Chemical characterization of phosphate diffusion in a multi-ionic environment
| dc.contributor.author | Olatuyi, Solomon Olalekan | |
| dc.contributor.examiningcommittee | Flaten, Don (Soil Science) Hunter, Norman (Chemistry) | en |
| dc.contributor.supervisor | Akinremi, O. Oluwole (Soil Science) | en |
| dc.date.accessioned | 2006-09-12T19:02:01Z | |
| dc.date.available | 2006-09-12T19:02:01Z | |
| dc.date.issued | 2007-09-12T19:02:01Z | |
| dc.degree.discipline | Soil Science | en_US |
| dc.degree.level | Master of Science (M.Sc.) | en_US |
| dc.description.abstract | Low phosphate fertilizer efficiency in high pH soils is primarily due to the retardation of P movement in the soil-P fertilizer reaction zone. The objective of this study was to obtain fundamental information on the influence of multi-ionic interactions on the solubility and diffusion of P in columns containing a model soil system and two soil types. The study also aimed to identify the salt combinations and factors that have the potential to enhance the solubility and movement of P in calcareous soil condition. The results showed that the interaction of NH4+ and SO42- was consistent at enhancing the water solubility and movement of P under a high soil pH condition. This effect was attributed to the combination of various mechanistic factors associated with (NH4)2SO4 compound including significant pH reduction, cation exchange reaction of NH4+ with the exchangeable Ca2+, and anionic competition of SO42- with P for precipitation with Ca2+. | en |
| dc.description.note | October 2006 | en |
| dc.format.extent | 1485715 bytes | |
| dc.format.mimetype | application/pdf | |
| dc.identifier.uri | http://hdl.handle.net/1993/277 | |
| dc.language.iso | eng | en_US |
| dc.rights | open access | en_US |
| dc.subject | phosphate | en |
| dc.subject | diffusion | en |
| dc.subject | precipitation | en |
| dc.subject | solubility | en |
| dc.subject | resin | en |
| dc.subject | columns | en |
| dc.title | Chemical characterization of phosphate diffusion in a multi-ionic environment | en |
| dc.type | master thesis | en_US |