Academic literature on the topic 'Texture contrast soil'
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Journal articles on the topic "Texture contrast soil"
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Laffan, M. D., and T. J. Kingston. "Earthworms in some Tasmanian forest soils in relation to bioturbation and soil texture profile." Soil Research 35, no. 6 (1997): 1231. http://dx.doi.org/10.1071/s96076.
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Soil properties and earthworm population density were examined for 5 forest soils derived from Silurian-Devonian sandstones (Mathinna Beds) in north-eastern Tasmania. The soils occur along gradients of altitude, rainfall, and forest type; they include 2 with texture-contrast and 3 with gradational soil profile types. The density and biomass of the most abundant earthworm species Megascolex montisarthuri, and of all earthworm species combined, were found to be greater in gradational than in texture-contrast soils. A greater proportion of the earthworms in gradational soils than in texture-contrast soils was found to occur at soil depths exceeding 10 cm. The contrast was most pronounced between the 2 texture-contrast soils and the single gradational soil that occur under dry eucalypt forest. This paper explores the hypothesis that bioturbation of surface and subsurface layers by earthworms is an important mixing process that in gradational soils outweighs the counter tendency for soil particles to sort and thus form texture-contrast profiles.
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Hardie, Marcus A., Richard B. Doyle, William E. Cotching, and Shaun Lisson. "Subsurface Lateral Flow in Texture-Contrast (Duplex) Soils and Catchments with Shallow Bedrock." Applied and Environmental Soil Science 2012 (2012): 1–10. http://dx.doi.org/10.1155/2012/861358.
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Development-perched watertables and subsurface lateral flows in texture-contrast soils (duplex) are commonly believed to occur as a consequence of the hydraulic discontinuity between the A and B soil horizons. However, in catchments containing shallow bedrock, subsurface lateral flows result from a combination of preferential flow from the soil surface to the soil—bedrock interface, undulations in the bedrock topography, lateral flow through macropore networks at the soil—bedrock interface, and the influence of antecedent soil moisture on macropore connectivity. Review of literature indicates that some of these processes may also be involved in the development of subsurface lateral flow in texture contrast soils. However, the extent to which these mechanisms can be applied to texture contrast soils requires further field studies. Improved process understanding is required for modelling subsurface lateral flows in order to improve the management of waterlogging, drainage, salinity, and offsite agrochemicals movement.
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Minasny, Budiman, Alex B. McBratney, Damien J. Field, Grant Tranter, Neil J. McKenzie, and Daniel M. Brough. "Relationships between field texture and particle-size distribution in Australia and their implications." Soil Research 45, no. 6 (2007): 428. http://dx.doi.org/10.1071/sr07051.
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This paper aims to establish the means and ranges of clay, silt, and sand contents from field texture classes, and to investigate the differences in the field texture classes and texture determined from particle-size analysis. The results of this paper have 2 practical applications: (1) to estimate the particle size distribution and its uncertainty from field texture as input to pedotransfer functions, and (2) to examine the criteria of texture contrast soils in the Australian Soil Classification system. Estimates of clay, silt, and sand content for each field texture class are given and this allows the field texture classes to be plotted in the texture triangle. There are considerable differences between field texture classes and particle-size classes. Based on the uncertainties in determining the clay content from field texture, we establish the probability of the occurrence of a texture contrast soil according to the Australian Soil Classification system, given the texture of the B2 horizon and its overlying A horizon. I enjoy doing the soil-texture feel test with my fingers or kneading a clay soil, which is a short step from ceramics or sculpture. Hans Jenny (1984)
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Cotching, W. E., G. Oliver, M. Downie, R. Corkrey, and R. B. Doyle. "Land use and management influences on surface soil organic carbon in Tasmania." Soil Research 51, no. 8 (2013): 615. http://dx.doi.org/10.1071/sr12251.
