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1

Farr, C. R. "Nitrogen Stabilizer Effect on Nitrate Nitrogen Management in Soils." College of Agriculture, University of Arizona (Tucson, AZ), 1987. http://hdl.handle.net/10150/204454.

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2

Zhou, Maoqian 1961. "Nitrogen fixation by alfalfa as affected by salt stress and nitrogen levels." Thesis, The University of Arizona, 1989. http://hdl.handle.net/10150/277231.

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The growth and Nitrogen fixation by one low salt tolerant alfalfa (Medicago sativa L.) and two germination salt tolerant selections inoculated with were investigated at two salt levels (0, -0.6 Mpa) and two N rates (1, 5ppm) using a system which automatically recirculates a nutrient solution. The high level of salinity (-0.6 Mpa osmotic potential of culture solution) resulted in substantial reduction in the N fixation percentage and total fixed N. The effect of salinity was more pronounced for later cuttings than for the earlier cutting. The N fixation percentages were substantially decreased

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3

Haig, Paul Andrew. "Effect of dietary nitrogen solubility on nitrogen losses from lactating dairy cows." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp01/MQ43169.pdf.

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4

Bhogal, Anne. "Effect of long-term nitrogen applications on nitrogen cycling under continuous wheat." Thesis, University of Nottingham, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.294731.

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5

Saunders, Eleanor Margaret. "The effect of mineral nitrogen on ectomycorrhizas with special reference to nitrogen deposition." Thesis, University of Sheffield, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.299547.

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6

Cepeda, Jose de los Angeles 1955. "Nitrogen fixation by alfalfa as affected by osmotic potentials and measured by nitrogen-15 techniques." Thesis, The University of Arizona, 1987. http://hdl.handle.net/10150/276591.

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One low salt tolerant alfalfa (Medicago sativa L.) cultivar and two germination salt tolerant alfalfa selections were compared for growth and N fixation at four salinity levels (0, -0.3, -0.6 and -1.2 Mpa). In the first experiment a Hoagland's solution at 5 ppm-N was used; in the second experiment the solution had a 1 ppm-N concentration and supplemental light was used. No significant differences were found among the cultivars. This provides additional support that germination salt tolerance is not necessarily related to salt tolerance for growth. Nitrogen fixed to the first harvest was 61, 48

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7

Ippersiel, Denis. "The effect of foliar nitrogen fertilization on nitrogen distribution, yield and protein quality of forage corn /." Thesis, McGill University, 1986. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=63798.

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8

Papadopoulos, Anastasios K. "Nitrogen and moisture distributions under subirrigated soybeans." Thesis, McGill University, 1994. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=55520.

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A field lysimeter experiment was conducted on a sandy loam soil during the 1990 and 1991 growing seasons. The experiment tested the effects of different watertables on soybean yields, and on moisture distribution and nitrogen concentration of the soil profile. The watertable depths were 40, 60, 80, and 100 centimeters (cm).<br>Yields were measured in terms of number of beans per plant, number of pods per plant, number of beans per pod, and seed protein content at harvest.<br>Soil samples collected at depths of 30 and 70 cm from the soil surface were analyzed for moisture content and NO$ sb3 sp

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9

Denton, Bethany L. "Effect of Orange Peels on Nitrogen Efficiency in Ruminants." The Ohio State University, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=osu1471877758.

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10

Choudhury, D. "The effect of honeydew on leaf-litter decomposition, soil non-symbiotic nitrogen fixation and nitrogen mineralization." Thesis, University of Oxford, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.376903.

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11

Van, Wijk Kim. "The effect of organic carbon and nitrogen additions on inorganic nitrogen uptake by phytoplankton and bacteria." Master's thesis, University of Cape Town, 1991. http://hdl.handle.net/11427/18342.

