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Tesi sul tema "Nitrogen and calcium level"

Autore: Grafiati

Pubblicato: 4 giugno 2021

Ultima modifica: 1 febbraio 2022

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1

Raath, P. J. (. Pieter Johannes). "Effect of varying levels of nitrogen, potassium and calcium nutrition on table grape vine physiology and berry quality." Thesis, Stellenbosch : Stellenbosch University, 2012. http://hdl.handle.net/10019.1/19996.

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Thesis (PhD(Agric))--Stellenbosch University, 2012.<br>ENGLISH ABSTRACT: A lack of defects is required for successful table grape marketing, which pre-suppose optimal vine performance, berry development and post-harvest quality. The supply of mineral nutrients affects vine development, physiology and berry quality. Despite a vast amount of research conducted over decades, there remain many unresolved issues regarding table grape vine nutrition to ensure optimal table grape quality and shelve-life. Unjustified fertilisation practices often include excessive applications of nitrogen (N),

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2

Dobson, Phillip Stephen. "Calcium carbonate crystallisation at the microscopic level." Thesis, University of Warwick, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.252524.

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3

Cai, Yanbing. "Synthesis and Characterization of Nitrogen-rich Calcium α-Sialon Ceramics". Doctoral thesis, Stockholms universitet, Institutionen för fysikalisk kemi, oorganisk kemi och strukturkemi, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-8568.

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In this thesis, a synthesis concept has been developed, which uses nitrogen-rich liquid phases for sintering of Ca-α-sialon ceramics. First, keeping the Si/Al ratios constant, the effects of N/O ratio on the properties and microstructure were investigated through a liquid phase sintering process. Second, nitrogen-rich Ca-α-sialon ceramics, with nominal compositions: CaxSi12-2xAl2xN16, x < 2.0, was synthesized and characterized. Third, mechanical and thermal properties of nitrogen-rich Ca-α-sialons were investigated in terms of high temperature deformation resistance,reaction mechanism, phas

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4

Silveira, Raiza Felismino. "Energy partition and nitrogen utilization by growing goats fed encapsulated calcium nitrate /." Jaboticabal, 2017. http://hdl.handle.net/11449/151442.

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Orientador: Kleber Tomás de Resende<br>Coorientador: Marcia Helena Machado da Rocha Fernandes<br>Banca: Rafael Canonenco de Araújo<br>Banca: Carla Joice Härter<br>Resumo: O nitrato de cálcio encapsulado (NCE) tem sido estudado nos últimos anos como uma fonte de nitrogênio não proteico (NNP) e representa uma alternativa ao uso do hidrogênio livre no ambiente ruminal, reduzindo assim a emissão de metano e possibilitando uma maior eficiência no uso da energia. Assim, o objetivo do presente estudo foi avaliar o uso do nitrato de cálcio encapsulado como substituto do farelo de soja na partição de e

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5

Ouali, Mustapha. "Cationic lipids involved in gene transfer increase intracellular calcium level." Doctoral thesis, Universite Libre de Bruxelles, 2007. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/210739.

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Cationic lipids are efficient tools to introduce nucleic acids and proteins into cells. Elucidation of the mechanism and cellular pathways associated to such a transport has been relatively slow, even though significant progress has been made in the characterization of the intracellular trafficking of cationic lipid/DNA complexes. Surprisingly, little is known about the effects of these delivery vectors on cell functioning. In the present thesis, we show that cationic lipids and cationic lipid/DNA complexes strongly increase the intracellular Ca2+ concentration. The end point of the Ca2+ incre

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6

Moss, James Russell. "Assessment of Vineyard Nitrogen Management upon Grape Chemistry." Thesis, Virginia Tech, 2016. http://hdl.handle.net/10919/78150.