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The effects of environmental parameters, land-use history, and management practices on soil organic carbon (SOC) concentrations, nitrogen, and bulk density were determined in agricultural soils of four soil types in Tasmania. The sites sampled were Dermosols, Vertosols, Ferrosols, and a group of texture-contrast soils (Chromosol and Sodosol) each with a 10-year management history ranging from permanent perennial pasture to continuous cropping. Rainfall, Soil Order, and land use were all strong explanatory variables for differences in SOC, soil carbon stock, total nitrogen, and bulk density. Cropping sites had 29–35% less SOC in surface soils (0–0.1 m) than pasture sites as well as greater bulk densities. Clay-rich soils contained the greatest carbon stocks to 0.3 m depth under pasture, with Ferrosols containing a mean of 158 Mg C ha–1, Vertosols 112 Mg C ha–1, and Dermosols 107 Mg C ha–1. Texture-contrast soils with sandier textured topsoils under pasture had a mean of 69 Mg C ha–1. The range of values in soil carbon stocks indicates considerable uncertainty in baseline values for use in soil carbon accounting. Farmers can influence SOC more by their choice of land use than their day-to-day soil management. Although the influence of management is not as great as other inherent site variables, farmers can still select practices for their ability to retain more SOC.
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Hardie, Marcus A., William E. Cotching, Richard B. Doyle, Greg Holz, Shaun Lisson, and Kathrin Mattern. "Effect of antecedent soil moisture on preferential flow in a texture-contrast soil." Journal of Hydrology 398, no. 3-4 (February 2011): 191–201. http://dx.doi.org/10.1016/j.jhydrol.2010.12.008.
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Hardie, Marcus, Richard Doyle, William Cotching, Greg Holz, and Shaun Lisson. "Hydropedology and Preferential Flow in the Tasmanian Texture-Contrast Soils." Vadose Zone Journal 12, no. 4 (October 18, 2013): vzj2013.03.0051. http://dx.doi.org/10.2136/vzj2013.03.0051.
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Zhao, Yue, Zhuopeng Zhang, Honglei Zhu, and Jianhua Ren. "Quantitative Response of Gray-Level Co-Occurrence Matrix Texture Features to the Salinity of Cracked Soda Saline–Alkali Soil." International Journal of Environmental Research and Public Health 19, no. 11 (May 27, 2022): 6556. http://dx.doi.org/10.3390/ijerph19116556.
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Desiccation cracking during water evaporation is a common phenomenon in soda saline–alkali soils and is mainly determined by soil salinity. Therefore, quantitative measurement of the surface cracking status of soda saline–alkali soils is highly significant in different applications. Texture features can help to determine the mechanical properties of soda saline–alkali soils, thus improving the understanding of the mechanism of desiccation cracking in saline–alkali soils. This study aims to provide a new standard describing the surface cracking conditions of soda saline–alkali soil on the basis of gray-level co-occurrence matrix (GLCM) texture analysis and to quantitatively study the responses of GLCM texture features to soil salinity. To achieve this, images of 200 field soil samples with different surface cracks were processed and calculated for GLCMs under different parameters, including directions, gray levels, and step sizes. Subsequently, correlation analysis was then conducted between texture features and electrical conductivity (EC) values. The results indicated that direction had little effect on the GLCM texture features, and that four selected texture features, contrast (CON), angular second moment (ASM), entropy (ENT), and homogeneity (HOM), were the most correlated with EC under a gray level of 2 and step size of 1 pixel. The results also showed that logarithmic models can be used to accurately describe the relationships between EC values and GLCM texture features of soda saline–alkali soils in the Songnen Plain of China, with calibration R2 ranging from 0.88 to 0.92, and RMSE from 2.12 × 10−4 to 9.68 × 10−3, respectively. This study can therefore enhance the understanding of desiccation cracking of salt-affected soil to a certain extent and can also help to improve the detection accuracy of soil salinity.
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Blackwell, PS, TW Green, and KA Olsson. "The size and horizon of origin of fragments produced by deep ripping texture contrast soils." Soil Research 25, no. 2 (1987): 211. http://dx.doi.org/10.1071/sr9870211.
