# Browse Dissertations and Theses - Natural Resources and Environmental Sciences by Subject "Agriculture, Agronomy"

• (2009)
This research investigated the influence of management on indicators of soil quality and nematode community structure in systems transitioning from conventional to organic production. The goal was to improve soil assessment ...

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• (1996)
The research in this thesis is made up of three related experiments, each concerned with nitrate (NO$\sb{3-})$ accumulation and reduction in hydroponically-grown lettuce (Lactuca sativa L.), and its relationship to various ...

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• (1996)
Three independent but interrelated experiments were conducted to investigate the effects of growing media, irrigation systems and NO3-N concentrations on geranium (Pelargonium hortorum) stock plant production cv "Yours ...

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• (2004)
Understanding structural controls over soil organic carbon (SOC) dynamics might improve our ability to predict inconsistent tillage influences on SOC sequestration. This research investigated the influence of soil structure ...

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• (1998)
Aggregation and SOC measures were used to develop a model to simulate the effects of residue placement and physical protection by aggregates on C sequestration. Simulated results were compared against actual C contents; ...

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