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Dissertations / Theses on the topic 'Soil salinity'

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Published: 4 June 2021

Last updated: 25 July 2025

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1

Mortl, Amanda E. "Monitoring soil moisture and soil water salinity in the Loxahatchee floodplain." [Gainesville, Fla.] : University of Florida, 2006. http://purl.fcla.edu/fcla/etd/UFE0015734.

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2

Klopp, Hans Walter. "Soil Salinity and Sodicity Impacts on Soil Shrinkage, Water Movement and Retention." Thesis, North Dakota State University, 2015. https://hdl.handle.net/10365/27879.

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Saline, sodic, and saline-sodic ground waters are problematic throughout the Northern Great Plains and Red River Valley. High sodium adsorption ratio (SAR) and low electrical conductivity (EC) of soil solution and irrigation waters are known to create issues with saturated soil hydrologic conductivity. Our objective was determine the impact of saline, sodic and saline-sodic solutions on soil shrinkage and soil hydrologic properties. Soil shrinkage, water retention, and hydraulic conductivity were determined on a variety of soil textures following saturation with salt solutions of variable EC a

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3

Sabia, Roberto. "Sea surface salinity retrieval error budget within the esa soil moisture and ocean salinity mission." Doctoral thesis, Universitat Politècnica de Catalunya, 2008. http://hdl.handle.net/10803/30542.

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L’oceanografia per satèl•lit ha esdevingut una integració consolidada de les tècniques convencionals de monitorització in situ dels oceans. Un coneixement precís dels processos oceanogràfics i de la seva interacció és fonamental per tal d’entendre el sistema climàtic. En aquest context, els camps de salinitat mesurats regularment constituiran directament una ajuda per a la caracterització de les variacions de la circulació oceànica global. La salinitat s’utilitza en models oceanogràfics predictius, pero a hores d’ara no és possible mesurar-la directament i de forma global. La missió Soil Mois

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4

Wong, Vanessa Ngar Lai. "The effects of salinity and sodicity on soil organic carbon stocks and fluxes /." View thesis entry in Australian Digital Theses Program, 2007. http://thesis.anu.edu.au/public/adt-ANU20080428.223144/index.html.

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5

Ries, Mackenzie Lynn. "The Effect of Salinity on Soil Microbial Community Structure." Thesis, North Dakota State University, 2020. https://hdl.handle.net/10365/31807.

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Soil salinity is a widespread problem that affects crop productivity. We expect that saline soils also have altered microbial community structure, soil food webs and related soil properties. To test this, we sampled field soils across four farms in eastern North Dakota that host salinity gradients. We evaluated microbial biomass carbon, phospholipid fatty acid analysis and nematode counts in moderately saline and low saline soils. Additionally, we measured soil properties that represent potential food sources and habitat characteristics that influence microbial communities. We found higher mic

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6

Walworth, James, and Thomas L. Thompson. "Salinity Management and Soil Amendments for Southwestern Pecan Orchards." College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 2006. http://hdl.handle.net/10150/146654.

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7

Walworth, J. L. "Salinity Management and Soil Amendments for Southwestern Pecan Orchards." College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 2011. http://hdl.handle.net/10150/239609.

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8

Stong, Matthew Harold. "Development of Remote Sensing Techniques for Assessment of Salinity Induced Plant Stresses." Diss., The University of Arizona, 2008. http://hdl.handle.net/10150/194858.

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Salinity has been shown to reduce vegetative growth, crop quality, and yield in agricultural crops. Remote sensing is capable of providing data about large areas. This project was designed to induce salinity stress in a crop, pak choi, and thereafter monitor the response of the crop as expressed by its spectral reflectances. The project was conducted in the National Taiwan University Phytotron, and spectral data was collected using a GER 2600. Yield and soil salinity (ECe) were also measured. After three seasons of data were collected, wavelengths sensitive to salinity were selected. The

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9

Talone, Marco. "Contributrion to the improvement of the soil moisture and ocean salinity (SMOS) sea surface salinity retrieval algorithm." Doctoral thesis, Universitat Politècnica de Catalunya, 2010. http://hdl.handle.net/10803/48633.

