated by plant dry matter yield.
| Identifer | oai:union.ndltd.org:LACETR/oai:collectionscanada.gc.ca:QMM.59944 |
| Date | January 1991 |
| Creators | Akochi-Koblé, Emmanuel |
| Publisher | McGill University |
| Source Sets | Library and Archives Canada ETDs Repository / Centre d'archives des thèses électroniques de Bibliothèque et Archives Canada |
| Language | English |
| Detected Language | English |
| Type | Electronic Thesis or Dissertation |
| Format | application/pdf |
| Coverage | Master of Science (Department of Food Science and Agricultural Chemistry.) |
| Rights | All items in eScholarship@McGill are protected by copyright with all rights reserved unless otherwise indicated. |
| Relation | alephsysno: 001221882, proquestno: AAIMM67518, Theses scanned by UMI/ProQuest. |
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