Acceder

Bibliografías temáticas / Phosphorus and plants / Tesis

Siga este enlace para ver otros tipos de publicaciones sobre el tema: Phosphorus and plants.

Tesis sobre el tema "Phosphorus and plants"

Autor: Grafiati

Publicado: 4 de junio de 2021

Última modificación: 20 de febrero de 2023

Crea una cita precisa en los estilos APA, MLA, Chicago, Harvard y otros

Elija tipo de fuente:

Consulte los 50 mejores tesis para su investigación sobre el tema "Phosphorus and plants".

Junto a cada fuente en la lista de referencias hay un botón "Agregar a la bibliografía". Pulsa este botón, y generaremos automáticamente la referencia bibliográfica para la obra elegida en el estilo de cita que necesites: APA, MLA, Harvard, Vancouver, Chicago, etc.

También puede descargar el texto completo de la publicación académica en formato pdf y leer en línea su resumen siempre que esté disponible en los metadatos.

Explore tesis sobre una amplia variedad de disciplinas y organice su bibliografía correctamente.

1

Lung, Shiu-cheung. "Assimilation of phytate-phosphorus by plants." Click to view the E-thesis via HKUTO, 2005. http://sunzi.lib.hku.hk/hkuto/record/B35710986.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

2

Lung, Shiu-cheung, and 龍兆章. "Assimilation of phytate-phosphorus by plants." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2005. http://hub.hku.hk/bib/B35710986.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

3

Ebuele, Victor Pghogho. "Phosphorus speciation in soil and plants." Thesis, Bangor University, 2016. https://research.bangor.ac.uk/portal/en/theses/phosphorus-speciation-in-soil-and-plants(c9a2b08e-cca7-48ad-ac49-79b772d17602).html.

Texto completo

Resumen

To better understand the dynamics of P in soil and plants, chemical characterization and solution 31P nuclear magnetic resonance spectroscopy (NMR) were applied to a natural vegetation system dominated by bracken (Pteridium aquilinum (L.) Kuhn) and British bluebells (Hyacinthoides non-scripta (L.) Chouard ex Rothm.) and to different types of organically amended agricultural soils. Organic P (Po) was dominant in the natural system while the agricultural soil of the total P more than 80% was inorganic P (Pi) mainly in the form of orthophosphate. A detailed quantitative analysis of the P forms in

Los estilos APA, Harvard, Vancouver, ISO, etc.

4

Ning, Jianchang. "Mycorrhizal roles in broomsedge plants under phosphorus limitation and aluminum toxicity." Morgantown, W. Va. : [West Virginia University Libraries], 2000. http://etd.wvu.edu/templates/showETD.cfm?recnum=1685.

Texto completo

Resumen

Thesis (Ph. D.)--West Virginia University, 2000.<br>Title from document title page. Document formatted into pages; contains vii, 146 p. : ill. (some col.). Vita. Includes abstract. Includes bibliographical references (p. 126-145).

Los estilos APA, Harvard, Vancouver, ISO, etc.

5

Dong, Bei. "A phosphorus mutant of Arabidopsis thaliana." Title page, table of contents and abstract only, 1999. http://web4.library.adelaide.edu.au/theses/09PH/09phd682.pdf.

Texto completo

Resumen

Bibliography: leaves 89-104. In this study an EMS-mutated Arabidopsis mutant pho2, which accumulates Pi in leaves, was used to study Pi uptake and transport by comparing it to wild-type seedlings. The study aimed to define the physiological lesions in pho2 mutant and to obtain evidence regarding the function of the PHO2 gene in P nutrition in higher plants. Accumulation of Pi in leaves of pho2 was found to reside in the symplast and was not related to Zn-deficiency. The physiology of the pho2 mutant is consistent with either a block in Pi transport in phloem from shoots to roots or an inabilit

Los estilos APA, Harvard, Vancouver, ISO, etc.