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The European Space Agency's Soil Moisture and Ocean Salinity (SMOS) satellite was launched on November, 2, 2009 from the Russian cosmodrome of Plesetsk. Its objective is to globally and regularly collect measurements of soil moistre and Sea Surface Salinity (SSS). To do that, a pioneering instru- ment has been developed: the Microwave Imaging Radiometer by Aperture Synthesis (MIRAS), the rst space-borne, 2-D interferometric radiometer ever built; it operates at L-band, with a central frequency of 1.4135 GHz, and consists of 69 antennas arranged in a Y shape array. MIRAS' output are br

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10

Wong, Vanessa, and u2514228@anu edu au. "The effects of salinity and sodicity on soil organic carbon stocks and fluxes." The Australian National University. Faculty of Science, 2007. http://thesis.anu.edu.au./public/adt-ANU20080428.223144.

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Soil is the worlds largest terrestrial carbon (C) sink, and is estimated to contain approximately 1600 Pg of carbon to a depth of one metre. The distribution of soil organic C (SOC) largely follows gradients similar to biomass accumulation, increasing with increasing precipitation and decreasing temperature. As a result, SOC levels are a function of inputs, dominated by plant litter contributions and rhizodeposition, and losses such as leaching, erosion and heterotrophic respiration. Therefore, changes in biomass inputs, or organic matter accumulation, will most likely also alter these levels

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11

Al-Sibai, Mahmoud. "Movement of solutes in structured soils during intermittent leaching : a theoretical and laboratory study." Thesis, University of Newcastle Upon Tyne, 1996. http://hdl.handle.net/10443/509.

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Soil salinity is one of the major problems in and and semi-arid zones, affecting up to 50% of arable land in Syria. Salt-affected soils are usually desalinized by leaching the excess salts out of the soil profile. Some studies have shown that applying the leaching water intermittently instead of continuously may result in more efficient leaching. This thesis aims to investigate, theoretically and experimentally, the benefits and limitations of intermittent leaching and to develop mathematical models able to simulate solute transport through structured soils under such conditions. Laboratory le

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12

Huang, Longbin. "Interactions between sulphur dioxide and soil salinity in wheat plants." Thesis, Huang, Longbin (1993) Interactions between sulphur dioxide and soil salinity in wheat plants. PhD thesis, Murdoch University, 1993. https://researchrepository.murdoch.edu.au/id/eprint/51916/.

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Increasing sulphur dioxide (SO2) concentration in the atmosphere with expansions of electricity production and mineral processing in the world has led to numerous studies and understandings of adverse impacts of SO2 on growth and physiology of plants in Although there have been many studies on SO2 dose-response (physiology, growth, and (or) yield) relationships in plants, there is a lack of understanding of influences of environmental stress such as NaCl salinity, on plant responses to elevated SO2 concentrations in the air, which may occur in agricultural areas such as India, China and Austra

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13

Schuch, Ursula K., James Walworth, Tilak Mahato, and Andrew Pond. "Accumulation of Soil Salinity in Landscapes Irrigated with Reclaimed Water." College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 2008. http://hdl.handle.net/10150/216640.

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The long-term use of reclaimed water for landscape maintenance and the effects on soil chemistry and soil structure were investigated. Irrigation with reclaimed versus potable water for five years or more affects chemical properties of soil. Soils irrigated with reclaimed versus potable water had higher EC. Monsoon precipitation had less of a leaching effect than anticipated and significantly reduced EC only on two out of 13 sites. Soils irrigated with reclaimed water had higher SAR values than those irrigated with potable water and can potentially develop infiltration problems in the future.

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14

Owojori, Olugbenga J. (Olugbenga John). "Influence of clay content and salinity on the bioavailability and toxicity of metals (copper and zinc) to soil organisms." Thesis, Stellenbosch : University of Stellenbosch, 2009. http://hdl.handle.net/10019.1/1484.

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Thesis (PhD (Botany and Zoology))—University of Stellenbosch, 2009.<br>ENGLISH ABSTRACT: Metal pollution is a problem of increasing global concern. It could arise from industrial activities, as well as pesticide use in agriculture, among other sources. For adequate protection of the soil ecosystem from metal toxicity, the bioavailability of metals must be properly evaluated. A plethora of soil factors affect the bioavailability of metals to soil organisms. These include pH, clay and organic matter contents, salinity among others. While much is known about the influence of some of these p

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15

Amer, Saud Abdulaziz 1953. "SPECTRAL REFLECTANCE MEASUREMENTS OF SALT-AFFECTED SOIL." Thesis, The University of Arizona, 1987. http://hdl.handle.net/10150/276542.

