Characterization of nutrient release and greenhouse gas emission from Chernozemic soils amended with anaerobically digested cattle manure
| dc.contributor.author | Chiyoka, Waraidzo | |
| dc.contributor.examiningcommittee | Hao, Xiying (Soil Science) Gulden, Rob (Plant Science) | en |
| dc.contributor.supervisor | Zvomuya, Francis (Soil Science) | en |
| dc.date.accessioned | 2011-04-20T14:44:51Z | |
| dc.date.available | 2011-04-20T14:44:51Z | |
| dc.date.issued | 2011-04-20T14:44:51Z | |
| dc.degree.discipline | Soil Science | en_US |
| dc.degree.level | Master of Science (M.Sc.) | en_US |
| dc.description.abstract | Two laboratory incubation studies and a growth room bioassay of forage barley were conducted to investigate nitrogen (N) and phosphorus (P) mineralization, and nitrous oxide emission from two contrasting agricultural soils amended with anaerobically digested cattle manure (ADM). The ADM is a nutrient-rich co-product from manure-based biogas plants which is applied to cropland at rates used for raw manure since scientific information on nutrient release from ADM is lacking. Application of the separated solids fraction of ADM (SS) reduced nitrous oxide emission but resulted in lower N mineralization compared to raw manure in both soils. Raw manure- and SS- treatments had similar biomass yields and P supply capacities while the application of pelletized SS (PSS) caused net N immobilization, lower P release than manure and SS, and depressed barley yields relative to non-amended (control) soils. | en |
| dc.description.note | October 2011 | en |
| dc.format.extent | 809670 bytes | |
| dc.format.mimetype | application/pdf | |
| dc.identifier.uri | http://hdl.handle.net/1993/4593 | |
| dc.language.iso | eng | en_US |
| dc.rights | open access | en_US |
| dc.subject | anaerobically digested manure | en |
| dc.subject | separated solids | en |
| dc.subject | pelletized separated solids | en |
| dc.subject | nitrous oxide | en |
| dc.subject | nitrification | en |
| dc.subject | denitrification | en |
| dc.subject | mineralization | en |
| dc.subject | immobilization | en |
| dc.subject | microbial activity | en |
| dc.title | Characterization of nutrient release and greenhouse gas emission from Chernozemic soils amended with anaerobically digested cattle manure | en |
| dc.type | master thesis | en_US |