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Dissertations / Theses on the topic 'Soil physical and chemical quality'

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Published: 4 June 2021

Last updated: 4 February 2022

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1

Netherton, Marks Evan Alexander. "Biochar effects on soil quality as evaluated by physical, chemical, and biological parameters." Doctoral thesis, Universitat Autònoma de Barcelona, 2013. http://hdl.handle.net/10803/131325.

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El biochar es un producto resultante de la descomposición térmica mediante pirolisis de biomasa y aplicado al suelo para mejorar sus propiedades. Este area de investigación está auge actualmente por su papel en mejorar la práctica agrícola y como estrategia de secuestro de carbono en suelo. Aún siendo un campo joven, poco se sabe sobre su idoneidad a largo plazo, y aún no se ha estudiado suficientemente sus posibles efectos negativos sobre la calidad del suelo, incluyendo la biología del suelo. Esta tesis toma como enfoque métodos biológicos para evaluar el impacto de biochar sobre la calida

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2

Emery, E. Hayden. "Effects of Organic Versus Conventional Farming Methods on Physical and Chemical Soil Quality Indicators." The Ohio State University, 2006. http://rave.ohiolink.edu/etdc/view?acc_num=osu1392140957.

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3

Hottle, Ryan Darrell. "Quantifying the impact of biochar on plant productivity and changes to soil physical and chemical properties on a maize soybean rotation in the U.S." The Ohio State University, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=osu1374064522.

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4

Colodro, Gilberto. "Recuperação de solo de area de emprestimo com lodo de esgoto." [s.n.], 2005. http://repositorio.unicamp.br/jspui/handle/REPOSIP/257227.

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Orientador: Carlos Roberto Espindola<br>Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia Agricola<br>Made available in DSpace on 2018-08-05T08:09:18Z (GMT). No. of bitstreams: 1 Colodro_Gilberto_D.pdf: 1303522 bytes, checksum: 0ad772710ae2e3db6a985db59816eabf (MD5) Previous issue date: 2005<br>Resumo: Foi avaliado o efeito do lodo de esgoto na recuperação de um subsolo degradado em decorrência da construção da Usina Hidrelétrica de Ilha Solteira, por retirada de espessa camada de solo original (área de empréstimo), há mais de 30 anos. A área está localizada no mu

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5

Gava, José Luiz. "Relações entre atributos do solo e qualidade da madeira de clone de Eucalyptus grandis para produção de celulose." Universidade de São Paulo, 2005. http://www.teses.usp.br/teses/disponiveis/11/11150/tde-10112005-151917/.

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Este trabalho teve como objetivo avaliar o efeito de atributos físicos e químicos do solo na qualidade da madeira, estabelecendo correlações com as variáveis do processo de polpação celulósica. Para tanto, foram selecionadas cinco áreas no planalto ocidental do Estado de São Paulo, plantadas com um mesmo clone de Eucalyptus grandis Hill Ex Maiden (Coff´s Harbour), com idades variando entre 6,5 e 7,0 anos de idade, pertencentes à Suzano Papel e Celulose. Foram coletadas amostras de solo deformadas para fins de análises físicas e químicas. Amostras não deformadas foram utilizadas para análises f

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6

SANTIAGO, Fábio dos Santos. "Avaliação da qualidade do solo em sistemas de cultivo irrigado agroecológico e convencional no semiárido do Rio Grande do Norte." Universidade Federal Rural de Pernambuco, 2015. http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/5313.

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Submitted by Mario BC (mario@bc.ufrpe.br) on 2016-08-15T12:05:31Z No. of bitstreams: 1 Fabio dos Santos Santiago.pdf: 3247120 bytes, checksum: d574e99d4f917f68af4d37b81e4e642f (MD5)<br>Made available in DSpace on 2016-08-15T12:05:31Z (GMT). No. of bitstreams: 1 Fabio dos Santos Santiago.pdf: 3247120 bytes, checksum: d574e99d4f917f68af4d37b81e4e642f (MD5) Previous issue date: 2015-02-25<br>The Semiarid Northeast Brazil is characterized by hydric deficit, has low soil organic matter, mainly due to erosion, high temperatures and reduced replacement of plant residues and/or organic fertilization

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7

Drlíková, Barbora. "Posouzení kvality půdy zpracované klasickým způsobem ve vybrané lokalitě v Olomouckém kraji." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2017. http://www.nusl.cz/ntk/nusl-265451.