6

Hoffman, Victor, and Anton Marmsjö. "Combustion of sludge in Fortum’s plants with possible phosphorus recycling." Thesis, KTH, Kraft- och värmeteknologi, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-146974.

Texto completo

Resumen

The management of waste is by all means a great challenge to any society. In Sweden, the past decades has seen legislation progressing in congruence with concerns over environmental stress from inefficient waste management. The legislative changes aim primarily to promote waste reduction and better waste utilization. Sludge is a waste-type from different industrial processes and is unfortunately of limited reuse and recycling-value, but sludge combustion for energy recovery appears promising. Also, the oftentimes high phosphorus content in sludge strengthens the potential of extracting phospho

Los estilos APA, Harvard, Vancouver, ISO, etc.

7

Barca, Cristian. "Steel slag filters to upgrade phosphorus removal in small wastewater treatment plants." Thesis, Nantes, Ecole des Mines, 2012. http://www.theses.fr/2012EMNA0045/document.

Texto completo

Resumen

L’objectif de ce travail est la mise au point de filtres garnis de laitiers d’aciéries destinés au traitement du phosphore (P) des eaux usées au sein de petites installations. Deux types de laitiers on été testés: laitiers de four à arc électrique (EAF), et laitiers d'aciérie de conversion (BOF). Une approche intégrée a été suivie, avec investigations à différentes échelles: (i) Des expériences en flacons ont été réalisées pour établir les capacités de rétention du P de laitiers produits en Europe, et ainsi sélectionner les échantillons les plus adaptés pour l’élimination du P; (ii)Des expérie

Los estilos APA, Harvard, Vancouver, ISO, etc.

8

Erickson, Heather E. "Nitrogen and phosphorus availability, ecosystem processes and plant community dynamics in boreal wetland meadows /." Thesis, Connect to this title online; UW restricted, 1994. http://hdl.handle.net/1773/5590.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

9

Mackowiak, Cheryl L. "The Efficacy of Plant Residue Degradation Products on Phosphorus, Iron, Iodine, and Fluorine Bioavailability to Plants." DigitalCommons@USU, 2001. https://digitalcommons.usu.edu/etd/6758.

Texto completo

Resumen

Plant and animal wastes degrade in soils to form relatively stable humified compounds, which form ion complexes that affect the bioavailability of elements in the soil solution. Hydroponic studies with wheat and rice were conducted to characterize the effect of humic acid (HA) on phosphorus (P), iron (Fe), fluorine (F), and iodine (I) bioavailability. Ferrihydrite [Fe(OH)3] precipitation was greater on root surfaces without HA or synthetic chelates. Oxides such as ferrihydrite strongly adsorb P and provide exchange sites for metals. HA reduced this precipitate and increased P and Fe uptake. Hu

Los estilos APA, Harvard, Vancouver, ISO, etc.

10

Kalifa, Ali. "Salt stress, and phosphorus absorption by potato plants cv. 'Russet Burbank'." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp04/mq29727.pdf.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

11

McLaughlin, Michael John. "Phosphorus cycling in soil under wheat-pasture rotations /." Title page, contents and summary only, 1986. http://web4.library.adelaide.edu.au/theses/09PH/09phm1615.pdf.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

12

Tickes, Barry, and Mike Ottman. "The Effect of Phosphorus on Alfalfa Yield." College of Agriculture, University of Arizona (Tucson, AZ), 1992. http://hdl.handle.net/10150/201366.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

13

Baon, John Bako. "Role of mycorrhizas in the assessment of phosphorus efficiency in cereals." Title page, contents and summary only, 1994. http://web4.library.adelaide.edu.au/theses/09PH/09phb221.pdf.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

14

Attumi, Al-Arbe. "Effects of salt stress on phosphorus and sodium absorptions by soybean plants." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape11/PQDD_0001/MQ44119.pdf.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

15

Kubachka, Kevin Michael. "Elemental speciation analysis of arsenic, selenium, and phosphorus exploring foods and plants /." Cincinnati, Ohio : University of Cincinnati, 2007. http://www.ohiolink.edu/etd/view.cgi?acc%5Fnum=ucin1180714534.