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To combat excessive vine vigor, many vintners have employed intensive cover cropping techniques. While cover crops provide a multitude of benefits to the farming system, they can compete for nutrients and water. The seemingly ubiquitous adoption of cover crops in the Eastern United States has led to vines and grape musts which are deficient in nitrogen (N). A must that is deficient in yeast assimilable nitrogen (YAN) can lead to the production of off aromas and stuck or sluggish fermentations. It has also been suggested that musts with limited amino nitrogen sources can result in wines with le

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7

Akhavan-Kharazian, Mahmood. "Calcium Amelioration of Salinity (Sodicity) on Nitrogen Fixation, Stomatal Resistance, Potassium/Sodium Ratio and Total Nitrogen of Phaseolus vulgaris L." DigitalCommons@USU, 1986. https://digitalcommons.usu.edu/etd/3352.

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Extreme salinity is one of the most common environmental constraints with which legume/rhizobia symbionts must deal in arid and semi-arid regions of the world. In some areas, with good management, it has been economically possible to ameliorate the saline soil with calcium. The objective of this study, therefore, was to investigate calcium amelioration of salinity (sodicity) on nitrogen fixation, stomatal resistance, potassium/sodium ratio, and total nitrogen of Phaseolus vulgaris L. Seeds of snapbeans were grown in pots under green house conditions and were irrigated with NaCl concentrations

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8

Huang, Yuh-Ming. "The effects of precipitation of calcium carbonate on soil pH following urea application." Thesis, University of Oxford, 1990. https://ora.ox.ac.uk/objects/uuid:a81844cb-c0c1-4dd3-a3c5-fc7a1b716021.

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This thesis describes a series of experiments both in solution systems and soil systems to study the precipitation of calcium carbonate in soils and the effects of the precipitation on soil pH after urea had been applied. (1) A gas bubbling system has been established which introduces ammonia at a steady rate to the reaction solution and keeps it equilibrated at 0.00484 atm partial pressure of carbon dioxide. (2) In a non-seeded system, the effects of calcium, urea, Mg (magnesium), P (phosphate), and DOC (water-dissolved organic matter) on the precipitation were examined individually and in va

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9

Ding, Guangwei, and 丁光炜. "Deep level transient spectroscopic study of nitrogen-implanted ZnO single crystal." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2010. http://hub.hku.hk/bib/B45541590.

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10

Hale, Andrea B. "Effects of pH and Calcium Level on Extrusion Textured Whey Protein Products." DigitalCommons@USU, 2000. https://digitalcommons.usu.edu/etd/5478.

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The effects of altering pH and calcium level during whey protein extrusion were assessed by measuring the protein solubility and WHC of the textured whey protein (TWP). TWP samples were produced by extruding dry mixtures of 2/3 WPC 80 (80% protein) and 1/3 cornstarch using screw speed of 200 rpms, feed rate of 23 g/min, water flow rate of 11 g/min, and product temperature of 150°C. The levels of acid and base were adjusted by adding concentrated HCl or NaOH, respectively, to the water source. Calcium was added to the raw mix in the form of calcium chloride dihydrate before extrusion at levels

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11

Elfers, Kristin [Verfasser]. "Effect of dietary nitrogen and/or calcium reduction on intestinal calcium and phosphate absorption and renal water handling in young goats / Kristin Elfers." Hannover : Bibliothek der Tierärztlichen Hochschule Hannover, 2016. http://d-nb.info/1104402904/34.

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12

Hultman, Kristine A. "Process level significance of changes to soil nitrification due to nitrogen enrichment." Thesis, University of Aberdeen, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.424946.

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Our ability to predict and model the consequences of N deposition depends on our understanding of the mechanisms of N cycling. The research detailed in this thesis investigates the impact of enhanced nitrogen loading on nitrification and mineralisation in soils from two contrasting sites in Britain. The first site is Deepsyke Forest, a Sitka spruce plantation situated in the Scottish borders. The second site is Pwllpeiran an upland grass heath in Mid Wales. The stable isotope, <sup>15</sup>N, was used to measure gross mineralisation and nitrification rates at each site. This was used in con

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13

Palizdar, Yahya. "Understanding the effect of aluminium on the microstructure on low level nitrogen steel." Thesis, University of Leeds, 2011. http://etheses.whiterose.ac.uk/1759/.