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Bibliography: pages 76-89.<br>This study examines the effects of enrichment with organic carbon and nitrogen on inorganic nitrogen partitioning between phyto- and bacterio- plankton. Strongly preferential uptake of ammonium over nitrate was observed by both the phytoplanktonic and bacterial fractions, with RPINH4 values typically between 1 and 5. The bacterial fraction ( <0.8μm) was found to be responsible for as much as 48-75% of community uptake of ammonium; while the netplanktonic fraction was observed to take up approximately 50% of intact community uptake of nitrate. The addition of amino

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12

Jackson, Brian A. "Nitrogen mineralization of incorporated bahiagrass sod and its effect on nitrogen uptake and yield of maize." [Gainesville, Fla.] : University of Florida, 2003. http://purl.fcla.edu/fcla/etd/UFE0001441.

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13

Green, Emma Rachel. "The effect of nitrogen deposition on Lowland heath ecosystem." Thesis, Imperial College London, 2006. http://hdl.handle.net/10044/1/11421.

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14

Foroutan-Pour, Kayhan. "Aspects of barley post-anthesis nitrogen physiology." Thesis, McGill University, 1994. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=22730.

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The protein concentration of cereal grains is low and the production of cereal crops with increased grain protein concentrations is desirable. This work investigates the physiological aspects of protein accumulation potential in barley grain. A recently developed perfusion system was used in four experiments conducted in 1993 and 1994. In the field experiment, plants were allowed to take up urea at 15 or 30 mM N, or ethephon at 15 $ mu$ M. Abscisic acid and 2,4-D decreased total seed weight spike$ sp{-1}$. Gibberellic acid and 2,4-D increased seed protein concentration and content, while ABA d

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15

TOKOROYAMA, Takayuki, and Noritsugu UMEHARA. "Effect of nitrogen atoms included in CNx coatings on friction sliding against Si3N4 ball in nitrogen gas." IEEE, 2007. http://hdl.handle.net/2237/9456.

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16

Ottman, Michael J., Duarte E. Diaz, Michael D. Sheedy, and Richard W. Ward. "Nitrogen Fertilizer Rate Effect on Forage Sorghum Yield, Quality, and Tissue Nitrogen Concentrations at Maricopa, AZ, 2015." College of Agriculture, University of Arizona (Tucson, AZ), 2017. http://hdl.handle.net/10150/625439.

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13 pp.<br>A nitrogen fertilizer study was conducted in order to determine the effect of N rates on forage sorghum yield and quality and to develop tissue testing guidelines for fertilizer application to forage sorghum. The study was conducted at the University of Arizona Maricopa Agricultural center on sandy clay loam soil irrigated using the flood method. Forage sorghum was fertilized with six N rates varying from 0 to 250 lb N/acre in 50 lb N/acre increments. The whole plant, lower stem, and most recently expanded leaf were sampled five times during the growing season and analyzed for N cont

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17

Morton, Lincoln William. "The role of dietary phenolic compounds in the detoxification of reactive nitrogen species." University of Western Australia. Dept. of Medicine, 2003. http://theses.library.uwa.edu.au/adt-WU2003.0026.

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[Truncated abstract. Please see the pdf format for the complete text.] Interest in the role of peroxynitrite in the pathogenesis of atherosclerosis has increased due to many in vitro studies which have demonstrated its potent oxidising and nitrating capability and immunohistochemical staining studies which demonstrate nitration of tyrosine in vivo. It is frequently suggested that the production of nitric oxide and superoxide at sites of inflammation implicates peroxynitrite as the major damaging reactive nitrogen species in vivo. Evidence for a role for peroxynitrite is often demonstrated by

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18

Ariapour, Azita. "Effect of nitrogen on Fe-Mn-based shape memory alloys." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape11/PQDD_0002/NQ41396.pdf.

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19

Khamees, H. S. "Effect of some ecological factors on nitrogen fixation by cyanobacteria." Thesis, Swansea University, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.637784.

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20

Reece, William Hugh Hathorn. "The effect of reactive nitrogen intermediates on Leishmania mexicana mexicana." Thesis, University of Glasgow, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.363164.

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21

Diallo, Sory. "Effect of genotypes and nitrogen on grain quality of sorghum." Thesis, Kansas State University, 2012. http://hdl.handle.net/2097/14628.