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Two texture contrast soils were cultivated by deep ripping when they were drier than their lower plastic limits. The size distribution and soil horizon-of-origin of the resulting fragments were measured. One soil, a transitional red-brown earth, had either been previously uncultivated below the A horizon or had been deep ploughed and gypsum added two years previously. There was much fragmentation and mixing of soil from both of the horizons. Fine soil (<2 mm diam.) from the A horizon reached the lower depths of the trough made by the ripping and coarse soil from the B horizon (>50 mm) was brought to near the surface. The fragment size distributions were characteristically bimodal. Fragments of the fine mode (<2 mm) came mainly from the A horizon, fragments of the coarse mode (11-25 mm or larger) came mainly from the B horizon. In the laboratory, clods from the deep ripped soil were crushed at the same low water potential (air dry). The crushing energy per unit mass (specific crushing energy) was inversely proportional to the normalized geometric mean diameter of the fragments produced. Suggestions are made for modelling the effects of deep ripping.
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Cruz, D. R., L. F. S. Leandro, D. A. Mayfield, Y. Meng, and G. P. Munkvold. "Effects of Soil Conditions on Root Rot of Soybean Caused by Fusarium graminearum." Phytopathology® 110, no. 10 (October 2020): 1693–703. http://dx.doi.org/10.1094/phyto-02-20-0052-r.
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Fusarium graminearum is an important soybean pathogen that causes seedling disease, root rot, and pre- and postemergence damping-off. However, effects of soil conditions on the disease are not well understood. The objective of this greenhouse study was to determine the impacts of soil texture, pH, and soil moisture on seedling root rot symptoms and detrimental effects on seedling development caused by F. graminearum. F. graminearum-infested millet was added (10%, vol/vol) to soil with four different textures (sand, loamy sand, sandy loam, and loam). Soil moisture was maintained at saturation, field capacity or permanent wilting point at soil pH levels of 6 or 8. Seedlings were evaluated 4 weeks after planting for root rot, root length, root and shoot dry weights, leaf area, and F. graminearum colonization (by qPCR). There was a significant interaction between soil moisture and soil texture for root rot assessed visually (P < 0.0001). Highest severity (67%) and amount of F. graminearum DNA were observed at pH 6 and permanent wilting point in sandy loam soils. Pot saturation resulted in the lowest levels of disease in sandy loam and loam soils (11.6 and 10.8%, respectively). Reductions in seedling growth parameters, including root length, foliar area, shoot and root dry weights, and root tips, relative to the noninfested control, were significantly greater in sandy loam soils. In contrast, there were no significant growth reductions in sand. This study showed that levels of root rot increased under moisture-limiting conditions, producing detrimental effects on plant development.
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Chittleborough, DJ. "Formation and pedology of duplex soils." Australian Journal of Experimental Agriculture 32, no. 7 (1992): 815. http://dx.doi.org/10.1071/ea9920815.
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The term 'duplex' was first used by Northcote (1960) in his classification 'A Factual Key for the Recognition of Australian Soils' to describe soils which have an abrupt textural contrast between the surface soil horizons and the subsurface. Chemical, mineralogical and physical properties other than the textural contrast are not diagnostic. It is not surprising therefore, that duplex soils exhibit great diversity in their properties, particularly their genesis and mode of development. Many theories-chemical, physical, biological-have been proposed to explain the origin of duplex soils and the processes responsible for the development of their dominant morphological characteristic, the texture contrast. These theories, and some of the implications for an understanding of soil development, are reviewed.
Dissertations / Theses on the topic "Texture contrast soil"
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Jassogne, Laurence. "Characterisation of porosity and root growth in a sodic texture-contrast soil." University of Western Australia. School of Plant Biology, 2009. http://theses.library.uwa.edu.au/adt-WU2009.0092.