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Aluminium has been used as a de-oxidant and grain refiner element for more than 100 years, however, the use of aluminium as a deliberate alloying addition in steels has attracted increased attention recently as a possible replacement for Si in Transformation Induced Plasticity (TRIP) steels. Although the effect of substitutional elements such as manganese and chromium has been investigated in detail in the last few decades, there has been little research concerned with the effect of Al as a substitutional element in steel in amounts higher than 0.1 wt%. This could be due to the previous lack o

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14

Daily, Jared Estus. "Two-Photon Ionization of the Calcium 4S3D 1D2 Level in an Optical Dipole Trap." Diss., CLICK HERE for online access, 2005. http://contentdm.lib.byu.edu/ETD/image/etd713.pdf.

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15

Metcalfe, Todd Andrew. "Modeling Farm-Level Costs of the Yield Reserve Program." Thesis, Virginia Tech, 2006. http://hdl.handle.net/10919/44252.

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Nonpoint Source (NPS) pollution, pollution that comes from diffuse sources that are difficult to trace back to a single point such as farm fields, is a major concern affecting America's water ways. Nationally, agriculture is the leading source of water impairment and has also been identified as the largest source of pollution affecting the Chesapeake Bay. There are proposals now for a program that would pay farmers to use 15 percent less than the extension recommended amount of fertilizer. Known as the Yield Reserve Program, or Enhanced Nutrient Management, this policy could possibly help t

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16

Firmenich, Caroline Susanne [Verfasser]. "Effects of dietary nitrogen and / or calcium on renal calcium and phosphate transport and modulation of calcitriol- and IGF1-synthesis in young goats / Caroline Susanne Firmenich." Hannover : Stiftung Tierärztliche Hochschule Hannover, 2019. http://d-nb.info/1189654636/34.

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17

Behling, Shawna Joy. "Effects of nitrogen and calcium on photosynthesis and metabolic activity in Acer saccharum in the Catskill Mountains." College Park, Md.: University of Maryland, 2008. http://hdl.handle.net/1903/8300.

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Thesis (M.S.) -- University of Maryland, College Park, 2008.<br>Thesis research directed by: Dept. of Natural Resource Sciences and Landscape Architecture. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.

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18

Leon, Sandra Porter. "Effects of protein source and calcium level on the utilization of minerals in adult men." Thesis, Virginia Polytechnic Institute and State University, 1988. http://hdl.handle.net/10919/80090.

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The effect of three sources of protein: soy, dairy, and meat protein, and two levels of calcium on zinc, iron, copper, calcium, and magnesium retention in young adult men was determined in a 30-day metabolic balance study. The study was divided into a twenty-day baseline period, a thirty day controlled feeding period from which all the balance data was collected, and a twenty day follow-up period. During the controlled feeding period, twenty-four subjects were randomly assigned to one of three dietary treatment groups which differed in respect to protein source. The dairy treatment group was f

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19

Murphy, John Douglas. "The properties of nitrogen and oxygen in silicon." Thesis, University of Oxford, 2006. http://ora.ox.ac.uk/objects/uuid:d6ff6bba-f9ec-497b-b0f4-2d4162f784cc.

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A novel dislocation locking technique is used to study the behaviour of nitrogen and oxygen in silicon. Specimens containing well-defined arrays of dislocation half-loops are subjected to isothermal anneals of controlled duration, during which nitrogen or oxygen diffuses to the dislocations. The stress required to move the dislocations away from the impurities is then measured. Measurement of this unlocking stress as a function of annealing time and temperature allows information on the transport of nitrogen and oxygen to be deduced. Despite being present in a concentration of just 3E14cm-3 in

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20

Minick, Kevan J. "Microbial Nitrogen Cycling Response to Calcium and Phosphorus in Northern Hardwood Forest Soils at the Hubbard Brook Experimental Forest, New Hampshire." Miami University / OhioLINK, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=miami1259884546.

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21

Moss, James Russell. "Evaluation of Nitrogen Management Schemes in Cover Cropped Vineyards." Thesis, Virginia Tech, 2016. http://hdl.handle.net/10919/80510.