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Diploma thesis documents the problems of soil quality, which is assessed on the basis of physical, chemical or biological indicators of soil quality. The paper describes the various indicators, its methodology and evaluation. In the practical part evaluates the quality of soil cultivated with the traditional way - using plowing. The experimental area, where the samples were taken from the soil, lies in the Olomouc region in the municipality Šumvald. Evaluated were selected physical, chemical and physico-chemical properties of soil, e.g. particle size distribution, bulk density, porosity, air c

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8

GUIDOTTI, LAURA. "APPLICAZIONE DI INDICATORI FISICI, CHIMICI E BIOLOGICI PER VALUTARE LA QUALITA' E LO STATO DI SALUTE DEI SUOLI. IL CASO DELLA REGIONE LOMBARDIA." Doctoral thesis, Università Cattolica del Sacro Cuore, 2015. http://hdl.handle.net/10280/6077.

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Scopo del progetto era valutare lo stato di salute e la qualità dei suoli agricoli lombardi e di alcune sue aree caratterizzate da specifiche criticità ambientali, attraverso un monitoraggio multidisciplinare. L’uso di indicatori biologici accoppiato alle classiche tecniche analitiche ha consentito di implementare le informazioni ottenute dal punto di vista chimico-fisico. Contrariamente al passato infatti, la componente vivente del suolo è diventata fondamentale alla comprensione delle sue condizioni, in quanto esso è stato riconosciuto come sistema strettamente connesso agli altri comparti a

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9

Melkamu, Teshome. "Intercropping in corn : soil physical quality and soil inorganic nitrogen levels." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1996. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/MQ44098.pdf.

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10

Alrajehy, Abdulrahman Mohammed. "Relationships between reflectance and soil physical and chemical properties." Master's thesis, Mississippi State : Mississippi State University, 2002. http://library.msstate.edu/etd/show.asp?etd=etd-10012002-122014.

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11

El-Haris, Mamdouh Khamis. "Soil spatial variability: Areal interpolations of physical and chemical parameters." Diss., The University of Arizona, 1987. http://hdl.handle.net/10150/184290.

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Four fields of 117 ha area located at the University of Arizona's Maricopa Agricultural Center were selected for this study. Two soil series, the Casa Grande sandy clay loam and Trix clay loam occur. Surface samples (0-25 cm) were collected on a 98 m interval and 3 rows providing 47 sites per field. Sites were classified either as surveying (32) or testing (15) in each of the four fields. Additional samples at 25-50, 50-75, 75-100, and 100-125 cm were obtained with duplicate surface undisturbed cores at 5 sites per field. Soil parameters include bulk density, saturated hydraulic conductivity,

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12

Demyan, Michael Scott. "Chemical and Physical Changes in Twenty Five Year-Old Minesoils in Southeast Ohio." The Ohio State University, 2006. http://rave.ohiolink.edu/etdc/view?acc_num=osu1419259892.

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13

RUFINO, Sara Regina Miranda. "Indicadores da qualidade do solo de propriedades em transição agroecológica." Universidade Federal de Campina Grande, 2014. http://dspace.sti.ufcg.edu.br:8080/jspui/handle/riufcg/457.