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In Australia a class of soils known as sodic duplex soils covers approximately 20% of the continent. Their defining characteristic is a sharp texture contrast between the A (or E) and B horizon. The upper B horizon at the point of contact with the E horizon is often highly sodic and of such a high strength that root growth and proliferation, water conductivity, aeration, water storage and water uptake are restricted. Roots growing in these soils rely on channels created by previous roots or cracks arising from shrink swell forces associated with seasonal wetting and drying. It has been suggested that by increasing the number of these channels in the subsoil, the structure and permeability of the subsoil would be increased as would be the number of preferential pathways for following generation roots. A biological approach for improving soil macroporosity would be to use plants that can grow through that hostile layer creating new channels. This is known as the primer plant concept. This concept is based on a better understanding of root soil interactions. It is accepted that root growth is influenced by the soil structure and the soil structure is influenced by root growth. However, a lot of these dynamics are still unknown. This project aims to contribute to improving that knowledge by investigating the use of modern techniques to study plant/root interactions in duplex soils. First macroporosity and mesoporosity were characterized in three dimensions using medical computer tomography and micro-tomography. Then the imaging methodology was improved by using a local and adaptive threshold technique based on indicator kriging instead of a global threshold. Using this new methodology, changes in porosity were analysed in intact samples when three different plant species were grown for 12 weeks. The plants were canola (Brassica napus); lucerne (Medicago sativum) and saltbush (Atriplex nummularia) hypothesizing saltbush would change the porosity more because it is a native plant species based on the primer plant concept. The results showed that the porosity changed significantly after root growth but no ii differences were found between plant species. The changes could also not all be attributed to root growth because cracks were also formed after 12 weeks. Therefore, the living roots were visualized and characterized using a new tracing algorithm 'rootviz'. This revealed that saltbush was growing more roots down through the profile. Lucerne seemed to grow roots down the profile as well but to a lesser extend. Both of these plants seemed to have more geotropic features than canola that seemed to grow more laterals and had a more exploratory behaviour.
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Semetsa, Stanley Rabashi. "Characterisation of the least limiting water range of a texture-contrast soil /." Title page, Contents and Abstract only, 2000. http://web4.library.adelaide.edu.au/theses/09ASOM/09asoms471.pdf.
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Handayanto, Eko. "Texture contrast in some soils from Southern Australia in relation to their parent materials." Adelaide, 1988. http://web4.library.adelaide.edu.au/theses/09A/09ah236.pdf.
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Hardie, MA. "Effect of antecedent soil moisture on infiltration and preferential flow in texture contrast soils." Thesis, 2011. https://eprints.utas.edu.au/13007/2/Hardie_whole.pdf.
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Preferential flow has been shown to be both common and widespread in agricultural soils, however the processes and mechanisms responsible for preferential flow in texture contrast soils have not previously been investigated. Through a combination of dye tracer experiments, soil morphology, in situ soil m oisture monitoring, infiltration studies, and soil water modelling, the effect of antecedent soil moisture on the occurrence, type and depth of preferential flow was investigated in a series of texture contrast soil profiles. Preferential flow was dominated by hydrophobicity induced finger flow in the A1 horizon and bypass flow through shrinkage cracks in the subsoil. Differences between sites in horizon thickness, chemical properties, presence / absence of an A2 horizon, and abundance of sand infills resulted in little variation in preferential flow. At low antecedent soil moisture, dye tracer infiltrated to 85 - 119 cm depth, infiltration bypassed up to 99 % of the soil matrix, and wetting front velocities were estimated up to 12 000 mm hr-1. Perched water tables and subsurface lateral flow did not develop due to the abundance of subsoil shrinkage cracks. At high antecedent soil moisture dye tracer infiltrated to 24 – 40 cm depth. While water repellence had been overcome or leached from the A1 horizon, infiltration of new water was impeded by difficulty displacing existing soil water further down the soil profile. This resulted in wetting front instability and lateral flow through the A1 horizon rather than within the A2 horizon or along the upper surface of the B horizon as reported in the literature. Occurrence of preferential flow was not related to rainfall intensity or rainfall magnitude. Rather, preferential flow was significantly more likely to occur when antecedent soil moisture was below approximately 50 - 60 % PAWC. Water repellence had a profound effect on the development of preferential flow, however the relationship between water repellence and antecedent soil moisture was not straightforward. Potential water repellence varied seasonally in relation to rainfall history in which water repellence was not re-established after rainfall unless input of new hydrophobic substances occurred. Ability to model and predict the frequency and magnitude of preferential flow was limited by poor model performance, attributed to parameter uncertainty and inability to simulate water repellence and lateral flow. Results indicate that in agricultural landscapes which contain texture contrast soils, shallow groundwater and waterways may be at risk of contamination by preferential transport of agrochemicals at low antecedent soil moisture.