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Vineyards in the Eastern United States are often prone to excessive vegetative growth. In order to suppress excessive vine vigor, many viticulturists have employed cover cropping strategies. Cover crops provide a myriad of agronomic benefits, however they are known to compete with the vine for water and nutrients. Due to the widespread use of cover crops in Eastern vineyards, many vineyards experience nitrogen (N) deficiencies in both the vegetative vine tissue and yeast assimilable nitrogen (YAN) in the juice. Soil applications of calcium nitrate and foliar applications of urea were asses

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22

Fava, Erica. "The effects of the level and timing of nitrogen fertilizer application on red pepper production in Québec /." Thesis, McGill University, 1998. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=20819.

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The use of plastic mulches in producing red bell pepper (Capsicum annuum L.) is relatively new to Quebec and management techniques need to be further developed in terms of nitrogen (N) fertilization as well as insect and disease control. A research project was undertaken in the 1995 and 1996 growing seasons to compare peppers grown on black and on silver mulches, and fertigated using either the conventional method (weekly N-fertigated) or N-fertigated using diagnostic chlorophyll meter readings. Both fertigation treatments resulted in similar yields, although those fertilized according to the

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23

Fava, Erica. "The effects of the level and timing of nitrogen fertilizer application on red pepper production in Quebec." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape10/PQDD_0004/MQ44164.pdf.

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24

Koenig, Vicki C. "Effect of calcium level and source on plasma total and lipoprotein cholesterol in men under controlled dietary conditions." Thesis, Virginia Polytechnic Institute and State University, 1987. http://hdl.handle.net/10919/64565.

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A metabolic study was conducted with 23 men to determine the effects on plasma lipids and lipoproteins of a high calcium intake from two sources compared to a normal level of calcium intake over an eight week controlled feeding period. Three diet treatments were examined: 1) high dietary calcium mainly from dairy sources (1600-1800 mg/day), 2) high dietary calcium supplied by a CaCO₃ supplement (1600-1800 mg/day), and 3) normal dietary calcium intake from mixed sources (600-800 mg/day). Fat, carbohydrate and protein were provided in the ratio of percent kcal as 40:49:11. Nutrient, cholesterol

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25

Kirschbaum, Michael. "A microfluidic approach for the initiation and investigation of surface-mediated signal transduction processes on a single-cell level." Phd thesis, Universität Potsdam, 2009. http://opus.kobv.de/ubp/volltexte/2009/3957/.

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For the elucidation of the dynamics of signal transduction processes that are induced by cellular interactions, defined events along the signal transduction cascade and subsequent activation steps have to be analyzed and then also correlated with each other. This cannot be achieved by ensemble measurements because averaging biological data ignores the variability in timing and response patterns of individual cells and leads to highly blurred results. Instead, only a multi-parameter analysis at a single-cell level is able to exploit the information that is crucially needed for deducing the sign

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26

Mudziwa, Nyengedzeni. "Yield and quality responses of Egyptian white garlic (Allium sativum L.) and wild garlic (Tulbaghia violacea Harv.) to nitrogen nutrition." Diss., University of Pretoria, 2010. http://hdl.handle.net/2263/28945.

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Allium sativum and Tulbaghia violacea are some of the most important medicinal plants used by South African traditional healers for the treatment of flu, fever, cold, tuberculosis, asthma and many more diseases. However, growth, yield and quality are constrained by excessive and under fertilization. This study was carried out to determine, firstly, the effect of N source (ammonium sulphate and calcium nitrate) on yield and quality of A. sativum and T. violacea plants. Secondly, to determine the best season for harvesting T. violacea and lastly, to determine the antifungal effects of A. sativum

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27

Adetunji, Adewole Tomiwa. "Potato and Bambara groundnut ammonium transporter (AMT1) structure and variation in expression level in potato leaf tissue in response to nitrogen form and availability." Thesis, Cape Peninsula University of Technology, 2014. http://hdl.handle.net/20.500.11838/2005.