Texto completo

Resumen

Thesis (Ph. D.)--University of Cincinnati, 2007.<br>Title from electronic thesis title page (viewed Oct. 8, 2007). Includes abstract. Keywords: selenium, phosphorus, arsenic, speciation ICP-MS. Includes bibliographical references.

Los estilos APA, Harvard, Vancouver, ISO, etc.

16

Attumi, Al-Arbe. "Effect of salt stress on phosphorus and sodium absorptions by soybean plants." Thesis, McGill University, 1997. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=20242.

Texto completo

Resumen

The radiotracer methodology was combined with the Hoagland solution culture of growing soybean in a greenhouse to investigate the absorptions of phosphorus (P), calcium (Ca), and sodium (Na) as a function of salinity. Salt stress was varied by using zero to 120 mM NaCl. The research was initiated because of a need to increase soybean production in the saline soils of the semi-arid regions of the world. Although P absorption increased with time at each concentration of NaCl, increasing its concentrations ([NaCl]) to 120 mM reduced P uptake considerably. The addition of inorganic P (Pi) to the s

Los estilos APA, Harvard, Vancouver, ISO, etc.

17

Sammeli, Maria. "Optimizing resources – studying ways to recycling phosphorus from onsite wastewater treatment plants." Thesis, KTH, Mark- och vattenteknik, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-180286.

Texto completo

Resumen

Eutrophication of the Baltic Sea has been an issue for decades and the pollution constantly continues with oxygen deficient bottoms and a damaged marine life as a result. One of the main causes of eutrophication are elevated levels of the nutrient phosphorus. Phosphorus leaks to the sea from various human activities such as agriculture, animal farming and sewage. In Sweden, the onsite wastewater treatment systems are a big problem since they load the Baltic Sea with nearly as much phosphorus as all Swedish municipal wastewater treatment plants. The need for a reduced impact on the Baltic Sea i

Los estilos APA, Harvard, Vancouver, ISO, etc.

18

Kubachka, Kevin M. "Elemental Speciation Analysis of Arsenic, Selenium and Phosphorus: Exploring Foods and Plants." University of Cincinnati / OhioLINK, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1180714534.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

19

Rahutomo, Suroso. "The response of allocasuarina littoralis, hakea florulenta and hakea actities to organic phosphorus /." [St. Lucia, Qld.], 2005. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe18867.pdf.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

20

Ottman, Michael J., Thomas L. Thompson, M. T. Rogers, and Scott A. White. "Alfalfa Response to Forms of Phosphorus Fertilizer." College of Agriculture, University of Arizona (Tucson, AZ), 2000. http://hdl.handle.net/10150/204090.

Texto completo

Resumen

Many agricultural workers feel that 10-34-0 is a superior fertilizer for alfalfa since it is thought to move deeper in the soil with irrigation, be more available to the plant, and result in higher yields at equivalent rates compared to 11-52- 0. We found in our study with 24 cuttings over 3 years that alfalfa yields were similar if fertilized with 10-34-0 or 11-52-0 at equivalent rates. Total plant P was not affected by P fertilizer form or method of application. Broadcast 11- 52-0 resulted in higher soil P levels than water-run 10-34-0 and moved deeper in the soil profile. Broadcast 11-52-0

Los estilos APA, Harvard, Vancouver, ISO, etc.

21

Stroehlein, Jack, Lee Clark, and Edith DeRosa. "Response of Alfalfa to Phosphorus Fertilizer Sources." College of Agriculture, University of Arizona (Tucson, AZ), 1987. http://hdl.handle.net/10150/203794.