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Submitted by Johnny Rodrigues (johnnyrodrigues@ufcg.edu.br) on 2018-04-23T15:55:11Z No. of bitstreams: 1 SARA REGINA MIRANDA RUFINO - TESE PPGEP 2014..pdf: 3286437 bytes, checksum: cfafef220e2b9de314c5df81f2286b36 (MD5)<br>Made available in DSpace on 2018-04-23T15:55:11Z (GMT). No. of bitstreams: 1 SARA REGINA MIRANDA RUFINO - TESE PPGEP 2014..pdf: 3286437 bytes, checksum: cfafef220e2b9de314c5df81f2286b36 (MD5) Previous issue date: 2014-08-28<br>A agricultura familiar, com base agroecológica, tem estimulado mudanças significativas na vida de famílias de agricultores familiares, seja no

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14

Lima, Idamar da Silva. "Parâmetros físico-hídricos, lixiviação de nutrientes e desenvolvimento do girassol (Helianthus annuus L) em argissolo amarelo tratado com biocarvão." Universidade Federal de Sergipe, 2016. https://ri.ufs.br/handle/riufs/6183.

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The use of biochar in soil has been reported in countries like Japan and the United States, where the product already has reached commercial scale. The benefits of biochar go beyond improving the physical, chemical and biological soil properties, they involve regional and global environmental aspects, such as carbon sequestration in the soil and the efficient disposal of solid organic waste. This is because its resistant and recalcitrant organic nature. Investigation on the effects of biochar in weathered tropical soils with low water and nutrient storage capacity, as in most Brazilian s

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15

Hara, Yuto 1959. "Physical and chemical soil properties affecting the growth habits of agave species." Thesis, The University of Arizona, 1992. http://hdl.handle.net/10150/278200.

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Nine physically and chemically different soil samples from five study sites in which agaves grew, or were grown, were investigated to evaluate the effects of soil physical and chemical properties on the growth habits of agaves. In five Arizona study sites, biomass data of seven agave species has been recorded for the past ten years. Agaves were grown experimentally in the greenhouse using two widely different soil types from the five sites to evaluate growth under controlled conditions. Influence of edaphic factors on agave growth for the study sites and greenhouse experiment was evaluated. Th

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16

Jonsson, Sofia. "The influence of soil and contaminant properties on the efficiency of physical and chemical soil remediation methods." Doctoral thesis, Umeå universitet, Kemi, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-21040.

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A vast number of sites that have been contaminated by industrial activities have been identified worldwide. Many such sites now pose serious risks to humans and the environment. Given the large number of contaminated sites there is a great need for efficient, cost-effective remediation methods. Extensive research has therefore been focused on the development of such methods. However, the remediation of old industrial sites is challenging, for several reasons. One major problem is that organic contaminants become increasingly strongly sequestered as they persist in the soil matrix for a long

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17

Rockhill, Tyler K., and Tyler K. Rockhill. "Influence of Soil Physical and Chemical Properties on Soil Co2 Flux in Semi-Arid Green Stormwater Infrastructure." Thesis, The University of Arizona, 2017. http://hdl.handle.net/10150/626391.

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Rapid population growth and urbanization in semi-arid and arid regions has led to alterations in the water, carbon (C), and nitrogen (N) cycles (Gallo et al. 2014), prompting demands for mitigation strategies. Green Infrastructure (GI) is one of the methods used in urban storm water mitigation that delays and attenuates stormwater runoff by storing water in vegetated depressions. In the Southwest these depressions, also called bioswales, have the potential to act as biogeochemical hot spots, encouraging nutrient cycling, infiltration, plant growth, and microbial activity (McClain et al. 2003

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18

Beamer, Kenneth Paul. "Weed Management and Soil Quality Outcomes of Non-Chemical Weed Control Tactics." Thesis, North Dakota State University, 2018. https://hdl.handle.net/10365/28854.

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In the Northern Great Plains (NGP), weed management within organic systems remains a challenge. Experiments were conducted at two distinct sites in North Dakota to investigate effects of deep mulch no-till (NT) on soil quality indices, weed densities, and weed seedbank densities. We hypothesized that alfalfa mulch no-till and arbuscular mycorrhizal fungi (AMF) inoculant would be associated with reductions in weed densities and improvements to soil quality and vegetable yield. NT treatments were associated with reductions in weed densities and time required for weeding, with improvements in soi

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19

Brooker, Michael R. "Physical and Chemical Characterization of Self-Developing Agricultural Floodplains." The Ohio State University, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=osu1513778530623727.