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Master of Science<br>Department of Agronomy<br>P.V. Vara Prasad<br>Sorghum (Sorghum bicolor L. Moench) is cultivated as an important food grain in the semi-arid regions of Africa. Processed grain sorghum is traditionally consumed as porridge, couscous, traditional tô or beer. The quality of such foods is highly dependent upon grain characteristics. Sorghum grain quality traits mainly include kernel hardness, kernel weight, kernel size, protein content and kernel color. Grain quality traits are often influenced by environment, genotypes, fertilizer management and their interaction. The objectiv

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22

Gentili, Matilde. "Effect of nitrogen nutrition on yeast ecology and alcoholic fermentation." Master's thesis, ISA-UL, 2016. http://hdl.handle.net/10400.5/12216.

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Mestrado Vinifera Euromaster - Instituto Superior de Agronomia - UL<br>Wine is an alcoholic beverage obtained from the fermentation of grape juice. Alcoholic fermentation is the main process to obtain the final product but of course other reactions take place during the transformation of grape juice into wine. Yeasts are one of the fundamental microorganisms to realize the alcoholic fermentation, that leads sugars to be transformed in ethanol and to development of other compounds. Yeasts as known are living organisms so they need nutrients for their reproduction and often the lack of some

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23

Horner, Emily Renee. "THE EFFECT OF NITROGEN APPLICATION TIMING ON PLANT AVAILABLE PHOSPHORUS." The Ohio State University, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=osu1211932436.

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24

Payne, Kathryn Marie. "ENHANCED EFFICIENCY NITROGEN FORMULATION EFFECT ON GRASS-LEGUME PASTURE PRODUCTIVITY." UKnowledge, 2019. https://uknowledge.uky.edu/pss_etds/113.

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The use of nitrogen (N) fertilizer is generally restricted on mixed species forage systems due to its stimulatory effect on grasses which increases competition with legume species. Reduced legume growth from this competition can compromise forage nutritive value and prospective yields. The controlled-release nature of several enhanced efficiency fertilizer N products holds the potential to improve legume persistence in mixed species pastures while providing supplemental N required by the grass component. The studies contained in this dissertation evaluated the effect of different enhanced effi

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25

Al-Rawahy, Salim Ali. "Nitrogen uptake, growth rate and yield of tomatoes under saline conditions." Diss., The University of Arizona, 1989. http://hdl.handle.net/10150/184894.

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Results of two studies are reported here, a greenhouse study and a field study. In the greenhouse study, dry matter yield and nitrogen (total and 15N) uptake of leaves, stems and roots of tomato plants (Lycopersicum esculentum Mill., cv. Columbia) subjected to saline stress by NaCl were studied. The integrated effects of responses of these tissues to salinity on the whole plant basis and levels of Na⁺, Cl⁻ and K⁺ accumulation in these tissues were also studied. The treatments consisted of low (control, 0.3 bar), medium (4.3 bars), and high (8.3 bars) salinity. The saline treatments were prepar

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26

Nilsson, Hultén Leo. "Nitrogen Without Oxygen : The effect of ferroalloys added after vacuum treatment on cleanliness of nitrogen-alloyed tool steel." Thesis, KTH, Materialvetenskap, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-298093.

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Nitrogen-alloyed tool steel is made at Uddeholms AB by adding high-nitrogen ferroalloy after vacuum degassing where introduced impurities are hard to remove. In this thesis two types of high-nitrogen ferrochromium are compared, a solid version and a powder cored wire. They are examined in crossection and 16 samples from four charges are examined with Pulse Distribution Analysis as well as systematic microscopy of polished cross sections. The PDA results missed smaller spinel inclusions shown in previous research to be detrimental. The wire form shows promise but more charges need to be evaluat

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27

Tshuma, Takula. "The effect of blood urea nitrogen on reproductive performance of beef heifers on different levels of nitrogen supplementation." Diss., University of Pretoria, 2013. http://hdl.handle.net/2263/36790.