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Salt-affected soils have undermined the effectiveness of agricultural development of considerable areas of the world, especially in the arid and semi-arid regions. This research is set out for the direct measurement of salt-affected soil. Two experiments were conducted to study the influence of different salt types and concentrations on spectral reflectance of soil. In the first experiment, five different salts (Na₂SO₄, NaHCO₃, CaCO₃, CaCl₂ and NaCl) were mixed individually with Gila soil at 0.51, 1.51 and 3.0% by weight. The second experiment was conducted to examine the spectral response of

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16

Ghorbani, Hadi. "Sludge application and salinity on the bioavailability of cadmium in soil." Thesis, University of Reading, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.413487.

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17

Ma, Qifu. "Soil salinity and water stress modify crop sensitivity to SO2 exposure." Thesis, Ma, Qifu (1993) Soil salinity and water stress modify crop sensitivity to SO2 exposure. PhD thesis, Murdoch University, 1993. https://researchrepository.murdoch.edu.au/id/eprint/42300/.

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Sulphur dioxide (SO2) is a pnmary gaseous pollutant which has toxic effects on the growth, yield and quality of both agricultural and natural plant species. Although plant responses to SO2 exposure have been extensively studied, much less is understood concerning the influences of other environmental stresses on the expression of effects of gaseous air pollutants. Evaluation of such interactions should be of an economic importance in agriculture and horticulture since plants growing in the field usually encounter air pollution and other stresses simultaneously. Soil water stress and salinity a

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18

Gillespie, Trudi. "Genetic variation in salt tolerance of four African Acacia species." Thesis, Bangor University, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.327422.

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19

Khandker, Md Humayun Kabir. "Crop growth and water-use from saline water tables." Thesis, University of Newcastle Upon Tyne, 1994. http://hdl.handle.net/10443/580.

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How much water can a crop abstract from below a saline water table and how does the salinity affect yield? These questions are important because shallow groundwater may represent a substantial resource in flat, low-lying areas, but may also represent a threat to sustainability where salinity is high. A series of experiments in a glasshouse aimed to elucidate irrigation management practice under salinity conditions and to develop a root uptake model under both osmotic and matric stresses. The extraction of soil water and groundwater by lettuce and perennial ryegrass crops were measured in three

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20

Sameni, A.-M. "The effect of salinity and sodicity on the structure and hydraulic conductivity of soil." Thesis, University of Reading, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.234545.

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21

Aloy, i. Lleonart Merce. "Leaf ion concentrations and salt tolerance in barley." Thesis, Bangor University, 1994. https://research.bangor.ac.uk/portal/en/theses/leaf-ion-concentrations-and-salt-tolerance-in-barley(b9c4ca87-24dd-424d-b5f6-7c8f24c3a886).html.

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Breeding and selection for salt tolerance has been limited because of the large heterogeneity of natural saline soils and the lack of efficient criteria for measuring salt tolerance. Regulation of salt balances in leaves is an important aspect of salt tolerance. This work analyses the relationship between leaf ion concentrations and salt tolerance with the aim of using these traits as indicators of salt tolerance. This is done both in solution culture (hydroponics) and field trials (sprinkler irrigation with saline water). Varieties were found to differ in the amounts of ions accumulated in th

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22

Al-Ismaily, Said Salim. "Nitrogen mineralization of manure-amended soil: Effects of salinity and moisture content." Diss., The University of Arizona, 2004. http://hdl.handle.net/10150/290018.

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Application of manure has been used to increase the nitrogen status of many arid and semi-arid agricultural soils, however, organic nitrogen contained in animal manures must be mineralized prior to utilization by crops. Nitrogen mineralization is, like other biological processes, affected by soil water status. This can be due to the direct influence of soil moisture and/or salt interactions on the nitrogen dynamics. It is critical to understand the interactive effects of salt and water on nitrogen in soils amended with organic fertilizer. Such knowledge may be used for improving and quantifyin

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23

Jayasekera, Samudra University of Ballarat. "An investigation into modification of the engineering properties of salt affected soils using electrokinetics." University of Ballarat, 2008. http://archimedes.ballarat.edu.au:8080/vital/access/HandleResolver/1959.17/12805.