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Ives, SW. "Soil and plant growth benefits resulting from applying biosolids, poppy mulch and poppy seed waste as soil amendments to texture contrast soils in Tasmania." Thesis, 2012. https://eprints.utas.edu.au/14688/2/whole-ives-thesis.pdf.
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Organic materials are used as soil amendments in productive agriculture to increase or replace soil organic matter and provide essential plant nutrients. Two field trials were undertaken in Tasmania (a temperate region located between latitudes 40° and 44° south and between longitudes 143° and 149° east) over two years to quantify changes to biological, chemical and physical properties of soil and to determine crop responses from applying locally available organic materials to a texture contrast soil. Lime amended biosolids (LAB) and anaerobically digested biosolids (ADB) were applied at both sites with application rates calculated from local EPA guidelines. Lime and fertiliser (L+F) was applied at both sites, with application rates based on nitrogen requirement of the crop. Poppy mulch (PM) and poppy seed waste (PSW) were applied at one site only, with application rates based on industry recommendations.
Results showed that the application of bio-resources can produce equivalent cereal crop yields to inorganic fertiliser, for two successive seasons following application. LAB applied at 1NLBAR (for cereals) and PM applied at 17.5 wet t/ha increased soil pH by 0.9 and 0.6 units respectively within 9 months of application. Without further application of P, a season of growing cereals did not reduce soil Colwell P from pre-trial levels for the LAB treatment. However, an increase in Colwell P after the second year is of major concern for potential leaching and surface run-off of mobile P. A partial nitrogen balance after the first year showed that actual mineralised N from LAB was > 30% higher than calculated mineral N from EPA guidelines, whilst mineralised N from ADB was 19% lower than calculated mineral N from EPA guidelines. Furthermore, contrary to previous research, an inverse relationship was found between increasing rates of LAB and mineralised N according to partial N balances after the first season.
A further field trial and an incubation experiment were conducted to study nitrogen mineralisation kinetics of the different bio- resources. Results confirmed that current EPA guideline assumptions for application of ADB and LAB do not adequately reflect actual release of mineral nitrogen from either product. They also showed that eight weeks after application, PAN as a percentage of total N applied in PSW was 6 times higher than PAN from ADB, even though the application rate for ADB was 6 times higher than PSW and total N of the initial products were 4.1% and 4.2% respectively. After 56 days incubation at 12.5° C (temperature of autumn/winter period when bioresources are applied to soil) and constant soil moisture, PAN from total N applied in ADB, PSW and LAB was 35%, 49% and 62% respectively. The PM treatment showed a drawdown of PAN over the same period, suggesting that applying this product requires additional nitrogen to satisfy plant demand.
A modelling component was included in the research program using APSIM (Agricultural Production Systems Simulator) with data from the field trials to interpret and improve understanding of the results obtained. The model simulation of mineral nitrogen accumulation in the soil following application of LAB was in good agreement with the measured data. However, measured mineral nitrogen for ADB and the higher application rates of LAB were not in agreement with the simulated model. This result together with partial nitrogen balances performed as part of this research suggests that the nitrogen equations used in the model may require additional information such as a constant that allows for the (non) uniformity of the soil to product contact when incorporated. This constant may then be used in general application guideline calculations to better reflect nitrogen release from bio-resources after application to soil.
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Pitman, Ashleigh. "The influence of drains and perennial pastures on soil-water-nutrient dynamics of texture contrast soils down a toposequence at Keyneton, South Australia/ Ashleigh Pitman." 2005. http://hdl.handle.net/2440/22263.
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"May 2005"Bibliography: leaves 202-220.
viii, 220 leaves : ill. (some col.), maps (chiefly col.), plates, photographs (chiefly col.) ; 30 cm.
Title page, contents and abstract only. The complete thesis in print form is available from the University Library.
Thesis (Ph.D.)--University of Adelaide, School of Agriculture and Wine, Dept. of Agronomy and Farming Systems, 2005
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Pitman, Ashleigh. "The influence of drains and perennial pastures on soil-water-nutrient dynamics of texture contrast soils down a toposequence at Keyneton, South Australia/ Ashleigh Pitman." Thesis, 2005. http://hdl.handle.net/2440/22263.
