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Showing 1 to 20 of 202 for “"Soil types"”.
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The algae of Two Soil Types
… and describe the algal flora of two different soil types; a sandy soil, Plot I, and an alkali soil, Plot II.
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Relationship of Tecate Cypress Distribution to Soil Types
… tree of limited distribution. To determine if soil is an influencing factor in its distribution, the soil characteristics of a Tecate Cypress grove in the Santa Ana Mountains of Orange County, California, were compared with soils from neighboring communities and other Tecate Cypress groves. …
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A Correlation of Pedologic Soil Types With Rigid Pavement Performance in Dewitt County, Illinois
Made available in DSpace on 2014-12-05T17:36:54Z (GMT). No. of bitstreams: 1 0018123.pdf: 31034076 bytes, checksum: 25867fd46e1050ba67e27cb480b66231 (MD5) Previous issue date: 1956
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A biogeochemical analysis of Miscanthus x giganteus under nitrogen fertilizer treatments and across multiple soil types
… N fertilizer on M. x giganteus across a range of soil types and climatic factors. The objective of this study was to determine the effect of three different fertilizer treatments (0, 60, and 120 kg N ha-1 yr-1 annually as urea in spring) on biomass production, soil organic matter (SOM), and …
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Effects of different rates of liming on crop yields and soil reactions on different soil types
… applying lime for different crops on different soil types in the State, and to determine if possible the hydrogen ion concentration for the most economic yields of the different crops on different soil types. Plots will be laid out at Blacksburg, Staunton, Williamsburg, Holland, and …
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Spatial variability of hydraulic properties as affected by physical properties of selected soil types in South Africa
Soil hydraulic and hydraulic-related physical properties are key to soil productivity and these properties are widely studied. Nevertheless, their spatial variability is least understood. Two sites were selected for this study (University of Venda Experimental farm and Roodeplaat, Agricultural …
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From soil to groundwater: Assessing the leaching potential of cadmium across gradients of soil types and land-uses
… on millions tons of fertiliser to maintain soil fertility. These fertilisers contain contaminants, including cadmium (Cd) which pose risks to the environment and human health. The assessment of the bioavailability, mobility, and fate of fertiliser-derived contaminants is therefore important …
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Comparative Analysis of Two Successive Vintages of Cabernet Sauvignon Must and Pre-barrel Wine from Two Distinct Soil Types
… analyzed from two vintages from two distinct soil types.</p> <p>Research was conducted at California Polytechnic University, San Luis Obispo to examine the quantitative chemical analysis of 22 different response variables of Cabernet Sauvignon grapes. The same 22 variables were analyzed in …
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The Effect of Split Nitrogen Fertilization on Yield, Quality, and Nitrogen Use Efficiency of Spring Barley Grown on Two Different Soil Types in Iceland
… at two locations in Iceland, using two different soil types and two spring barley varieties, Smyrill (six-row) and Kría (two-row), to study the effects of different N split applications on growth, grain yield, grain protein content (GPC), and NUE. Treatments included single fertilization at …
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Chickpea nitrogen fixation, rhizosphere nutrient concentration and contribution of residual nitrogen to improve maize production in response to biochar application in three different soil types
Soil degradation is a major challenge affecting agricultural production around the world in the twenty-first century. Alternative approaches including the use of biochar and the introduction of legumes that will fix nitrogen though the process of biological nitrogen fixation (BNF) are essential for …
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A study of the effect of intensive cropping and the use of pure chemicals on the need for so-called "minor elements" on certain soil types and the effect of natural Chilean nitrate of soda in eliminating this need
… for these elements in crop production on field soils has not been studied intensively, nor have we sufficient knowledge as to the effect of our changing fertilizer practices on the necessity for minor elements. A number of field studies to determine the necessity of boron, manganese, zinc, …
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A computer-assisted method for deriving soil maps of Virginia counties
… information system to map the probable soils of a county in southwestern Virginia having no soil map. To facilitate the association of known soil characteristics and interpretations with derived soil units, the procedures were based on a soil map available for a similar, mapped county in …
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Trace Metal Concentrations across Trophic Levels in Cotton Fields of Xinjiang Province, China
… become concentrated in urban and peri-urban soils with the use of agricultural practices and industrial emissions. Fertilizers, liming, sewage sludge, and irrigation water contain metals which accumulate in agricultural fields and pose a risk to humans and wildlife. Coal plants and brickyards …
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Expansive and collapsing behaviour of volume change soils
… goals: Goal One - to introduce the reader to soils exhibiting expansive and/or collapsing behaviour; Goal Two - to provide an in depth understanding of aspects of this behaviour, obtained from an extensive study of these soil types; and, Goal Three - to serve as a reference for future research …
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On-site effects of accelerated erosion on direct-physical soil quality indicators
Accelerated soil erosion is a serious agricultural problem in South Africa limiting soil productivity and little it’s known about its effect on soil quality. This study aimed to provide a less laborious, less time consuming and inexpensive protocol of estimating the effects of accelerated erosion …
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