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Showing 1 to 20 of 167 for “"nutrient uptake"”.
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Mechanistic modeling of bacterial nutrient uptake strategies
… me to quantify the costs and benefits of various nutrient uptake strategies. I find that: (i) a sensing-uptake trade-off governs E. coli's regulation of maltose uptake and chemotaxis to maltose; (ii) a rate-affinity trade-off in nutrient transport systems governs the speciation of marine …
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Nutrient Uptake Estimates for Woody Species as Described by the NST 3.0, SSAND, and PCATS Mechanistic Nutrient Uptake Models
… the advent of the personal computer, mechanistic nutrient uptake models have become widely used as research and teaching tools in plant and soil science. Three models NST 3.0, SSAND, and PCATS have evolved to represent the current state of the art. There are two major categories of mechanistic …
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Nutrient uptake and partitioning in high-yielding corn
… aimed at matching plant nutritional needs with nutrients from soil and fertilizer sources. These practices, when done sustainably, also include replacing removed nutrients through maintenance fertilizer applications without excess application rates. While fertilizer recommendations and nutrient …
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Linking Heterotrophic Metabolism and Nutrient Uptake in Headwater Streams
… and use of materials, but fundamentally nutrient demand is inherently linked to metabolism based on the stoichiometry of biochemical reactions. The differences between these two groups of organisms confound straightforward regression approaches to quantifying the relationship between …
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Floating Treatment Wetland Nutrient Uptake Efficiency on the Salmon River
… a potential nature-based solution for removing nutrients and other contaminants, yet their effectiveness in the natural environment is uncertain. This study evaluated FTW efficacy on the Salmon River, BC, where downstream algal blooms persist in Shuswap Lake, using three native macrophytes …
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Root-zone temperature effects on the nutrient uptake of horticultural crops
… known about the effects of supraoptimal RZT on nutrient absorption. In my first study, I determined the amount of phosphorus (P), zinc (Zn), and manganese (Mn) in tomato (Lycopersicon esculentum Mill. 'Jet Star'), muskmelon (Cucumis melo L. 'Gold Star'), and thornless honey locust (Gleditsia …
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Effects of Excessive Soil Phosphorus on Pinus taeda L. Nutrient Uptake, Survival, and Growth
… and agronomy research to adversely affect micronutrient uptake in plants causing reduced growth or even mortality, its effects in forestry applications have not been documented, aside from a companion pot study completed by Hannah Bays (2022) in conjunction with this study. This field study …
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Effects of Land Disposal of Pulp Mill Effluents on Plant Nutrient Uptake and Element Balance
… land irrigation with pulp mill effluent has on nutrient uptake and element balance of tree seedlings. Results show that the effluent significantly increased the sodium content of both soil and tissue; however, these levels fell far below the level necessary to become detrimental to plant life, …
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Preparation of brush border and basolateral membrane vesicles from bovine intestine for nutrient uptake studies
… the incubation buffer by filtration. Substrate uptakes were quantified by liquid scintillation counting. Basolateral membrane vesicles were observed to accumulate substrate into an osmotically active space and to have Na⁺-dependent alanine transport capabilities. The use of basolateral and brush …
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Switchgrass Yield, Nutrient Uptake, And Rhizosphere Microbial Community Composition As Affected By Cultivar And Soil Fertility
… and mixed native perennial production and nutrient removal as a function of nitrogen (N) and phosphorus (P) application, harvest regime, and cultivar selection at two contrasting locations in Minnesota. Because bioenergy crop management decisions may alter rhizosphere microbial populations …
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The Effect of Root Distribution on Water and Nutrient Uptake by Soybean Plants Grown in Soil Columns
Made available in DSpace on 2014-12-10T17:12:45Z (GMT). No. of bitstreams: 1 7000957.pdf: 4014119 bytes, checksum: 499301b9285bf68defa93f43a2a51cf8 (MD5) Previous issue date: 1969
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Nutrient uptake and exudation patterns of nitrogenous substances and polyphenols in the kelp Ecklonia Maxima (Osbeck) Papenfuss
… and polyphenol substances, as well as the uptake of nitrate, ammonium and phosphate were studied in the kelp Ecklonia maxima (Phaeophyceae) in ex-situ experiments. It was found that exudation of organic materials only rarely followed a straight accumulatory trend ; fluctuations of …
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Influence of timing of nitrogen application on yield and nutrient uptake of winter wheat (Triticum aestivum L.)
… of indigenous soil N to grain yield and nitrogen uptake. Grain yields were increased by a split application of 134.4 kg N/ha (67.2 at G.S. 3.0 and 67.2 at G.S. 10.5) in 1982. No differences between grain yield for single and split N applications occurred in 1983. Yield levels averaged 6.25 and …
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Belowground Carbon Budget and Nutrient Uptake of Temperate Forest Species in Response to Elevated Carbon Dioxide and Temperature
… proportion of energy for growth and nitrogen-uptake. The reduction in annual total fine root respiration of loblolly pine in elevated CO 2 will result in more carbon being stored belowground.
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Species and functional diversity effects on productivity and nutrient uptake: implications for designing sustainable agricultural systems in the Midwest
<p>Temporal data on aboveground biomass and nutrient uptake by species and functionally diverse native perennial plant species and communities is needed to enhance the performance of in-field buffer conservation practices. Comparisons on the performance of monocultures and polycultures of four …
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Corn Yield, Nutrient Uptake by Corn, Nitrification, and N-Serve Degradation in Soil as Affected by Applied N-Serve and Nitrogen
Made available in DSpace on 2014-12-14T14:37:22Z (GMT). No. of bitstreams: 1 7726767.pdf: 4067441 bytes, checksum: d49c0a70753e0fc1c33e1b456b4c72d5 (MD5) Previous issue date: 1977
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