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"May 2005"Bibliography: leaves 202-220.
viii, 220 leaves : ill. (some col.), maps (chiefly col.), plates, photographs (chiefly col.) ; 30 cm.
Thesis (Ph.D.)--University of Adelaide, School of Agriculture and Wine, Dept. of Agronomy and Farming Systems, 2005
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Bald, M. "Development of textural differentiation in soils: a quantitative analysis." Thesis, 2012. http://hdl.handle.net/2440/91783.
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This item is only available electronically.A soil profile exhibiting strong textural differentiation between surface and subsurface horizons at Keyneton, South Australia, was sampled for quantitative and qualitative analyses of the processes responsible for development. From constant resistant mineral ratios throughout the profile it was concluded that the soil had formed from uniform parent material, suggesting that pedological processes had heavily influenced formation. Particle size distribution, clay mineralogy determined by XRD, and microstructural features indicated that clay accumulation in the subsurface was accompanied by a greater intensity of weathering in the surface horizons. The presence of void argillans in the B horizon provided strong evidence for the translocation of clay. Mass balance calculations showed significant volumetric expansion and mass gain throughout the entire profile, but greatest in the B horizons. Al, Fe, Na and Si were all gained in large quantities. The results indicate that clay translocation by illuviation is a dominant process in the development of textural differentiation, with some clay likely to have formed in situ.
Thesis (B.Sc.(Hons)) -- University of Adelaide, School of Physical cinches, 2012
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Matuszek, MR. "The effect of irrigation on barley root architecture, yield and water-use efficiency in vertic texture contrast soils." Thesis, 2017. https://eprints.utas.edu.au/23880/1/Matuszek_whole_thesis.pdf.
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Water availability is an ever increasing issue for agricultural production around Australia. Australia‘s south-eastern high-rainfall zones (annual rainfall between 500 and 900 mm) allow for extensive cropping. In Tasmania, this often requires supplemental irrigation to maximise yields. Texture contrast soils occupy 80% of southern Australian agricultural regions and can be difficult to irrigate due to hydraulic complexities, particularly with a vertic, clay subsoil.
This thesis assesses how strategic irrigation can be used to overcome the complexities of texture contrast soils to improve grain yield and water-use efficiency (WUE) of barley through maximising root depth and distribution. Detailed root spatial data and growth rates were used to present a method to improve the simulation of barley growth and development on texture-contrast soils in the high rainfall zone.
Barley (cv. Gairdner) was grown under waterlogged, optimal irrigation and rainfed conditions with five replicates on a texture contrast soil in southern Tasmania. Plants were sampled three times through the season for yield and yield components. Following harvest, 1 m\(^2\) pits were excavated and root number, soil moisture and soil strength were measured on horizontal soil faces to a depth of 110 cm. Volumetric soil moisture was recorded in each treatment throughout the growing season with a Sentek EnviroSCAN to a depth of 110 cm. Soil, plant and weather data were collated to parameterise the crop simulation model APSIM for the calculation of WUE.
Increased root depth significantly improved grain yield and WUE. Maximum rooting depth was greatest under optimal irrigation and shallowest under rainfed conditions. Increased root depth was associated with improved grain yield. Grain yield was greatest under optimal irrigation, followed by the waterlogging and rainfed conditions, respectively. Optimal irrigation had the greatest WUE. Even though the rainfed conditions lead to the poorest yield, WUE was greater than the crop subjected to waterlogged conditions.
Increasing the frequency and amount of irrigation led to waterlogging of the A horizon, which is a potential issue in texture contrast soils. The abrupt change in texture means there is a large contrast in the permeability of the two soil horizons. The low permeability of the B horizon and the low water holding capacity of the A horizon makes the soils very prone to waterlogging, particularly under irrigation. Although the soil in the waterlogged treatment had a lower penetration resistance, root depth was shallower than for the optimum treatment.
The default capacity of APSIM to simulate barley grown on Tasmanian vertic texture contrast soils was relatively poor and parameters such as yield and root growth were overestimated. This was addressed by revising the root exploration factor and root water extraction parameters of APSIM, based on detailed root density curves.