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Thesis (MTech (Agriculture))--Cape Peninsula University of Technology, 2014.<br>Plants require nitrogen (N) to support desired production levels. Nitrogen fertilization strategy is a major consideration in field management with regard to achieving both economic and environmental objectives. For instance, in potato, insufficient N supply reduces tuber size and overall yield while excessive N supply can reduce tuber quality and increase environmental risk through nitrate (NO3-) leaching and nitrous oxide emission. Selection of an adequate N fertilizer application rate for crops is difficult, due

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28

Liu, Haijun. "Effect of reducing dietary protein level and adding amino acids on performance, carcass characteristics, and nitrogen excretion of finishing pigs /." free to MU campus, to others for purchase, 2000. http://wwwlib.umi.com/cr/mo/fullcit?p9999303.

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29

Bufton, Hywel Rhys. "A pharmacological study of voltage-sensitive calcium channels, 5-hydroxytryptamine receptors and kainate receptors at the spinal level in the rat." Thesis, University of Bristol, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.388015.

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30

Rawahy, Salim Ali 1951. "EFFECT OF SODIUM-CHLORIDE, SODIUM-SULFATE AND CALCIUM-CHLORIDE SALTS ON NITROGEN AND PHOSPHORUS UPTAKE BY TOMATO PLANTS (SALINITY, OSMOTIC PRESSURE, SPECIFIC ION EFFECT)." Thesis, The University of Arizona, 1986. http://hdl.handle.net/10150/275527.

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31

Munasinghe, Prinith Sumudu. "Effects of atmospheric acid deposition and single versus mixed leaf litters on foliar litter decomposition, carbon, nitrogen, phosphorus and calcium dynamics in a regenerating forest." Morgantown, W. Va. : [West Virginia University Libraries], 2008. https://eidr.wvu.edu/etd/documentdata.eTD?documentid=5769.

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Thesis (M.S.)--West Virginia University, 2008.<br>Title from document title page. Document formatted into pages; contains vi, 131 p. : ill. (some col.). Includes abstract. Includes bibliographical references.

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32

León, Titichoca Gustavo Adolfo. "Determination of the nutritional level of calcium and phosphorus in llamas (Lama glama) in two seasons in the Condoriri Agricultural Experiment Center." BYU ScholarsArchive, 2004. https://scholarsarchive.byu.edu/etd/5383.

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The concentrations of calcium and phosphorus were determined in 12 llamas from the Condoriri Agricultural Experiment Center (Oruro Technical University) of Oruro, Bolivia during two seasons (wet and dry) and at three ages (newborn, juvenile, and adult). Samples of flesh were taken from the arm, leg, back, rib, and neck. Pasture samples (grassland and prairie) were used to determine the rate of biting of each animal studied. The blood samples were taken by extracting blood from a jugular vein. The minerals (Ca and P) in the flesh are highest in the wet season, 113.78 mg/100 g. The newborns were

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33

Craig, Michael T. (Michael Timothy). "Reducing the contribution of the power sector to ground-level ozone pollution : an assessment of time-differentiated pricing of nitrogen oxide emissions." Thesis, Massachusetts Institute of Technology, 2014. http://hdl.handle.net/1721.1/90030.

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Thesis: S.M. in Technology and Policy, Massachusetts Institute of Technology, Engineering Systems Division, Technology and Policy Program, 2014.<br>Title as it appears in MIT commencement exercises program, June 2014: Reducing the contribution of the power sector to peak concentrations of ground-level ozone: an assessment of time-differentiated pricing of nitrogen oxide emissions. Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 95-102).<br>Nitrogen oxide (NOx) is a prevalent air pollutant across the United States and a requisite precursor for tropospheric (g

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34

Hayes, Deborah Nicola. "Effects of dietary protein level and source on milk production, nitrogen and energy utilisation and methane emissions of zero-grazed dairy cows." Thesis, Queen's University Belfast, 2016. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.707232.

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This thesis details a series of studies to evaluate the effects of different dietary treatments on production performance and N utilisation in lactating dairy cows, with a particular emphasis on urinary N excretion. Firstly a digestibility trial was performed to investigate the effect of concentrate crude protein (CP) content (14.1, 16.1 and 18.1% CP) and cow genotype (Holstein vs Holstein x Swedish Red) on N and energy utilisation, nutrient digestibility, methane emissions and milk production. Reducing concentrate CP content decreased urinary and milk urea N outputs, without negatively effect

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35

Ragnarsson, Sveinn. "Digestibility and metabolism in icelandic horses fed forage-only diets /." Uppsala : Department of Animal Nutrition and Management, Swedish University of Agricultural Sciences, 2009. http://epsilon.slu.se/200992.pdf.