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20

Carpenter, Daniel. "The role of earthworms in the chemical and physical weathering of soil minerals." Thesis, University of Reading, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.496963.

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Minerals are an important component of the soil environment. They provide a structural framework which supports plants and contributes to the physical heterogeneity of soil. They contribute to the fertility of soils in providing a source of essential nutrients through mineral weathering and they regulate the availability of nutrients in soil through their exchange capacity. Some minerals also affect the moisture content of soils through their ability to absorb water. Earthworms are one of the most important soil organisms, particularly in temperate ecosystems, because of the role they have in

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21

Zaman, Qamar-Uz. "Combining georeferenced physical and chemical soil data to improve agronomic and environmental efficiency." Thesis, University of Newcastle Upon Tyne, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.297549.

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22

Magomani, Matimba Israel. "The effect of fire management on chemical and physical properties of rangelands." Thesis, University of Fort Hare, 2017. http://hdl.handle.net/10353/6191.

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The use of fire in rangeland has become standard practice for decades; however, there is no shared understanding of how fire affects soil properties. The exact relationship between fire and soil properties is still yet to be understood. The differences in fire frequency, fire intensity, fire severity, the period between fire and sampling resulted in contradictory results amongst studies. A long-term trial at the University of Fort Hare provides a valuable experimental layout for fire research. The trial was established in 1980 with the aim of investigating the effect of burning frequency on ve

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23

Pereira, Bruno Laecio da Silva. "Index S as indicator of quality physical in different classes of soil." Universidade Federal do CearÃ, 2012. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=8763.

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CoordenaÃÃo de AperfeiÃoamento de Pessoal de NÃvel Superior<br>Concern for soil quality has acquired greater significance in the agricultural context. Therefore, we have sought indices assessing levels of physical deterioration suffered by the soil, depending on the management applied. The "S" index, a measure of soil physical structure, was proposed by Dexter (2004a,) and is defined by the slope of the tangent line to the inflection point of the soil water retention curve and, according to the author, is indicative of the porosity of the soil, especially its pore distribution by size and geom

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24

Ghenniwa, Abdelgiawad Mohamed. "THE PHYSICAL, CHEMICAL, AND SPECTRAL CHARACTERISTICS OF SOILS AT PAGE RANCH INTERNATIONAL CENTER, PINAL COUNTY, ARIZONA." Thesis, The University of Arizona, 1985. http://hdl.handle.net/10150/275236.

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25

Stewart, Ryan D. "Physical and Chemical Parameters of Common Soils in the Central Plateau Region of Haiti." Thesis, Virginia Tech, 2012. http://hdl.handle.net/10919/32199.

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Soil degradation is a common occurrence in Haiti that is mainly caused by the cultivation of marginal lands and deforestation, which both contribute to the excessive erosion rate seen in the country today. The Central Plateau of Haiti is a mountainous region in which a majority of the population is rural and practices subsistence agriculture on hillsides and steeply-sloping land. Essential plant nutrients, such as nitrogen (N) and phosphorus (P), are commonly a limiting factor in crop production, yet fertilizer is unavailable or is too expensive for smallholder farmers to purchase. This stu

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Stewart, Ryan. "Physical and Chemical Parameters of Common Soils in the Central Plateau Region of Haiti." Thesis, Virginia Tech, 2003. http://hdl.handle.net/10919/32199.

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Soil degradation is a common occurrence in Haiti that is mainly caused by the cultivation of marginal lands and deforestation, which both contribute to the excessive erosion rate seen in the country today. The Central Plateau of Haiti is a mountainous region in which a majority of the population is rural and practices subsistence agriculture on hillsides and steeply-sloping land. Essential plant nutrients, such as nitrogen (N) and phosphorus (P), are commonly a limiting factor in crop production, yet fertilizer is unavailable or is too expensive for smallholder farmers to purchase. This stu

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27

Toughchi, Mehrdad Abbasi. "Chemical quality of Iranian tea. Comparison with foreign tea." Master's thesis, ISA, 2017. http://hdl.handle.net/10400.5/15091.