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Ruminants have a unique ability to acquire protein from non-protein nitrogen (NPN) sources, and to recycle nitrogen back into the rumen, instead of excreting all of it via the urine, faeces and milk. However, a high concentration of blood urea nitrogen (BUN) has a negative influence on conception. Additionally, a high dietary nitrogen intake poses a challenge to the environment in the form of ammonia emissions, eutrophication and bad odours. This calls for strategies to reduce the environmental impact of livestock production. Variation exists in the ability of cattle to recirculate nitrog

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28

Thaung, Tint Lwin. "Effect of nitrogen fertiliser additions on nitrogen fluxes and plantation productivity in young eucalyptus cloeziana (F. Muell) plantations /." [St. Lucia, Qld.], 2002. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe16847.pdf.

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29

Pandeya, Hemant Raj. "Carbon and nitrogen flux dynamics in highly weathered tropical mango soils: Effect of leaf litter and nitrogen fertiliser." Thesis, Queensland University of Technology, 2022. https://eprints.qut.edu.au/232828/1/Hemant%20Raj_Pandeya_Thesis.pdf.

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This thesis is a comparative study of carbon and nitrogen flux dynamics following sole and combined application of mango leaf litter mulch and inorganic fertiliser in highly weathered tropical mango orchard soils. In doing so, the thesis investigated litter decomposition dynamics and litter carbon mass balance and provided baseline datasets of seasonal and annual reactive nitrogen losses (through hydrological and gaseous pathways) under the tropical environmental conditions of Northern Territory Australia.

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30

Mooleki, Siyambango Patrick. "Synchronization of nitrogen availability and plant nitrogen demand, nitrogen and non-nitrogen effects of lentil to subsequent wheat crops." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape2/PQDD_0029/NQ63902.pdf.

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Antunes, Cristiane Leite [UNESP]. "Fertirrigação nitrogenada por gotejamento e época de aplicação foliar de ácido giberélico 'GA IND.3' em alface americana (Lactuca sativa L.)." Universidade Estadual Paulista (UNESP), 2001. http://hdl.handle.net/11449/93828.

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Made available in DSpace on 2014-06-11T19:26:47Z (GMT). No. of bitstreams: 0 Previous issue date: 2001-01-31Bitstream added on 2014-06-13T20:34:45Z : No. of bitstreams: 1 antunes_cl_me_botfca.pdf: 3224894 bytes, checksum: ebe83c98cf65dede1137b2f26b044f56 (MD5)<br>Com o objetivo de avaliar os efeitos do nitrogênio aplicado ao solo, via fertirrigação por gotejamento, e a aplicação foliar do ácido giberélico (GA3), na nutrição e nos componentes de produção da alface tipo americana, cv. 'Lucy Brown', em cultivo protegido, foi efetuado o presente trabalho. O delineamento experimental utilizado fo

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Heidari, Sharif Abad Hossein. "Variation in the sensitivity of nodulation and nitrogen fixation to nitrate in annual "Medicago" species." Title page, table of contents and abstract only, 1994. http://web4.library.adelaide.edu.au/theses/09PH/09phh465.pdf.

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Bibliography: leaves 153-179. Annual species of Medicago, or medics, are important pasture legumes in the neutral to alkaline soils of southern Australia but their nodulation and nitrogen fixation processes are retarded by soil nitrate. This study ascertains whether an observed tolerance to nitrate among medic species can be substantiated, and attempts to understand the underlying factors responsible.

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33

Yu, Shaobing. "Winter wheat nitrogen management in south coastal British Columbia." Thesis, University of British Columbia, 1990. http://hdl.handle.net/2429/29888.

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Nitrogen is essential to obtain high yields of winter wheat in south coastal British Columbia, which includes Vancouver Island and the lower Fraser Valley. An accurate recommendation for N application is required to keep input costs down for most economical returns and to limit environmental problems related to leaching of excess N. The questions are how much, when and which form of N should be applied to winter wheat. The general objective of this study is to improve our understanding of winter wheat growth and N uptake. This study monitors the soil N supply and characterizes the plant develo

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34

Caglia, Stefania. "Nitrogen Removal in the Pilot Plant ITEST (Increased Technology in Sewage Treatment)." Thesis, KTH, Mark- och vattenteknik (flyttat 20130630), 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-171846.

