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Properties of an Orthic Black Chernozem after 5 years of liquid and solid pig manure applications to annual and perennial crops

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dc.contributor.supervisor Akinremi, Wole (Soil Science) en_US
dc.contributor.author Adesanya, Theresa
dc.date.accessioned 2016-01-09T19:40:20Z
dc.date.available 2016-01-09T19:40:20Z
dc.date.issued 2015
dc.identifier.uri http://hdl.handle.net/1993/31011
dc.description.abstract Soil physical and chemical properties determine a soil's crop production potential and the sustainability of a production system. The objective of this study was to determine the effect of solid and liquid pig manure application on the physical and chemical properties of soil after 5 years of manure application. Solid pig manure increased saturated hydraulic conductivity (Ksat) by 110%, aggregate stability by 30%, available and total phosphorus by 471% and 52% respectively, available nitrogen by 38%, organic carbon by 29% and exchangeable K by 308%, and reduced soil bulk density by 14%. Liquid pig manure (LPM) also increased aggregate stability by 21%, exchangeable K by 45%, available P and total P by 258% and 27%, respectively and, reduced bulk density by 6%. An important finding was the 33% decrease in the concentration of exchangeable Ca in LPM-amended soils. Significant manure by cropping system interaction was also obtained for water retention parameters and available water, total nitrogen and electrical conductivity. There was no effect of pig manure on pH and exchangeable Mg concentrations. Soils under perennial vegetation had 31% greater Ksat, 26% increase in available N, 31% greater available P, 15% greater total P and 12% lower bulk density compared with those under annual crops. Our results show that SPM has a potential as a better organic amendment in improving physical and chemical properties of surface soils. en_US
dc.subject Soil science en_US
dc.subject soil physical properties en_US
dc.subject Soil chemical properties en_US
dc.subject Pig manure en_US
dc.title Properties of an Orthic Black Chernozem after 5 years of liquid and solid pig manure applications to annual and perennial crops en_US
dc.degree.discipline Soil Science en_US
dc.contributor.examiningcommittee Zvomuya, Francis (Soil science) Chen, Ying (Biosystems Engineering) en_US
dc.degree.level Master of Science (M.Sc.) en_US
dc.description.note February 2016 en_US


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