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28

Dawes, Les A. "Role of soil physical and chemical characteristics and landscape factors in defining soil behaviour under long term wastewater dispersal." Queensland University of Technology, 2006. http://eprints.qut.edu.au/16297/.

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The use of on-site wastewater treatment systems for the treatment and dispersal of domestic effluent is common in urban fringe areas which are not serviced by centralised wastewater collection systems. However, due to inappropriate siting and inadequate evaluation of soil characteristics, the failure of these systems has become a common scenario. The current standards and guidelines adopted by many local authorities for assessing suitable site and soil conditions for on-site dispersal areas are coming under increasing scrutiny due to the public health and environmental impacts caused by poorly

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29

Phefadu, Kopano Conferance. "Physico-chemical characterization and spatial variability of soils in the research block at University of Limpopo Experimental Farm." Thesis, University of Limpopo, 2015. http://hdl.handle.net/10386/1686.

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Thesis (MSc. (Soil Science)) -- University of Limpopo, 2015<br>There exists a considerable level of spatial variability in soil physical and chemical properties within the research block; and the soils are generally shallow. Of all the measured parameters, electrical conductivity, Bray-1 P, exchangeable potassium, calcium and sodium as well as extractable iron and zinc showed a huge percent of variation across the field. Soil variability maps indicated the degree of variability within the research block. The spatial variability of the characterized parameters was significant across the researc

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30

Giacometti, Caterina <1983&gt. "Chemical, biochemical and microbiological indicators to assess soil quality in temperate agro-ecosystems." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2013. http://amsdottorato.unibo.it/5914/.

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Soil is a critically important component of the earth’s biosphere. Developing agricultural production systems able to conserve soil quality is essential to guarantee the current and future capacity of soil to provide goods and services. This study investigates the potential of microbial and biochemical parameters to be used as early and sensitive soil quality indicators. Their ability to differentiate plots under contrasting fertilization regimes is evaluated based also on their sensitivity to seasonal fluctuations of environmental conditions and on their relationship with soil chemical para

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31

Fajardo, Gabriela Isabel. "Physical and Chemical Soil Properties of Ten Virginia Department of Transportation (VDOT) Mitigation Wetlands." Thesis, Virginia Tech, 2006. http://hdl.handle.net/10919/31304.

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In 1998, the Virginia Department of Transportation (VDOT) adopted standards for soil handling and amendments to improve created non-tidal wetland soil conditions. This study was conducted in sites where these new reconstruction practices were supposedly being implemented. Specific objectives were (i) to determine the relative effects of soil reconstruction practices on mitigation site soils, (ii) to assess the degree to which hydric soil indicators were present, and (iii) to evaluate the relative edaphic potential of mitigation site soils. Soil physical, chemical and morphological properties

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32

Maribeng, Lebea. "The influence of parent material (granite and schist) on physical and chemical properties of soils on the Syferkuil Experimental Farm." Thesis, University of Limpopo (Turfloop Campus), 2007. http://hdl.handle.net/10386/606.

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Thesis (M.Sc. (Soil Science)) --University of Limpopo (Turfloop campus), 2007<br>The influence of parent material on physical and chemical properties of soil was studied on granite and schist derived soils on the Syferkuil Experimental Farm, situated in the Mankweng area of the Limpopo Province of South Africa. A total of 49 samples of virgin soils were collected, where granite soils constituted 26 samples and schist soils 23. The study design that was used is cross-sectional. The samples were analysed for physical and chemical properties. The physical properties of granite and schist so

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33

García, Iturbe Selma L. "Simulation of physical and chemical processes in reservoirs: Two case studies." Thesis, University of North Texas, 2005. https://digital.library.unt.edu/ark:/67531/metadc4968/.

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Managing water quality aspects requires the use of integrative tools that allow a holistic approach to this problem. Water quality models coupled to hydrodynamic models are these tools. This study presents the application of the water quality model WASP coupled to the hydrodynamic model DYNHYD for two distinct reservoirs: Lake Texoma and Tocoma Reservoir. Modeling the former included simulations of water velocities, water level, and four chemical and physical compounds: chlorides, dissolved oxygen (DO), biochemical oxygen demand (BOD), and total suspended solids (TSS); and validation of the re

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34

Latif, Magdi A. "Effects of legumes in a corn crop and N fertilization on soil physical quality." Thesis, McGill University, 1987. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=63815.