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Regions with a cold winter, as in the Baltic countries, have a problem to meet the nitrogen requirement in the Urban Wastewater Treatment Directive 98/15/EC. Especially in the winter season, the temperature of the influent wastewater could arrive also below 10°C and this delays the biological processes that takes place in the wastewater treatment. With the decrease of the temperature, the efficiency of nitrogen removal in the system decreases and leads to a high nitrogen loading in the effluent. The ITEST (Increased Technology and Efficiency in Sewage Treatment) project situated in Hammarby Sj

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35

Hanson, Carter Curtis. "Temporal effect on nitrogen removal in a subsurface flow constructed wetland." Virtual Press, 1996. http://liblink.bsu.edu/uhtbin/catkey/1027117.

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A subsurface flow constructed wetland planted with the common reed (Phragmites australis) and softstem bulrush (Scirpus validus) was built in East Central Indiana. The objective of this study was to determine if temperature had an effect on nitrogen (N) removal from the wetland. The research was conducted from the first week of October 3, 1995 to the first week in December 5, 1995 why the wetland froze. Water samples were taken from 5 samplings sites in the system. Each sample was analyzed for organic-N, ammonia, nitrate, and total-N. In the system statistically significant amounts of organic-

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36

Thanapornpoonpong, Sa-nguansak. "Effect of nitrogen fertilizer on nitrogen assimilation and seed quality of amaranth (Amaranthus spp.) and quinoa (Chenopodium quinoa Willd)." Doctoral thesis, [S.l.] : [s.n.], 2004. http://hdl.handle.net/11858/00-1735-0000-0006-AB4D-1.

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Ayub, Najma. "The effect of VAM inoculation on interplant ¹⁵N transfer." Thesis, University of Aberdeen, 1991. http://digitool.abdn.ac.uk/R?func=search-advanced-go&find_code1=WSN&request1=AAIU546184.

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This thesis reports a study carried out to investigate the involvement of VA mycorrhizas in interplant 15N transfer in a model pasture system and in a model agroforestry system. Two pot experiments were designed to investigate the effect of VAM inoculation on 15N transfer from clover to rye grass in sterile (in the first experiment the sterilisation was by autoclaving and in the second, by gamma-irradiation) and fresh soil. A third pot experiment was designed to investigate the effect of VAM inoculation on 15N transfer from grass and clover to wild cherry seedlings in fresh soil. For these pot

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38

Yarber, Elizabeth Lee. "Assessing the Effect of Nitrogen Sources, Rates and Time of applications on Yield and Quality of Stockpiled Fescue and Tall Fescue Pastures." Thesis, Virginia Tech, 2008. http://hdl.handle.net/10919/33692.

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In Virginia, tall fescue [(Schedonorus phoenix (Scop.) Holub,) formally known as Festuca arundinacea L.] can be found on more than 4 million ac of hay and pastureland. Two separate experiments were conducted at three different geographical locations over two growing seasons. The objective of Experiment 1 was to evaluate the influence of N sources and rates on yield and nutritive value of stockpiled tall fescue. Experiment 2 examined the effect of split spring and fall N applications at various rates on yield and nutritive value of tall fescue pastures. The first experiment was conducted at

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Sivapathasundram, Sudhersha. "The effect of nitrogen starvation on PS2 in the cyanobacterium synechococcus." Thesis, Liverpool John Moores University, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.275823.

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Young, Sarah Louise. "Effect of nitrogen fertiliser on bacterial community dynamics in arable soils." Thesis, University of Essex, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.423712.

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Clark, Lee J., and Bryant R. Gardner. "Effect of Nitrogen Fertilizer Application on Cotton Yields, Safford Agricultural Center." College of Agriculture, University of Arizona (Tucson, AZ), 1986. http://hdl.handle.net/10150/219792.

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The 1985 and 1986 Cotton Reports have the same publication and P-Series numbers.<br>A soil depleted of nitrogen by cropping with Sudan grass and removing all the residues was planted to Upland (DP 90) and Pima (S-6) cotton. Nitrogen was added in the form of urea at three different stages of plant growth, applying a total of 0, 50 or 100 pounds of nitrogen. The yield of lint from DP 90 was increased where nitrogen was added; however, there were no differences in yield with the timing nor total amount of nitrogen added. In the case of S-6, fertilizer nitrogen did not increase yield.