Strategic irrigation of barley improved grain yield, rooting depth and distribution in vertic, texture contrast soils. A better understanding of root-soil interactions can be used to develop more effective irrigation to increase yields and water-use efficiency of grain crops in these hydraulically complex soils.
Book chapters on the topic "Texture contrast soil"
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Cammeraat, L. H., T. M. W. van den Broek, and J. M. Verstraten. "Steinmergelkeuper Forest Soils in Luxembourg: Properties and Pedogenesis of Soils with an Abrupt Textural Contrast." In The Luxembourg Gutland Landscape, 177–229. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-65543-7_9.
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Haw, Richard. "Private Life, Public Works (1844–45)." In Engineering America, 191–218. Oxford University Press, 2020. http://dx.doi.org/10.1093/oso/9780190663902.003.0011.
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Right as John was trying to establish his new business, Pittsburgh found itself in need of a new aqueduct to carry the Pennsylvania Canal over the Allegheny River. John got to work immediately: designing, promoting, corralling, and influencing. While waiting to hear about the bridge contract, John wrote a long, revealing letter home to his father, in which he pondered the nature of life and death, along with issues of matter and the soul. John’s philosophyowed much to Hegel’s Weltgeist (“world spirit”) and Ralph Waldo Emerson’s ideas on nature and the soul. John was certainly a man of strict science, but he was also a bit of a spiritual mystic, inclined to the hard lines of the Enlightenment as well as the soft textures of Romanticism. The work on the Allegheny Aqueduct was extremely difficult and the effort was massive, but all was proceeding well until a fire broke out on the other side of town.
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Khaldi, Malek. "L’étude diachronique de « à » et « de » après les verbes d’affection et leurs équivalents en arabe." In Lexique(s) et genre(s) textuel(s) : approches sur corpus, 51–64. Editions des archives contemporaines, 2020. http://dx.doi.org/10.17184/eac.2909.
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Les verbes d’affection aimer, adorer, désirer, préférer sont suivis soit directement d’un infinitif soit indirectement par le biais d’une préposition. Cet emploi contrastif nous a suggéré une étude diachronique visant à montrer la coexistence ou non de ces différentes structures. Pour ce faire, nous avons usé d’un logiciel de traitement de corpus ANTCONC afin de distinguer les emplois fréquents des emplois tombés en désuétude. L’emploi alternant de « à » et « de » après certains verbes se trouve expliqué par des mouvements ou courants de mode ou par des servitudes grammaticales. Une telle explication s’avère, pour un linguiste psychomécanicien, insuffisante et dépourvue de rigueur explicative. C’est pour cette raison que nous avons recours à la psychomécanique du langage qui attribue à chaque particule un sens puissanciel et un autre effectif, les deux étant susceptibles d’expliquer leur usage alternant. En outre, la traduction de la suite « aimer + à / de + infinitif » en arabe tout en gardant les mêmes nuances de sens s’avère impossible. C’est pourquoi nous aspirons, dans un travail ultérieur, à traduire ces tournures par la plateforme NooJ pour prendre en considération ces remarques.
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Manning, Jane. "PETER CHILD (b. 1953)Emily Dickinson Songs (1998)." In Vocal Repertoire for the Twenty-First Century, Volume 1, 61–63. Oxford University Press, 2020. http://dx.doi.org/10.1093/oso/9780199391028.003.0018.
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This chapter describes seven miniatures created by Peter Child. These songs are written in an accessibly ‘neo-tonal’ idiom. Here, lean, nimble, relatively undemanding vocal lines are supported, and often driven, by highly characterful piano parts which convey much of the detail of the textual images. The piece forms a nicely balanced whole, its hypnotic slow movements contrasted by more animated rhythmical settings. The first four songs muse, fleetingly, on various features of the natural world (both animate and inanimate), but the last two plumb more deeply beneath the surface. The final setting is particularly affecting in its ambivalent soul-searching. The composer has a distinctive way of concluding each song with a pithy musical comment, sometimes leaving a question hovering in the air.