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35

Joosse, Pamela Jane Shantz. "Assessing physical soil quality using mechanical indices from applying internal and external stresses to remoulded and structurally intact soil samples." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp03/NQ35800.pdf.

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36

Kurek, Danielle K. "Effects of prescribed burning on soil physical, biological, and chemical properties of the Oak Openings region of Northwest Ohio." Toledo, Ohio : University of Toledo, 2010. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=toledo1271430752.

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Thesis (M.S.)--University of Toledo, 2010.<br>Typescript. "Submitted to the Graduate Faculty as partial fulfillment of the requirements for the Masters of Science Degree in Biology." "A thesis entitled"--at head of title. Title from title page of PDF document. Bibliography: p. 58-63.

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Anderson, Richard Hunter. "Soil Physical And Chemical Property Effects On Toxicity And Bioaccumulation Of As (V), Cd, Pb, And Zn By Herbaceous Plant Receptors." The Ohio State University, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=osu1220465478.

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38

Gao, Min. "CHEMICAL CHARACTERIZATION OF SOIL ORGANIC MATTER IN AN OLIGOTROPHIC, SUBTROPICAL, FRESHWATER WETLAND SYSTEM: SOURCES, DIAGENESIS AND PRESERVATION." FIU Digital Commons, 2007. http://digitalcommons.fiu.edu/etd/3625.

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Freshwater wetland soils of the Everglades were studied in order to assess present environmental conditions and paleo-environmental changes using organic geochemistry techniques. Organic matter in dominant vegetation, peat and marl soils was characterized by geochemical means. Samples were selected along nutrient and hydrology gradients with the objective to determine the historical sources of organic matter as well as the extent of its preservation. Effective molecular proxies were developed to differentiate the relative input of organic matter from different biological sources to wetland soi

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Gao, Min. "Chemical characterization of soil organic matter in an oligotrophic, subtropical, freshwatwer wetland system : sources, diagenesis and preservation." FIU Digital Commons, 2007. http://digitalcommons.fiu.edu/etd/3618.

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Freshwater wetland soils of the Everglades were studied in order to assess present environmental conditions and paleo-environmental changes using organic geochemistry techniques. Organic matter in dominant vegetation, peat and marl soils was characterized by geochemical means. Samples were selected along nutrient and hydrology gradients with the objective to determine the historical sources of organic matter as well as the extent of its preservation. Effective molecular proxies were developed to differentiate the relative input of organic matter from different biological sources to wetland soi

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40

Van, de Water James Gordon 1963. "Physical and chemical processes affecting forced ventilation of benzene and p-xylene in a desert soil." Thesis, The University of Arizona, 1989. http://hdl.handle.net/10150/277044.

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The rate at which volatile organic compounds (VOCs) are removed from the vadose zone by forced ventilation may be reduced by slow micro-scale processes such as diffusion through intra-aggregate and pore water and slow reactions at sorption sites located at the soil-water interface. Column experiments using benzene and p-xylene were performed in order to simulate cleanup of VOC's in the vadose zone by forced ventilation. Analytical solutions of the one-dimensional advection-dispersion equation coupled to mass transfer equations were fitted to the data. Parameter estimates were used in order to

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41

Cataldi, Joseph Derik. "Effects of Biosolids on Tall Fescue-Kentucky Bluegrass Sod Production and Soil Chemical and Physical Properties." Thesis, Virginia Tech, 2013. http://hdl.handle.net/10919/51159.