Texto completo

Resumen

A field study was carried out to determine the effects of different fertilizers on yield and quality of alfalfa. Two harvests over a period of four cuttings did not reveal any differences due to treatment. While alfalfa often responds to phosphorus (P) fertilizer application, conditions in this study provided adequate P as well as nitrogen (N) and potassium (K).

Los estilos APA, Harvard, Vancouver, ISO, etc.

22

Kordi, Javad. "Processes and drivers of biological and chemical Phosphorus removal in wastewater treatment plants." Thesis, Högskolan i Halmstad, Akademin för ekonomi, teknik och naturvetenskap, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-38814.

Texto completo

Resumen

Phosphorus (P) is one of the most important elements exists in wastewater in soluble forms. Several methods have been using for P recovery in wastewater treatment plants, but this study tried to investigate on the most important drivers and the processes of biological phosphorus removal (EBPR) and chemical phosphorus removal that are the major technics of P recovery globally. It has been considered that EBPR is a high recovery method (normally greater than 90%) which could be implemented in different regimes with the integration feasibility of different methods, while chemical precipitation is

Los estilos APA, Harvard, Vancouver, ISO, etc.

23

Kroehler, Carolyn J. "The role of acid phosphatases in the phosphorus nutrition of arctic tundra plants." Diss., Virginia Polytechnic Institute and State University, 1987. http://hdl.handle.net/10919/80295.

Texto completo

Resumen

The acid phosphomonoesterase activity associated with two major rooting strategies in arctic tundra plants was examined: that of Eriophorum vagina tum, a dominant plant in tussock tundra ecosystems, with its predominantly non-mycorrhizal root system; and that of ectomycorrhizal roots. Eriophorum has phosphatase activity which is evenly distributed along its root surface, has a pH optimum at soil pH (3.5-4.0), and continues at substantial rates at 1 °C. Inorganic phosphorus inhibits activity only 7 to 19%. In addition, Eriophorum has phosphatase activity associated with all the "below-ground"

Los estilos APA, Harvard, Vancouver, ISO, etc.

24

Polomski, Robert Frank. "Nitrogen and phosphorus remediation of aquatic garden plants in laboratory-scale constructed wetlands." Connect to this title online, 2009. http://etd.lib.clemson.edu/documents/1252937790/.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

25

Parks, Sophie Emma, University of Western Sydney, and Faculty of Science and Technology. "Proteaceae nutrition and the phosphorus requirements of Banksia ericifolia L.f." THESIS_FST_xxx_Park_S.xml, 2000. http://handle.uws.edu.au:8081/1959.7/103.

Texto completo

Resumen

The basic mineral nutritional requirements of Proteaceae are not well understood.They are generally assumed to require low levels of nutrients and be susceptible to nutrient (especially Phosphorus) toxicity.This project aimed to estimate the general nutritional requirements of Proteaceae for optimum growth, with special emphasis on the Phosphorus requirement. Potted plants were grown in soilless growth media with controlled release fertiliser and were watered according to need in a naturally lit greenhouse. The nutrient requirements of Proteaceae were found to vary among species but were not l

Los estilos APA, Harvard, Vancouver, ISO, etc.

26

Parks, Sophie Emma. "Proteaceae nutrition and the phosphorus requirements of Banksia ericifolia L.f. /." View thesis View thesis, 2000. http://library.uws.edu.au/adt-NUWS/public/adt-NUWS20030429.105120/index.html.

Texto completo

Resumen

Thesis (Ph.D.) -- University of Western Sydney, 2000.<br>"A thesis submitted in fulfilment of the requirement for the degree of Doctor of Philosophy, Horticulture, University of Western Sydney, Australia, December 2000" Bibliography : leaves 206-230.

Los estilos APA, Harvard, Vancouver, ISO, etc.

27

Morrison, Kirk Murray. "An assessment of the potential for biological phosphorus removal in Canadian wastewater treatment plants." Thesis, University of British Columbia, 1988. http://hdl.handle.net/2429/28507.