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Peck, Leslie Kathryn. "Pre- and Postharvest Practices for Optimizing the Postharvest Quality of Cut Sunflower, Dahlia, and Delphinium." Thesis, Virginia Tech, 2016. http://hdl.handle.net/10919/73589.

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The primary objective of this research was to identify practices by which specialty cut flower growers can extend the vase life of cut delphinium, sunflower, and dahlia. Experiments investigated the effects of nitrogen fertilization rate on delphinium 'Guardian Mix' and the effects of deficit irrigation on delphinium 'Guardian Blue.' 'Guardian Mix' plants produced marketable cut stems at nitrogen rates as low as 50 mg/L. Deficit irrigation did not change vase life, stomatal conductance, or transpiration rates of delphinium 'Guardian Blue.' Studies tested the effects of foliar calcium applic

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Mitsova-Boneva, Diana. "Modeling the Impact of Land Cover Change on Non-point Source Nitrogen Inputs to Streams at a Watershed Level: Implications for Regional Planning." Cincinnati, Ohio : University of Cincinnati, 2008. http://rave.ohiolink.edu/etdc/view.cgi?acc_num=ucin1218830340.

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Thesis (Ph.D.)--University of Cincinnati, 2008.<br>Advisor: Xinhao Wang PhD (Committee Chair), David Edelman PhD (Committee Member), Jan Fritz PhD (Committee Member), William Shuster PhD (Committee Member). Title from electronic thesis title page (viewed Apr. 18, 2010). Keywords: Land cover change; cellular automata; TN loading model; non-linear regression; open space conservation network. Includes abstract. Includes bibliographical references.

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Rocha, Raimundo José de Sousa [UNESP]. "Adubação nitrogenada em milho em semeadura direta e cultivo convencional na região Meio-Norte do Piauí." Universidade Estadual Paulista (UNESP), 2010. http://hdl.handle.net/11449/105241.

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Made available in DSpace on 2014-06-11T19:33:39Z (GMT). No. of bitstreams: 0 Previous issue date: 2010-07-13Bitstream added on 2014-06-13T19:04:51Z : No. of bitstreams: 1 rocha_rjs_dr_jabo.pdf: 825439 bytes, checksum: 2af7dcdaa1a7cdb8311729451dfa2d74 (MD5)<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)<br>O nitrogênio é nutriente absorvido em maiores quantidades na cultura do milho e o que proporciona maiores produtividades de grãos, sendo seu uso no sistema solo-planta alterado pelo sistema de cultivo utilizado. Com o objetivo de avaliar o efeito de sistemas de culti

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Mancera, Gonzalez Rafael. "Uncertainty in Simulated Fluxes and Physical Conditions of Two North European Wetlands." Thesis, KTH, Mark- och vattenteknik, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-96293.

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There is an extended concern for how to quantify the fluxes of greenhouse gasses (GHG) and how they are related to climate change and land use. Efforts have already been done, mostly regarding carbon (C) compounds, but there is still much to be done especially to understand regulating factors and interactions with the Nitrogen cycle. NitroEurope is a large project for the integrated European research into the N cycle. This study shares its aim, to improve the understanding the physics involved in the fluxes of the reactive N (Nr). More specifically, the patterns of some physical and biological

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40

Kulkarni, Aniket [Verfasser], and Martin [Akademischer Betreuer] Jansen. "Structure prediction of lithium, calcium carbide, and (per)nitride compounds at ambient and high pressure on the ab-initio level / Aniket Kulkarni. Betreuer: Martin Jansen." Stuttgart : Universitätsbibliothek der Universität Stuttgart, 2012. http://d-nb.info/102604328X/34.