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Composted biosolids have been shown to enhance turfgrass establishment and growth more than fertilizer alone, but few studies have investigated the production of turfgrass using uncomposted biosolids. Increasingly employed treatment methods that generate pathogen-free, low pollutant-containing biosolids are creating alternative products for use in urban settings. Understanding the effects of these uncomposted and alternative biosolids products on turfgrass culture and soil chemical and physical properties is essential to understanding the benefits these products may provide in sod production

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42

Johnston, Christopher R. "Soil chemical and physical changes resulting from irrigation with coalbed natural gas co-produced water effects of soil amendments and water treatments /." Laramie, Wyo. : University of Wyoming, 2007. http://proquest.umi.com/pqdweb?did=1445033651&sid=10&Fmt=2&clientId=18949&RQT=309&VName=PQD.

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43

Takano, Hiroyuki. "Investigation of chemical and physical properties of southwestern Wisconsin maple syrup." Menomonie, WI : University of Wisconsin--Stout, 2006. http://www.uwstout.edu/lib/thesis/2006/2006takanoh.pdf.

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44

Silva, Junior João Fernandes da [UNESP]. "Métodos geoestatísticos na caracterização espacial de óxidos de ferro em diferentes pedoformas." Universidade Estadual Paulista (UNESP), 2012. http://hdl.handle.net/11449/88229.

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Made available in DSpace on 2014-06-11T19:23:10Z (GMT). No. of bitstreams: 0 Previous issue date: 2012-02-27Bitstream added on 2014-06-13T20:30:04Z : No. of bitstreams: 1 silvajunior_jf_me_jabo.pdf: 787738 bytes, checksum: 7b3e41cb53972e8468ad03ecb64cfbe1 (MD5)<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)<br>Os óxidos de ferro são importantes indicadores ambientais e possuem grande influência nos atributos físicos e químicos do solo. Entretanto, para o melhor entendimento de sua formação e ocorrência são necessários estudos de variabilidade espacial. A geoestatístic

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West, Eric. "Effects Of Both Above And Below Ground Biomass On Soil Chemical, Physical And Biological Properties On A Coastal Plain Soil In North Carolina." NCSU, 2010. http://www.lib.ncsu.edu/theses/available/etd-02222010-194850/.

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The literature has shown the possibility to enhance many of the soil properties that improve production with additions of plant biomass to the soil in conjunction with long-term conservation tillage. Since it has been proven that reduced tillage is extremely beneficial to a soilâs health, the key question is if the incorporation of deep rooted cover crops and/or large quantities of above ground biomass over a two-year period would result in extensive improvements on a soilâs natural properties throughout the effective rooting depth, or is this too short of a time period for any beneficial effe

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Muhammad, Husni J. "The physical and chemical characterisation of Iraqi and Spanish gypsiferous soils, with detailed studies on the chemistry of phosphorus." Thesis, Lancaster University, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.314586.

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Seymour, Geoff, and Aregai Tecle. "Impact of Slash Pile Burning on Physical and Chemical Characteristics of Soil in a Ponderosa Pine Forest." Arizona-Nevada Academy of Science, 2002. http://hdl.handle.net/10150/296577.

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Dickie, Jennifer Ann. "Relationships among the physical and chemical properties of soil, vegetation and land degradation in semi-arid environments." Thesis, University of Leicester, 2006. http://hdl.handle.net/2381/30410.

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This study examines the spatial patterns of soil parameters to test the hypothesis that shrub encroachment initiates a change in scale of soil heterogeneity, which consequently influences a landscape's biotic and abiotic interactions and thus the susceptibility of soil to erosion. Grassland, shrubland and badland sites were established in two semi-arid environments; the Karoo, South Africa and the Sevilleta National Wildlife Refuge, New Mexico, U.S. 108 soil samples from each of the eleven 60m x 60m plots were analysed for bulk density, shear strength, texture, aggregate stability, organic mat

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Schmidt, Dewcille. "Effect of crossbreeding and reproduction rate on sensory, physical and chemical quality of lamb and mutton." Thesis, Stellenbosch : Stellenbosch University, 2002. http://hdl.handle.net/10019.1/52816.

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Doyle, Steven Doyle. "Relationships Between Cropping Practices, Soil Quality, and Maize (Zea mays L) Yield in Morogoro Region, Tanzania." The Ohio State University, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=osu1528987286318244.

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