Texto completo

Resumen

This thesis assesses the potential for enhanced biological phosphorus (Bio-P) removal in Canadian wastewater treatment plants. Retrofit designs incorporating Bio-P removal were prepared for nine wastewater treatment plants across Canada, and were compared against chemical phosphorus removal technologies. Incremental capital and operating costs were calculated and internal rates of return (IRR's) for the capital investment required to install the Bio-P removal facilities were calculated. Based on these results, an assessment of the potential use for the technology in Canada is made. Of the nin

Los estilos APA, Harvard, Vancouver, ISO, etc.

28

Dickson, Sandra. "Phosphate transfer efficiency of two arbuscular mycorrhizal fungi." Title page, contents and abstract only, 1999. http://web4.library.adelaide.edu.au/theses/09PH/09phd5541.pdf.

Texto completo

Resumen

Bibliography: leaves 169-193. This study investigated whether both S. Calospora and Glomus sp. "City Beach" WUM 16 both increase the rate of transfer of phosphate (P) to the plant Allium porrum, and whether the addition of P to the soil has any effect on the uptake rates. The main experiment compared the fungi under two P levels in soils. It was found that in soil with no added P, S. calospora depressed plant growth in the early stages, but was increased in later harvests. G. sp. "City Beach" increased plant growth throughout. In soil with added P, both sets of plants produced growth depressio

Los estilos APA, Harvard, Vancouver, ISO, etc.

29

Catma, Serkan. "Utilization of excess manure within the Chesapeake Bay Watershed a cost minimization approach /." Morgantown, W. Va. : [West Virginia University Libraries], 2008. https://eidr.wvu.edu/etd/documentdata.eTD?documentid=5748.

Texto completo

Resumen

Thesis (Ph. D.)--West Virginia University, 2008.<br>Title from document title page. Document formatted into pages; contains xi, 228 p. : ill. (some col.), col. maps. Vita. Includes abstract. Includes bibliographical references (p. 178-185).

Los estilos APA, Harvard, Vancouver, ISO, etc.

30

Tickes, Barry R., and Tom Doerge. "Survey of Soil Phosphorus in Established Alfalfa Fields in Yuma County." College of Agriculture, University of Arizona (Tucson, AZ), 1992. http://hdl.handle.net/10150/201365.

Texto completo

Resumen

A survey was conducted to evaluate the soil phosphorus levels in a cross section of established alfalfa fields in Yuma County The levels of extractable phosphorus (P) varied from 3 to 43 ppm P. All of the soils testing in the very low (below 5 ppm P) and low categories (5 -10 ppm P) were located in the Wellton-Mohawk Valley and on the Yuma Mesa. Annual soil testing in the fall should be used to identify fields which would be expected to be responsive to P fertilizer applications. Soil testing could also help identify fields less like& to respond to P additions (P values > 15 ppm). Eighty perce

Los estilos APA, Harvard, Vancouver, ISO, etc.

31

Ottman, M. J. "Response of Wheat and Barley Varieties to Phosphorus Fertilizer, 2010." College of Agriculture, University of Arizona (Tucson, AZ), 2010. http://hdl.handle.net/10150/279396.

Texto completo

Resumen

Phosphorus fertilizer represents a significant portion of the cost of producing small grains. Some evidence exists that there are differences in the ability of small grain varieties to take phosphorus up from the soil and utilize this nutrient in the grain. The objective of this study is to determine if barley and wheat varieties grown in Arizona differ in their response to phosphorus fertilizer. A study was conducted for the second year at the Maricopa Agricultural Center testing the response of 7 barley and 14 wheat (12 durum wheat and 2 bread wheat) varieties to 2 phosphorus rates (0 and 10

Los estilos APA, Harvard, Vancouver, ISO, etc.

