Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 6 of 6 for “"root proliferation"”.
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Factors affecting root system response to nutrient heterogeneity in forested wetland ecosystems
… can respond by selectively proliferating their roots within nutrient-rich patches. However, many environmental factors may increase or decrease the degree of root proliferation by plants. I explored how soil fertility, nitrogen (N) or phosphorus (P) limitation, and soil oxygen availability …
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Impact of nutrient heterogeneity on plant response and competition in Coastal plain species
Relationships between nutrient heterogeneity, root foraging behavior and short-term competitive interactions were investigated for six species native to southeastern USA. Monoculture, two- and six-species garden plots were established and fertilized to create spatially homogeneous or heterogeneous …
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A tripartite study on Bayesian estimation of photosynthetically active radiation, impacts of future climate, and adaptation strategies on crop production: a spatial model framework for the Eastern Kansas River Basin
… the impacts of future climate conditions and root proliferation adaptation strategy on rainfed maize production; (2) develop a fine-scale spatial protocol for quantifying climate change impacts on maize productivity under different irrigation management strategies; (3) improve irrigated maize …
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Trophic dynamics in the fine-root based food web: integrating resource heterogeneity, root herbivores, and root foraging
… We know that plant species differ in their root responses to nutrient patches and that these differences in foraging can influence plant competition. However, most studies of root-resource interactions overlook the potential top-down influence of root herbivores. While root herbivores can …
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Functional role of plant water fluxes in nutrient acquisition
… with N placed at one of six distances behind a root-impenetrable mesh whilst control plants intercepted the N-source. In plants forced to acquire N through mass-flow transpiration rates were 2.9-fold higher and P and K accumulation was greater compared to control plants. The contribution of …
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Strip-till and no-till soybean growth and distribution of roots and soil phosphorus, potassium, and water with broadcast and subsurface-band fertilization
… placement on soybean [Glycine max (L.) Merr.] root distribution, shoot growth and nutrient accumulation, seed yield and seed composition; and to quantify treatment effects on the distribution of P, K, and water in the soil. A three-year field experiment was conducted in Champaign, Illinois on …