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Soil salinity (due to ingress of excess amounts of dissolved salts in soil pores) and soil sodicity (due to excess amounts of sodium ions attached to the clay surface) are significant forms of land degradation in many parts of the world in particular in arid and semi arid regions. In Australia, soil salinity has long been identified as the major form of land degradation and the greatest environmental threat. Saline soils cover almost 6% of Australia’s land mass and impose severe threats on agricultural productivity and built infrastructure with an estimated annual loss of $250 million. In rece

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24

Molatakgosi, Goitsemodimo. "Impact of infield irrigation management by Botswana cabbage farmers on soil salinity." Thesis, Cranfield University, Cranfield University at Silsoe, 2005. http://hdl.handle.net/1826/1224.

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Some vegetable farmers in the semi- arid Botswana are struggling or closing down their enterprises citing the cost of irrigation and salty water as the problem. Irrigation with water from the salt-laden underground water is known to be the main sources of salts for arid and semi-arid agricultural land. Crops grown in saline environments show symptoms similar to those shown by drought-affected crops hence more irrigation is needed therefore increasing the irrigation cost. Research from other semi arid areas shows that water with high salinity levels can be used for irrigation without increasing

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25

Khuori, Nabil. "A study of the potential of dry drainage for controlling soil salinity." Thesis, University of Newcastle upon Tyne, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.239795.

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26

Samak, Abdel-Lateif Abdel-Wahab [Verfasser]. "Soil moisture, crop yield and soil salinity relocation under partial rootzone drying irrigation / Abdel-Lateif Abdel-Wahab Samak." Hannover : Technische Informationsbibliothek und Universitätsbibliothek Hannover (TIB), 2012. http://d-nb.info/1024386198/34.

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27

Gerhart, Vanda Jane. "Optimizing Native and Landscape Plant Establishment Under Marginal Soil and Water conditions in Southwestern Deserts." Diss., Tucson, Arizona : University of Arizona, 2005. http://etd.library.arizona.edu/etd/GetFileServlet?file=file:///data1/pdf/etd/azu%5Fetd%5F1026%5F1%5Fm.pdf&type=application/pdf.

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28

Jayasekera, Samudra. "An investigation into modification of the engineering properties of salt affected soils using electrokinetics." Thesis, University of Ballarat, 2008. http://researchonline.federation.edu.au/vital/access/HandleResolver/1959.17/34198.

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Soil salinity (due to ingress of excess amounts of dissolved salts in soil pores) and soil sodicity (due to excess amounts of sodium ions attached to the clay surface) are significant forms of land degradation in many parts of the world in particular in arid and semi arid regions. In Australia, soil salinity has long been identified as the major form of land degradation and the greatest environmental threat. Saline soils cover almost 6% of Australia’s land mass and impose severe threats on agricultural productivity and built infrastructure with an estimated annual loss of $250 million. In rece

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29

Jayasekera, Samudra. "An investigation into modification of the engineering properties of salt affected soils using electrokinetics." University of Ballarat, 2008. http://archimedes.ballarat.edu.au:8080/vital/access/HandleResolver/1959.17/15710.

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Soil salinity (due to ingress of excess amounts of dissolved salts in soil pores) and soil sodicity (due to excess amounts of sodium ions attached to the clay surface) are significant forms of land degradation in many parts of the world in particular in arid and semi arid regions. In Australia, soil salinity has long been identified as the major form of land degradation and the greatest environmental threat. Saline soils cover almost 6% of Australia’s land mass and impose severe threats on agricultural productivity and built infrastructure with an estimated annual loss of $250 million. In rece

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30

Ali, Abdul-Mehdi Saleh. "Reactions of urea phosphate in calcareous and alkaline soils: Ammonia volatilization and effects on soil sodium and salinity." Diss., The University of Arizona, 1989. http://hdl.handle.net/10150/184694.