32

Misra, Rabindra Kumar. "Root growth and phosphorus uptake in relation to soil structure and strength /." Title page, table of contents and summary only, 1986. http://web4.library.adelaide.edu.au/theses/09PH/09phm6781.pdf.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

33

Larsdotter, Karin. "Microalgae for Phosphorus Removal from Wastewater in a Nordic Climate." Doctoral thesis, Stockholm, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3896.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

34

Janat, Mohamad Mussaddak. "Phosphorus fractions, movement and fertilizer requirements of grapes grown on White House soil." Diss., The University of Arizona, 1989. http://hdl.handle.net/10150/184754.

Texto completo

Resumen

A two-year fertilizer study on a mature vineyard of Vita vinifera, C. V. Cabernet Sauvignon and Sauvignon blanc, has been conducted on White House sandy loam (fine, mixed, thermic Ustollic Haplargid), at Page Ranch, International Agricultural Center. Furthermore, eleven different varieties grown at Page Ranch and treated with different levels of nitrogen fertilizer were tested for total P content in plant tissue and NO₃-N. Moreover, in another site with similar soil, a Cabernet Sauvignon grown at the Vina Sonoita Vineyard was treated with both soil and foliar applications of P fertilizer, and

Los estilos APA, Harvard, Vancouver, ISO, etc.

35

Gikaara, Daniel Maina. "Phosphorus nutrition of the Australian native flowering plants caustis blakei, sticherus flabellatus and chamelauchium uncinatum /." St. Lucia, Qld, 2003. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe17488.pdf.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

36

Stewart, C. Neal. "The ecophysiological significance of insectivory as well as nitrogen and phosphorus availability to sundew nutrient cycling, growth, and success." Thesis, This resource online, 1990. http://scholar.lib.vt.edu/theses/available/etd-03242009-040824/.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

37

Ottman, Michael J. "Response of wheat and barley varieties to phosphorus fertilizer, 2009." College of Agriculture, University of Arizona (Tucson, AZ), 2010. http://hdl.handle.net/10150/203770.

Texto completo

Resumen

Phosphorus fertilizer represents a significant portion of the cost of producing small grains. Some evidence exists that there are differences in the ability of small grain varieties to take phosphorus up from the soil and utilize this nutrient in the grain. The objective of this study is to determine if barley and wheat varieties grown in Arizona differ in their response to phosphorus fertilizer. A study was initiated at the Maricopa Agricultural Center testing the response of 7 barley and 13 wheat (12 durum wheat and 1 bread wheat) varieties to 2 phosphorus rates (0 and 100 lbs P2O5/acre). Th

Los estilos APA, Harvard, Vancouver, ISO, etc.

38

Ottman, M. J. "Response of Wheat and Barley Varieties to Phosphorus Fertilizer, 2011." College of Agriculture, University of Arizona (Tucson, AZ), 2012. http://hdl.handle.net/10150/211138.

Texto completo

Resumen

Phosphorus fertilizer represents a significant portion of the cost of producing small grains. Some evidence exists that there are differences in the ability of small grain varieties to take phosphorus up from the soil and utilize this nutrient in the grain. The objective of this study is to determine if barley and wheat varieties grown in Arizona differ in their response to phosphorus fertilizer. A study was conducted for the third year at the Maricopa Agricultural Center testing the response of 7 barley and 14 wheat (12 durum wheat and 2 bread wheat) varieties to 2 phosphorus rates (0 and 100

Los estilos APA, Harvard, Vancouver, ISO, etc.

39

Hamden, Rafidah Binti. "Aerated blast furnace slag filters for enhanced nitrogen and phosphorus removal form small wastewater treatment plants." Thesis, University of Leeds, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.535097.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

40

Abrahão, Anna 1988. "Estratégias de forrageamento de plantas em campos rupestres da Cadeia do Espinhaço, MG, Brasil = aquisição e uso de nitrogênio e fósforo = Plant foraging strategies in rupestrian fields from the Espinhaço range, Minas Gerais, Brazil: nitrogen and phosphorus acquisition and use." [s.n.], 2013. http://repositorio.unicamp.br/jspui/handle/REPOSIP/316209.

