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dc.contributor.supervisor Entz, Martin (Plant Science) en_US
dc.contributor.author Braman, Sarah
dc.date.accessioned 2012-09-24T16:29:11Z
dc.date.available 2012-09-24T16:29:11Z
dc.date.issued 2012-09-24
dc.identifier.uri http://hdl.handle.net/1993/8918
dc.description.abstract The Glenlea long-term study, located in Manitoba was established in 1992 to compare organic, conventional, no-input and restored prairie grass land management practices. Microbial biomass carbon (MBC), microbial metabolic quotient (qCO2), microbial biomass phosphorus, and microbial nitrous oxide quotient (qN2O) were measured to evaluate soil health. MBC and activity were higher in the forage-grain (MBC= 1613 µg-MBC/g-dry soil; qCO2= 0.75 mg CO2-C/g-dry soil/hr) rotation compared to the annual (MBC= 1124 µg-MBC/g-dry soil; qCO2= 0.60 mg CO2-C/g-dry soil/hr). The forage-grain organic system (1718 µg-MBC/g-dry soil) had the highest MBC compared to its conventional (1476 µg-MBC/g-dry soil) counterpart and behaved similarly to the restored grassland prairie (MBC= 1668 µg-MBC/g-dry soil; qCO2= 1.46 mg CO2-C/g-dry soil/hr). Rotation was significant (P<0.0001) for most variables, suggesting rotation has a strong influence on soil microbial characteristics. Agricultural management practices like perennial organic systems, mimic natural prairies and have the greatest capacity to sustain soil microbial life. en_US
dc.subject soil en_US
dc.subject health en_US
dc.subject microbial en_US
dc.subject biomass en_US
dc.subject carbon en_US
dc.subject phosphorus en_US
dc.subject organic en_US
dc.subject prairie en_US
dc.title Soil health after 19 years under organic and conventional agriculture and restored prairie grassland en_US
dc.degree.discipline Plant Science en_US
dc.contributor.examiningcommittee Tenuta, Mario (Soil Science) Stasolla, Claudio (Plant Science) Gulden, Rob (Plant Science) en_US
dc.degree.level Master of Science (M.Sc.) en_US
dc.description.note October 2012 en_US


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