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Nitrogen (N) loss in the form of volatilized ammonia (NH₃) is a considerable problem when ammonium (NH₄⁺) forming fertilizers are applied to calcareous or alkaline soils. Large areas of agricultural land, contain alkalinity and salinity problems, are potentially suitable for crop production with little alteration. This study was conducted to determine and compare the effectiveness of urea phosphate (UP) in reducing soil alkalinity and NH₃ loss. The volatilization of NH₃ from UP and urea (U) was studied on 3 selected soils (Hayhook SL, Laveen L and Latene L) using an aeration system. Urea phosp

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31

Omar, Mohamed Abdel-Hamed Mohamed. "Physiological investigations of the response of wheat (Triticum aestivum L.) to soil salinity." Thesis, University of Newcastle Upon Tyne, 1986. http://hdl.handle.net/10443/594.

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A series of greenhouse and control environment experiments were carried out to study the response of some wheat cultivars (Triticum aestivum L. ) to soil salinity. The rate and percentage of seed germination were reduced by increasing soil salinity. The cultivar Falchetto was more tolerant in terms of germination than the other cultivars under saline conditions. Increasing salinity consistently reduced the growth and dry matter production of all wheat cultivars used. The most sensitive growth character to salinity was leaf area and tiller number while net assimilation rate was least sensitive

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32

Folefoc, Asongbecap Daniel. "Geochemical study of soil salinity in a toposequence near Riebeeck West, South Africa." Master's thesis, University of Cape Town, 2005. http://hdl.handle.net/11427/10448.

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Bibliography: leaves 84-91.<br>A geochemical investigation of salt distribution in soils of the semi-arid of Western Cape, South Africa, was carried out following a pilot study which revealed widespread soil salinity in the Berg River catchment. The present study looks at the distribution of the salts along a toposequence in a subcatchment of the Berg River underlain by Malmesbury Group shale. The objectives were: to investigate salt distribution in relation to landscape topography; to identify potentially harmful trace elements associated with the salinity; and to determine the processes resp

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33

Scudiero, Elia. "Multiscale Soil Salinity Assessment at the Southern Margin of the Venice Lagoon, Italy." Doctoral thesis, Università degli studi di Padova, 2013. http://hdl.handle.net/11577/3422637.

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Saltwater intrusion affects many coastlands around the world contaminating fresh-groundwater and decreasing soil quality. In order to manage saline soils one should understand the spatiotemporal dynamics of salinity in the soil profile and its spatial variability at field scale. In the last decades, soil and pore-water salinity have been assessed using geophysical techniques, most commonly with the use of apparent electrical conductivity (ECa) measurements. At point-scale, pore-water salinity can be estimated once its relationship with ECa, soil properties, and water content is understood. Mor

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34

Hawks, Austin McCoy. "Salinity Inventory and Tolerance Screening in Utah Agriculture." DigitalCommons@USU, 2009. https://digitalcommons.usu.edu/etd/546.

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Soil salinity, a yield-limiting condition, has plagued crop production for centuries by reducing crop productivity. Research has introduced methods for successfully managing soil salinity. This research discusses the adaptation of established management methods to create new soil salinity management techniques. One adapted technique is an automated crop screening apparatus. A new design was created and successfully used in rapidly screening two strawberry cultivars to determine their tolerance to salinity. Screening crops and determining their tolerance to yield-limiting conditions are

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35

Bahizire, François B. "Effect of salinity on germination and seedling growth of canola (Brassica napus L.) /." Link to the online version, 2007. http://hdl.handle.net/10019.1/1939.

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36

Al-Hazzouri, Abbas Ahmad 1949. "Effect of soil salinity and acidity on the germination of Quercus emoryi and Robinia neo-mexicana seeds." Thesis, The University of Arizona, 1987. http://hdl.handle.net/10150/291761.

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The purpose of the study was to determine the effect of four salt concentrations and four acid levels of soil solution on the germination of Quercus emoryi and Robinia neo-mexicana seeds, and to study the effects of the cation concentration changes in solution (Na, Ca, Mg, K) and exchangeable cation concentration. The solution extracts and exchange phases of both soils, salt accumulation in the soil increased by increasing the salinity and acidity of the water applied. Exchangeable sodium was related directly to the SAR of the applied solutions. The soil responded differently to the salty wate

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37

Diatta, Andre Amakobo. "Effects of Biochar Application on Soil Fertility and Pearl Millet (Pennisetum glaucum L.) Yield." Thesis, Virginia Tech, 2016. http://hdl.handle.net/10919/80944.

