Effect of seed-placed phosphorus and sulphur fertilizers on canola plant stand, early season biomass and seed yield

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dc.contributor.authorGrenkow, Laryssa
dc.contributor.examiningcommitteeGrant, Cynthia (Soil Science) Gulden, Robert (Plant Science)en_US
dc.contributor.supervisorFlaten, Don (Soil Science)en_US
dc.date.accessioned2013-09-10T16:13:23Z
dc.date.available2013-09-10T16:13:23Z
dc.date.issued2013-09-10
dc.degree.disciplineSoil Scienceen_US
dc.degree.levelMaster of Science (M.Sc.)en_US
dc.description.abstractSeed-placed phosphorus (P) and sulphur (S) fertilizers can reduce canola plant stands. Field studies were conducted to determine the effect of various sources and rates of seed-placed P and S fertilizers on canola plant stand, early season biomass accumulation and seed yield. Conventional granular P and S blends increased the risk of seedling damage, but increased the frequency of yield response. Liquid fertilizers were similar in seedling damage but generally less effective in increasing seed yield compared to granular fertilizers. Novel fertilizers were more seed-safe but less reliable than conventional sources in increasing seed yield. A growth room experiment was conducted to determine the effect of soils from different landscape positions on the toxicity of seed-placed ammonium sulphate (AS) and monoammonium phosphate (MAP). Canola emergence was reduced and delayed by seed-placed MAP and AS. Ammonium sulphate in particular has a high risk of NH3 toxicity on calcareous hilltop soilsen_US
dc.description.noteOctober 2013en_US
dc.identifier.urihttp://hdl.handle.net/1993/22150
dc.language.isoengen_US
dc.rightsopen accessen_US
dc.subjectCanola (Brassica napus)en_US
dc.subjectphosphorusen_US
dc.subjectsulphuren_US
dc.subjectplant standen_US
dc.subjectearly season biomassen_US
dc.subjectseed yielden_US
dc.titleEffect of seed-placed phosphorus and sulphur fertilizers on canola plant stand, early season biomass and seed yielden_US
dc.typemaster thesisen_US
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