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Arroquy, Jose Ignacio. "Effect of source of supplemental carbohydrate as well as source and level of supplemental rumen degradable nitrogen on low-quality forage utilzation by beef cattle /." Search for this dissertation online, 2003. http://wwwlib.umi.com/cr/ksu/main.

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Karapinar, Burcu. "Role Of Hydrology, Sewage Effluent Diversion And Fish On Mass Balance Of Nutrients In A System Of Shallow Lakes Mogan And Eymir, Turkey." Master's thesis, METU, 2005. http://etd.lib.metu.edu.tr/upload/12606542/index.pdf.

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In this study, annual total phosphorus (TP) budget and dissolved inorganic nitrogen (DIN) load were constructed for Lakes Mogan and Eymir for the period of eight years from 1997 to 2004 and the period of ten years covering from 1993 to 1995 and 1997 to 2004, respectively. Lake Mogan experienced seasonal and interannual water level fluctuations. Low water level experienced in 2001 led to decrease in the in-lake TP amount whereas 2-fold increase in the in-lake DIN amount was recorded. Also, high hydraulic residence time resulted in high TP and DIN amount in the lake. Increase in hydraulic reside

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43

Tarvainen, O. (Oili). "Scots pine and its ectomycorrhizal symbionts under chronic low-level urban pollution—responses and restoration." Doctoral thesis, University of Oulu, 2009. http://urn.fi/urn:isbn:9789514260629.

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Abstract Boreal urban forests are becoming more and more fragmented and, at the same time, are exposed to low-level but long-term nitrogen and sulphur deposition. Natural mid-boreal forests are dominated by few tree and shrub species, while herbs and grasses are rare. Soils in mid-boreal forests are rich in ectomycorrhizal (ECM) fungi, forming a symbiotic relationship with forest trees, which is important for the nutrient cycle especially in nutrient-poor ecosystems. Aims of this thesis were 1) to study differences between mid-boreal urban and rural forests in composition of macrofungi and s

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44

Mamudu, Hadii M., Antwan Jones, Timir Paul, Pooja Subedi, Liang Wang, Arsham Alamian, Ali E. Alamin, Gerald Blackwell, and Matthew Budoff. "Geographic and Individual Correlates of Subclinical Atherosclerosis in Asymptomatic Rural Appalachian Population." Digital Commons @ East Tennessee State University, 2017. https://dc.etsu.edu/etsu-works/1377.

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Objective: To examine the association between subclinical atherosclerosis (ascertained as coronary artery calcium; CAC) in asymptomatic individuals in the Central Appalachian region of the United States and individual- and geographic-level factors. Methods: Data were obtained from participants in CAC screening during 2012 and 2016. CAC score was assessed as CAC=0 (no plaque), 1≤CAC≤99 (mild plaque), 100≤CAC≤399 (moderate plaque), and CAC≥400 (severe plaque). Additionally, data on demographics (age, sex, and race), medical conditions, lifestyle factors, and family history of coronary artery dis

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45

Rocha, Raimundo José de Sousa. "Adubação nitrogenada em milho em semeadura direta e cultivo convencional na região Meio-Norte do Piauí /." Jaboticabal : [s.n.], 2010. http://hdl.handle.net/11449/105241.

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Resumo: O nitrogênio é nutriente absorvido em maiores quantidades na cultura do milho e o que proporciona maiores produtividades de grãos, sendo seu uso no sistema solo-planta alterado pelo sistema de cultivo utilizado. Com o objetivo de avaliar o efeito de sistemas de cultivo e doses de nitrogênio na produção de matéria seca, nitrogênio na planta, nitrogênio foliar, produtividade de grãos e eficiência do nitrogênio no milho, foi implantado experimento de campo nos anos de 2008 e 2009, em um Argissolo Vermelho-Amarelo, distrófico, sob irrigação. Utilizou-se o delineamento experimental em parce

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46

Hahn, George Eugene III. "Wildland Fire in the Central Appalachian Mountains: Impacts on Above- and Belowground Resources." Diss., Virginia Tech, 2021. http://hdl.handle.net/10919/102606.