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Doerge, Thomas A., T. C. Tucker, and T. W. McCreary. "Effect of Nitrification Inhibitors on Nitrogen Utilization Efficiency in Sweet Corn." College of Agriculture, University of Arizona (Tucson, AZ), 1991. http://hdl.handle.net/10150/221451.

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A field experiment using subsurface drip irrigation was conducted at the Maricopa Agricultural Center on a Casa Grande sandy loam soil to evaluate the effect of varying nitrogen (N) sources on the growth and yield of 'Sweetie' 82' sweet corn when applied with, and without four nitrification inhibitors (Nl). The NI treatments included nitrapyrin (N-Serve*), dicyandiamide (DCD), ammonium thiosulfate, and N-Hib Calcium™. Nitrogen was supplied as urea -ammonium nitrate (UAN -32). In addition, an all nitrate source plus a control which received no added N were used. Al! N treated plots received a t

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43

Darwiche, Amal Omar 1964. "Effect of cytokinin, gibberellin, and nitrogen applications on the growth of eldarica pine seedlings." Thesis, The University of Arizona, 1989. http://hdl.handle.net/10150/276979.

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A greenhouse experiment was conducted over a ninety day period to test the effect of different nitrogen fertilizer regimes and several application rates of compounds with gibberellin and cytokinin activity (GA4/7 and BA, respectively) on the growth and development of Pinus brutia var. eldarica. Nitrogen produced no significant effects and this was attributed to its abundance in the potting medium, to begin with. All levels of growth regulators used showed a highly significant effect on vegetative development. A reduction in root collar diameter, shoot elongation, needle nitrogen content and ov

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44

Campbell, Richard John. "Effect of nitrogen fertilization on the physiological damage and subsequent recovery of mite-infested apple leaves /." This resource online, 1988. http://scholar.lib.vt.edu/theses/available/etd-04122010-083649/.

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45

Beltran, Casellas Gemma. "Effect of low temperature fermentation and nitrogen content on wine yeast metabolism." Doctoral thesis, Universitat Rovira i Virgili, 2005. http://hdl.handle.net/10803/8651.

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Les fermentacions a baixes temperatures (13ºC o inferiors) són interessants en l'elaboració de vins blancs i rosats, ja que augmenten la retenció i la producció dels aromes, i per tant la qualitat del producte final. Però aquestes baixes temperatures també tenen certs desavantatges, com una disminució en la velocitat de consum de sucres, obtenint fermentacions més llargues i amb risc de parades.<br/>Per intentar millorar el procés fermentatiu i la qualitat del producte final es van fixar els següents objectius:<br/>- L'estudi del metabolisme del llevat a baixes temperatures de fermentació (13º

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Lotfollahi, Mohammad. "The effect of subsoil mineral nitrogen on grain protein concentration of wheat." Title page, table of contents and summary only, 1996. http://web4.library.adelaide.edu.au/theses/09PH/09phl882.pdf.

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Copy of author's previously published work inserted. Bibliography: leaves 147-189. This project examines the uptake of mineral N from the subsoil after anthesis and its effect on grain protein concentration (GPC) of wheat. The overall objective is to examine the importance of subsoil mineral N and to investigate the ability of wheat to take up N from the subsoil late in the season under different conditions of N supply and soil water availability. Greenhouse experiments investigate the importance of subsoil mineral N availability on GPC of wheat and the factors that contribute to the effective

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Roy, Vincent. "Effect of exhaust gas recirculation on fuel consumption and nitrogen oxides emissions." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp05/MQ63554.pdf.

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Strange, Malinda Range. "The effect of pathology on the stable isotopes of carbon & nitrogen." Diss., Online access via UMI:, 2006.

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Venkataraman, Prakash. "Effect of nitrogen filling on tire rolling resistance and vehicle fuel economy." Connect to this title online, 2007. http://etd.lib.clemson.edu/documents/1202498590/.

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Smith, Jennifer M. "The effect of nitrogen on competitive interactions in a weed-crop community." Thesis, University of East Anglia, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.357959.

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