Hog manure-recovered struvite as a phosphorus source for enhanced phosphorus use efficiency and reduced seedling toxicity in canola
| dc.contributor.author | Katanda, Yeukai | |
| dc.contributor.examiningcommittee | Flaten, Don (Soil Science) Cicek, Nazim (Biosystems Engineering) | en_US |
| dc.contributor.supervisor | Zvomuya, Francis (Soil Science) | en_US |
| dc.date.accessioned | 2014-11-04T19:12:41Z | |
| dc.date.available | 2014-11-04T19:12:41Z | |
| dc.date.issued | 2014-11-04 | |
| dc.degree.discipline | Soil Science | en_US |
| dc.degree.level | Master of Science (M.Sc.) | en_US |
| dc.description.abstract | Hog manure phosphorus (P) can be recovered as struvite or magnesium ammonium phosphate hexahydrate (MgNH4PO4∙6H2O). The recovered struvite has slow-release properties and may be used as a P-source for crops. Two pot experiments were conducted to evaluate the agronomic effectiveness and seedling toxicity of liquid hog manure-recovered struvite for canola (Brassica spp.) and wheat (Triticum aestivum). While wheat was non-responsive to P application, canola dry matter yield (DMY) from struvite (1.9 g kg-1) was similar to that from monoammonium phosphate (MAP) (1.8 g kg-1) and coated-monoammonium phosphate (CMAP) (1.7 g kg-1). Importantly, when P was seed-placed at the higher rate (15 mg kg-1), canola seedling emergence was significantly greater with struvite (90%) and CMAP (85%) than with MAP (60%). The results demonstrate the potential of struvite as an effective P-source for canola in P-deficient soils, which can be safely applied at higher rates than those currently recommended for seed-placed MAP. | en_US |
| dc.description.note | February 2015 | en_US |
| dc.identifier.uri | http://hdl.handle.net/1993/25155 | |
| dc.language.iso | eng | en_US |
| dc.rights | open access | en_US |
| dc.subject | struvite | en_US |
| dc.subject | Brassica napus | en_US |
| dc.subject | phosphorus use efficiency | en_US |
| dc.subject | seedling toxicity | en_US |
| dc.title | Hog manure-recovered struvite as a phosphorus source for enhanced phosphorus use efficiency and reduced seedling toxicity in canola | en_US |
| dc.type | master thesis | en_US |