Texto completo

Resumen

Orientador: Rafael Silva Oliveira<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Biologia<br>Made available in DSpace on 2018-08-23T02:26:20Z (GMT). No. of bitstreams: 1 Abrahao_Anna_M.pdf: 1511361 bytes, checksum: dc831d20228afc2bba2cbea5130726b4 (MD5) Previous issue date: 2013<br>Resumo: Apesar da grande diversidade de espécies de plantas nativas de solos tropicais e pobres em nutrientes, pouco se sabe sobre a diversidade de mecanismos de aquisição e uso de nutrientes nesses ambientes. Nesse contexto, o objetivo desse estudo foi entender como ocorre à aquisição

Los estilos APA, Harvard, Vancouver, ISO, etc.

41

Lansford, Vernon D. "Economic and environmental implications of a phosphorus standard : 160-sow representative farm in Montgomery County, Missouri /." free to MU campus, to others for purchase, 2001. http://wwwlib.umi.com/cr/mo/fullcit?p3036837.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

42

Clark, Lee J., and Keller F. Ellsworth. "Wheat response to pre-plant phosphorus at Safford Agricultural Center, 2001-03." College of Agriculture, University of Arizona (Tucson, AZ), 2003. http://hdl.handle.net/10150/205402.

Texto completo

Resumen

The 2003 study was a follow up of the 2001 and 2002 studies, but the major differences were the selection of a high quality durum wheat with values significantly higher that those seen in the previous two studies and the untreated check was eliminated and a higher level of phosphorous was applied. Treatments applied were 100, 200, 400 and 600 pounds of 16-20-0 planted with the seed through the grain drill. Phosphorus applied at planting improved yields with increasing application rates. In this study, the highest rate of application of phosphorus produced the highest profit.

Los estilos APA, Harvard, Vancouver, ISO, etc.

43

Clark, L. J., and E. W. Carpenter. "Durum Wheat Response to Pre-plant Phosphorus at Safford Agricultural Center, 1998." College of Agriculture, University of Arizona (Tucson, AZ), 1998. http://hdl.handle.net/10150/208253.

Texto completo

Resumen

The economic effect of applying phosphorus at planting of durum wheat is directly correlated to the phosphorus that is available to the plants from the soil. For bicarbonate soluble phosphorus levels less than 6 ppm, there will likely be a positive economic effect from applying some phosphorus. At this site the soil phosphorus level was 4.8 ppm and the application of 200 pounds of 16-20-0 caused an increase in yield of 2101 pounds per acre. A cost of $23 per acre with a return of $168 per acre.

Los estilos APA, Harvard, Vancouver, ISO, etc.

44

Derafshi, Mohammadali H. "The effect of depth of placement of phosphorus fertiliser on the growth and development of field peas." Title page, contents and anstract only, 1997. http://web4.library.adelaide.edu.au/theses/09PH/09phd427.pdf.

Texto completo

Resumen

Bibliography: leaves 190-212. This thesis reports on the results of 3 glasshouse and 3 field experiments. The glasshouse experiments measure the effects of depth of placement and level of phosphorus (P) on the growth of field peas (Pisum sativum L. cv. Alma). The results of all the experiments suggest that placing P fertiliser 4-5 cm below the seed of field pea crops will be beneficial in terms of nodulation, P uptake, grain yield and grain P concentration.

Los estilos APA, Harvard, Vancouver, ISO, etc.

45

Zhou, Xiaobai. "Experimental study of some parameters affecting polycyclic aromatic hydrocarbons (PAHs) dissipation in the rhizosphere of mycorrhizal plants." Thesis, Nancy 1, 2010. http://www.theses.fr/2010NAN10086/document.

