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Showing 1 to 20 of 82 for “"soil moisture content"”.
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The Categorization of Soil Moisture Content in the Near Infrared Spectrum
… instrument potentially capable of measuring soil moisture from space was designed, tested and developed. The atmospheric spectral information and target detection range for infrared spectroscopy was analyzed. In order to measure soil moisture using grating spectroscopy, a trade study of the …
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Determination of soil moisture content and density using electrical resistivity values
Ciri geoteknik merupakan elemen penting dalam kerja-kerja rekabentuk dan pembinaan kejuruteraan awam. Pada masa lalu, ciri geoteknik diperolehi menggunakan teknik penyiasatan tapak konvensional melalui penggerudian dan pengorekan. Kaedah tersebut mempunyai beberapa batasan dari segi kos, masa dan …
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The relation of soil moisture content to the resistance of wheat seedlings to low temperatures
Made available in DSpace on 2017-11-30T22:11:11Z (GMT). No. of bitstreams: 2 5081581.pdf: 6707028 bytes, checksum: 11cd5dd8d18526b59227a2b031a85689 (MD5) license.txt: 4813 bytes, checksum: 715c4321821a960fa1a1e91d2ac7ebce (MD5) Previous issue date: 1922
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Modeling pre-harvest aflatoxin incidence in groundnut (arachis hypogaea l.) using selected soil properties and ambient temperature
… during crop growth is associated with adverse soil factors and weather conditions. Therefore, good agricultural practices are an important strategy to minimize the pre-harvest aflatoxin contamination risk in groundnut. The main objective of this study was to formulate regression models to …
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Modeling pre-harvest aflatoxin incidence in groundnut (arachis hypogaea l.) using selected soil properties and ambient temperature
… during crop growth is associated with adverse soil factors and weather conditions. Therefore, good agricultural practices are an important strategy to minimize the pre-harvest aflatoxin contamination risk in groundnut. The main objective of this study was to formulate regression models to …
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Environmental determinants of greater flamingo foraging behaviour in an estuarine intertidal sandflat
… shore positions, and by examining the effects of soil moisture content and sediment profile as environmental cues driving flamingo foraging behaviour. Pit abundance was obtained as a total count per quadrat, and pit size was measured from photographs taken in the field. Sediment cores provided …
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Challenges in the Greenhouse Production of Rosmarinus officinalis L.
… dried down to less than 30% or 20% volumetric soil moisture content. Root and shoot dry weights showed irrigation rate did not effect roots, but the higher irrigation rate produced larger shoots at all fertilizer concentrations. The largest roots and shoots were a product of the lowest …
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A preliminary study of the impacts of alien Acacia infestation (A saligna) on the relative rates of nitrogen and phosphorus cycling in Lowland Fynbos, southwestern Cape, South Africa
… processes were investigated in the surface soils (1-10cm) of 7-8 year old fynbos vegetation and an adjacent Acacia saligna (Labill.) Wendl. infestation. While there was no significant difference in soil temperature between fynbos and acacia sites, soil moisture and organic matter content was …
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Terrain characterization for site selection and preparation
… land cover/land use classes, and soil moisture content were determined using UAV-mounted sensors to inform base camp site selection and preparation decisions. To determine accurate and real-time elevation/slope values, a stale a priori digital elevation model (DEM) was merged with …
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Evaporative Controls on Convective Adjustment: A Satellite-Based Assessment of Convective Available Energy (CAPE) During Surface Drydowns
… on hydroclimate and can also depend on initial soil moisture content and moist enthalpy conditions. The impact of these factors on CAPE can be explained by their effect on evaporation, demonstrating the importance of evaporative controls on convective adjustment and providing a benchmark for …
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Wastewater treatment in soil: effect of residence time
… model was used as an aid in describing soil water (and wastewater) movement through the root zone under wet conditions (i.e. root zone 50- 75% saturated). A procedure was developed to predict the rate and volume of drainage as a function of initial soil moisture content, amount of liquid …
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Soil texture determination by an acoustic cone penetrometer method
Soil texture is an important soil property, contributing to many aspects of soil performance, ranging from productivity to ease of tillage. Currently, textural analysis is either estimated in the field with limited accuracy, or analyzed in a laboratory setting through a time consuming and labor …
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Hillslope and watershed scale hydrological processes and grazing management in a Dartmoor catchment, Southwest England
… on the impacts of moorland management on the soils and hydrology of a catchment on Dartmoor. Soil moisture was measured gridwise using TDR on 19 occasions. At 23 sites within this grid, physical properties of the topsoil were obtained. At three locations, tensiometer nests were installed, …
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The trend towards sociality in three species of southern African mole-rats (Bathyergidae) : causes and consequences
… properties and its availability. Thus the soil moisture content, the annual rainfall pattern and the wear upon the extrabuccal incisors limit the amount of burrowing which can be undertaken by a single mole-rat, both on a daily and seasonal basis. These factors together with the size, …
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Ground water-surface water interaction of Rio Grande Biopark area, Albuquerque, New Mexico
… surface water on ground water levels as well as soil moisture content in a small region of Albuquerque Biopark near the Rio Grande. This study involved collection of field data on soil moisture, ground water levels and observations of vegetation densities adjacent to the Biopark wetlands. …
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Effect of Temperature, Moisture, and Soil Texture on Dimethyl 2,3,5,6 Tetrachloroterephthalic Acid Degradation (Crabgrass)
The effect of soil temperature (ST), soil moisture (SM) and soil texture (STX) on DCPA (Dimethyl 2,3,5,6 tetrachloroterephthalic Acid) degradation was measured in the laboratory. Treatments consisted of six soil temperatures with a combination of three soil moisture levels. Soil temperature …
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Optimizing non-flooded landscape units to support maize production in the Zambezi region, Namibia
… of these non-flooded landscape units in terms of soil and climatic factors as well as their land suitability for maize production in space and time given the prevailing climatic conditions has not been investigated. At the same time our understanding of how small-scale farmers in the region …
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Distributed soil displacement and pressure associated with surface loading
Soil compaction is an inevitable result of agricultural practices. It alters physical properties of soil and tends to be undesirable as it adversely affects water and nutrient penetration. Furthermore, additional energy is spent to till the soil. Although a tremendous amount of research has been …
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