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Biochar amendment to agricultural soils has been promoted for use in agricultural systems, both to mitigate global warming by increasing long-term soil carbon (C) sequestration and to enhance soil fertility and crop productivity. The objective of this study was to evaluate the effects of a single biochar application from peanut shell (Arachis hypogea L.) and mixed pine (Pinus spp.) wood to a Typic Hapludults in Blacksburg (VA, USA) and from peanut shell and eucalyptus (Eucalyptus camaldulensis) wood to a tropical, sandy, salt-affected soil in Ndoff (Fatick, Senegal) at 0, 10, and 20 Mg ha⁻¹ on

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38

Abd-Elwahed, Mohammed Saifeldeen. "Assessment of Soil Salinity Problems in Agricultural Areas Through Spatial and Temporal Remote Sensing." Diss., Tucson, Arizona : University of Arizona, 2005. http://etd.library.arizona.edu/etd/GetFileServlet?file=file:///data1/pdf/etd/azu%5Fetd%5F1380%5F1%5Fm.pdf&type=application/pdf.

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39

Amakor, Xystus N. "Using Electromagnetic Induction Sensing to Understand the Dynamics and Interacting Factors Controlling Soil Salinity." DigitalCommons@USU, 2013. https://digitalcommons.usu.edu/etd/1723.

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Soil salinization is of great concern in the irrigated arid and semi-arid western United States due to its threat to sustainable agricultural productivity and thus is closely monitored. A widely accepted and traditional standard method for estimating soil salinity is the electrical conductivity of the saturated paste extracts (ECe). However, this method underestimates salinity due to ion pair formation in high ionic strength solution. Numerous studies have recommended the use of an electromagnetic induction (EMI) sensing technique to monitor field-scale soil salinity due to rapidness and non-d

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40

Arif, Hamayun. "Water relations of salt stressed wheat." Thesis, Bangor University, 1990. https://research.bangor.ac.uk/portal/en/theses/water-relations-of-salt-stressed-wheat(b523794e-42f4-4165-bb35-11f07b7bbf28).html.

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The present study was conducted to investigate the water relations of individual plant cells and the biophysical parameters controlling plant growth in the context of salt stress. Growth and water relations were studied in growing as well as in mature zones of the first emerged leaf of wheat seedlings (cv. Flanders, a British variety) in the context of NaCl stress. Various levels of NaCl (0,25,50,75,100,125 and 150 mol m) -3 were used to salinize the media. I In the case of leaf elongation rate a two phase response was found i. e. an immediate decrease and then, a recovery in the elongation ra

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41

Ripley, Dana Cameron. "Changes in Soil Salinity Levels with the Use of Recycled Water on Cool Season Vegetables." DigitalCommons@CalPoly, 2013. https://digitalcommons.calpoly.edu/theses/1111.

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Agricultural production in Monterey County, California is a multi-billion dollar industry. Near the coast, seawater intrusion has threatened to degrade the groundwater quality due to over-pumping of the aquifer. The Monterey Regional Water Pollution Control Agency (MRWPCA), in partnership with the Monterey County Water Resources Agency, has provided recycled water since 1998 to over 12,000 acres of prime agricultural farmland in the northern Salinas Valley in an effort to reduce groundwater removal. The dominant soil types in the region are clay loam and clay soils, which are both susceptible

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42

Barr, N. F. "Salinity control, water reform and structural adjustment : the Tragowel Plains Irrigation District /." Connect to thesis, 1999. http://eprints.unimelb.edu.au/archive/00000230/l.

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43

Simó, Josa Iolanda. "The european framework for soil sustainability: mapping soil quality in model areas in Catalonia." Doctoral thesis, Universitat de Lleida, 2016. http://hdl.handle.net/10803/385616.

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Soil degradation is defined as a decrease in soil quality, which is caused by non sustainable soil management. When the soil is losing its functionality is directly related with decreasing soil quality. This PhD proposes a scheme of intrinsic soil indicators for determining soil quality. This scheme includes three different sets of soil quality indicators derived from basic soil use criteria. Such criteria is based upon indicator availability, suitability and usefulness. These indicators are grouped according to three different soil threats; declining organic matter, desertification and

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44

Medeiros, Wiliana JÃlia Ferreira de. "Responses and adaptations of young plants of dwarf coconut - green to soil salinity and waterlogging." Universidade Federal do CearÃ, 2016. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=16901.