Texto completo

Resumen

Les HAP sont parmi les substances les plus problématiques parce qu'ils ont un fort pouvoir cancérigène, mutagène et ont, par conséquent, des effets nocifs pour la santé humaine. Parmi les techniques de remédiation des sols contaminés par des HAP, la phytoremédiation a été reconnue comme une méthode prometteuse en raison de ses avantages économiques et écologiques. Toutefois, en raison de la nature récalcitrante des HAP, et de facteurs environnementaux difficile à maîtriser, cette technique est encore limitée en termes d'efficacité, en particulier lorsqu'il s'agit de HAP de poids moléculaires é

Los estilos APA, Harvard, Vancouver, ISO, etc.

46

Demars, Benoît Olivier Laurent. "Aquatic vascular plants in nitrate-rich calcareous lowland streams : do they respond to phosphorus enrichment and control?" Thesis, University of Leicester, 2002. http://hdl.handle.net/2381/29832.

Texto completo

Resumen

The problems of eutrophication in the lowland rivers of Britain have been exacerbated in the past 13 years by the droughts of 1989-92 and 1995-96. Large growths of filamentous algae have smothered aquatic vascular plants (major primary producers) in lowland calcareous streams and phosphorus enrichment has been blamed for a shift in submerged plant species composition and community structure. This study investigated the impact of phosphorus removal from two sewage treatment works (STWs) situated in the River Wensum catchment area, Norfolk, UK. The mesology of aquatic vascular plants was investi

Los estilos APA, Harvard, Vancouver, ISO, etc.

47

Clark, L. J., and E. W. Carpenter. "Wheat and Barley Response to Pre-plant Phosphorus at Safford Agriculural Center, 1999." College of Agriculture, University of Arizona (Tucson, AZ), 1999. http://hdl.handle.net/10150/205157.

Texto completo

Resumen

The economic effect of applying phosphorus at planting of durum wheat is directly correlated to the phosphorus that is available to the plants from the soil. In 1998 a study was done on a field with a bicarbonate soluble phosphorus level of 4.8 ppm, an a sizeable return on the phosphorous fertilizer investment was seen. In 1999 the test field had a phosphorous level of 13.0 ppm and as the University guidelines indicated, returns on phosphoroud expenditures were small. Negative returns were seen with barley and an increase of $61/ac was seen with 400 pounds of 16-20-0 on wheat.

Los estilos APA, Harvard, Vancouver, ISO, etc.

48

Clark, Lee J., and E. W. Carpenter. "Wheat and barley response to pre-plant phosphorus at Safford Agricultural Center, 2001-02." College of Agriculture, University of Arizona (Tucson, AZ), 2002. http://hdl.handle.net/10150/203858.

Texto completo

Resumen

This two year study is a follow-up to a study started in 1999, looking at phosphorus applications at planting on wheat and barley. Treatments applied were 0, 100, 200 and 400 pounds of 16-20-0 planted through the grain drill with the seed. Phosphorus applied at planting improved yields in most replicates, but because of the cost of the fertilizer, the higher yields were not always the most economically profitable.

Los estilos APA, Harvard, Vancouver, ISO, etc.

49

Mudau, Fhatuwani N. "Growth, development and chemical composition of bush tea (Athrixia phylicoides L.) as affected by seasonal nitrogen, phosphorus and potassium nutrition." Pretoria : [s.n.], 2006. http://upetd.up.ac.za/thesis/available/etd-08242006-133149.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

50

Fulton, Barry A. Brooks Bryan William. "Assessing interactions between nutrients and toxicity influences of nitrogen and phosphorus on triclosan toxicity to the aquatic macrophyte "lemna gibba" /." Waco, Tex. : Baylor University, 2009. http://hdl.handle.net/2104/5351.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

Ofrecemos descuentos en todos los planes premium para autores cuyas obras están incluidas en selecciones literarias temáticas. ¡Contáctenos para obtener un código promocional único!