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Prescribed fire use in Virginia and West Virginia has increased over the past ten years as forest managers on public lands have increasingly used prescribed fire to meet management goals. These goals include hazardous fuel reduction, wildlife habitat restoration and management, and control of less desired vegetation. Research is needed to better understand the effects of wildland fire on forest ecosystems. In this study, we addressed wildland fire's effects on water, vegetation, and soil resources in the central Appalachian Region. Moreover, the long-term efficacy of various types of timber ha

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47

Mainolfi, Maria B. "Low Level Exposure to Air Pollution and Risk of Adverse Birth Outcomes in Hillsborough County, Florida." Scholar Commons, 2012. http://scholarcommons.usf.edu/etd/4140.

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In this retrospective cohort from 2002 through 2007, 104,003 singleton live births in Hillsborough County, Florida were analyzed to elucidate the relationship between feto-infant morbidity outcomes and prenatal exposure to six criteria air pollutants. This study is based on three linked databases: The Florida Hospital Discharge database; The vital statistics records of singleton live births; Air Pollution meteorological data from the Environmental Protection Agency. There are six common air pollutants, particulate matter 2.5 (PM2.5), particulate matter 10 (PM10), ground-level ozone (O3), carb

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48

Fonseca, Ivana Machado [UNESP]. "Atributos químicos do solo, nutrição e produtividade da cana-planta em função da aplicação de nitrogênio e de escória de siderurgia." Universidade Estadual Paulista (UNESP), 2011. http://hdl.handle.net/11449/105207.

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Made available in DSpace on 2014-06-11T19:33:38Z (GMT). No. of bitstreams: 0 Previous issue date: 2011-11-01Bitstream added on 2014-06-13T19:23:51Z : No. of bitstreams: 1 fonseca_im_dr_jabo.pdf: 887619 bytes, checksum: 496442407236f6e4d0dd60cbc133778e (MD5)<br>Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)<br>Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)<br>Os tecidos vegetais tendem a ficar mais tenros em sistemas de produção onde maior fertilização com nitrogênio (N) é exigida, favorecendo o auto-sombreamento das plantas; entretanto, com aplicação de s

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49

Xuclà, Tarrés Francisco. "La calidad de las manzanas golden smoothe en respuesta a las estrategias de aplicación de nitrogeno y calcio, combinado con el efecto del 1-metilciclopropeno." Doctoral thesis, Universitat de Lleida, 2013. http://hdl.handle.net/10803/108504.

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En un assaig de tres anys amb pomes Golden Smoothee, cultivades a Gimenells (Lleida), es van realitzar diferents estratègies d'aplicació de calci sobre els fruits, combinades amb dues dosis d'abonat nitrogenat. Es van comparar els fruits de Gimenells amb els d'una finca de Pina d'Ebre (Saragossa), on també es va aplicar en totes dues el producte 1-MCP. Realitzant aplicacions de calci precollita, es va aconseguir incrementar els nivells d'aquest nutrient a les pomes, i caldrà aconseguir uns continguts mínims per obtenir una bona qualitat en collita i després de la seva conservació, aconseguint

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50

Kanashiro, Shoey. "Nitrogênio, fósforo, potássio, cálcio e o crescimento de plântulas de Aechmea blanchetiana (Baker) L.B.Smith in Vitro." Universidade de São Paulo, 2005. http://www.teses.usp.br/teses/disponiveis/11/11136/tde-16062005-141300/.

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Plântulas obtidas a partir de germinação de sementes in vitro da bromélia Aechmea blanchetiana foram cultivadas em meio líquido para o estudo do crescimento em diferentes concentrações de nitrogênio (7,5; 15; 30; 60 e 120 mM.L-1), fósforo (0,15; 0,30; 0,60; 1,25 e 2,50 mM.L-1), potássio (2,5; 5; 10; 20 e 40 mM.L-1) e cálcio (1,5; 3; 4,5; 6 e 12 mM.L-1). As plântulas foram cultivadas sob 93 µmol.m-2.s-1 de radiação fotossinteticamente ativa, sob fotoperíodo de 12 horas e temperatura de 25oC ± 1, durante 120 dias e subcultivos a cada 30 dias. As concentrações dos nutrientes foram formuladas c

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