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CoordenaÃÃo de AperfeiÃoamento de Pessoal de NÃvel Superior<br>The coconut crop in Brazil stands out for its economic and social importance. The coconut cultivation has been in troduced in several regions of the country, however, the Northeast stands out with the largest plantations and production. Currently, a major problem in the agricultural sector, especially in semi-arid regions, has been the process of soil salinization. This problem is accentuated by the use of water with high salt concentration. Another factor existing in saline environments

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45

Wallace, Casey Ruth. "Riparian Graminoid Species Responses and Productivity in Compromised Environmental and Soil Conditions." Thesis, North Dakota State University, 2019. https://hdl.handle.net/10365/31731.

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Riparian buffers have been created as a sustainable and effective way to combat the harmful effects of excess nitrogen and soil salinity in riparian settings. The goal of this research was to determine what species will I) germinate in saline environments and II) establish and produce sufficient biomass while being exposed to increased nitrogen. Incubation of eight native riparian graminoid species were evaluated for their ability to germinate in MgSO4-induced salinity. In a greenhouse study, seven riparian graminoid species were evaluated to quantify their ability to survive and take up nitro

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46

Aluvilu, Anastasia N. "Responses of capsicum frutescenes cultivar serrano and capsicum annuum cultivar capistrano to meloidogyne incognita race 2,salinity and growth period." Thesis, University of Limpopo (Turfloop Campus), 2010. http://hdl.handle.net/10386/858.

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Ado, Maman Nassirou. "Evaluation in situ et en conditions contrôlées de la phytodésalinisation des Vertisols irrigués. Cas d’étude du périmètre rizicole de Kollo (Niger) dans la vallée du fleuve Niger." Thesis, Rennes, Agrocampus Ouest, 2017. http://www.theses.fr/2017NSARD082/document.

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L’objectif général de ce travail est de comprendre et d’évaluer le rôle des cultures, à fort développement racinaire et susceptibles de se développer en milieu salin et saturé, sur le processus de phytodésalinisation des Vertisols. L’étude est réalisée sur le périmètre irrigué de Kollo (Niger) dans la vallée du fleuve Niger et couple deux expérimentations : i) la première in situ teste la capacité de Echinochloa stagnina à dessaler les Vertisols durant 15 mois en comparaison avec le riz (Oriza sativa) et le sol nu submergé et ii) la deuxième, au laboratoire sur des colonnes du sol, étudie l’ef

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Silva, Alexandre Reuber Almeida da. "Responses and adaptations of coconut plants "Green Dwarf" to interactions between water stress and soil salinity." Universidade Federal do CearÃ, 2015. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=14726.

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Conselho Nacional de Desenvolvimento CientÃfico e TecnolÃgico<br>CoordenaÃÃo de AperfeiÃoamento de Pessoal de NÃvel Superior<br>In this work morphological, physiological, biochemical and nutritional responses, to elucidate the possible adaptive strategies of young coconut plants, cultivating "Green Dwarf", involved with tolerance to the effects of stress isolated and combined soil salinity and water stress. In the experiment, conducted in a greenhouse, the greenhouse type, in Fortaleza, CearÃ, were evaluated under statistical design of randomized blocks in a split plot arrangement, the effects

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Thapa, Resham. "Spring Wheat (Triticum aestivum L.) Response to Nitrogen (N) Loss Management and Sulfate-Based Soil Salinity." Thesis, North Dakota State University, 2016. https://hdl.handle.net/10365/27961.

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The first study was conducted during 2014 growing season at Glyndon, MN to evaluate the effectiveness of nitrification inhibitor or both urease and nitrification i.e. double inhibitors on reducing N losses in a rainfed spring-wheat (Triticum aestivum L.) system. Our findings suggested that amending urea with double inhibitors might be an effective strategy to reduce all possible N losses without compromising crop yields from urea-fertilized soils. The second study was conducted to understand the responses of spring-wheat to sulfate-based salinity stress under greenhouse and field conditions. R

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Nava, Leon Jose Angel 1956. "CHLORIDE AND NITRATE DISTRIBUTION IN THE SOIL WITH FURROW AND BURIED DRIP IRRIGATION (SALINITY, SANDY LOAM)." Thesis, The University of Arizona, 1986. http://hdl.handle.net/10150/276671.

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