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Now showing items 11-20 of 37
Improved models of particle-size distribution: an illustration of model comparison techniques
(Soil Science Society of America, 1993)
We investigated a relatively unexplored area of soil science: the fitting of parameterized models to particle-size distribution (a subject more thoroughly explored in sedimentology). Comparative fitting of different models ...
Tillage and water content effects on surface soil hydraulic properties and shortwave albedo
(Soil Science Society of America, 1993)
The modification of surface soil structure affects soil-water processes important in crop production and soil conservation. Effects of pretillage soil water content (PTSW) with multiple-pass tillage operations were determined ...
Lime and soil moisture effects on nitrous oxide emissions from a urine patch
(Soil Science Society of America, 2004)
Liming has been mooted as a mitigation option for lowering soil N₂O emissions. This study investigated the effect of soil pH and soil water content on N₂O and N₂ emissions following the addition of synthetic urine (500 kg ...
Application of capillary electrophoresis to anion speciation in soil water extracts: II. Arsenic
(Soil Science Society of America, 2000)
A method has been developed for the speciation of arsenic (AsO₂⁻, AsO₄³⁻, and dimethylarsinic [DMA]) in natural soil solutions from contaminated sites in Australia. The separation of these anions was achieved by capillary ...
Desorption of copper from some New Zealand soils
(Soil Science Society of America, 1993)
Availability of soil Cu to plants is dependent on the desorption into the soil solution of Cu from the surfaces of soil colloidal materials. Although there have been many studies of Cu sorption by soils, however, few have ...
Phosphorus exchangeability and leaching losses from two grassland soils
(American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America, 2002)
Although phosphate phosphorus (P) is strongly sorbed in many soils, it may be quickly transported through the soil by preferential flow. Under flood irrigation, preferential flow is especially pronounced and associated ...
Fractionation of arsenic in soil by a continuous-flow sequential extraction method
(American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America, 2001)
Batch sequential extraction techniques for fractionating metals or metalloids in soils are time consuming and subject to several potential errors. The development of a continuous-flow sequential extraction method for soil ...
Fractionation of copper, nickel, and zinc in metal-spiked sewage sludge
(American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America, 2001)
The enrichment or spiking of sewage sludge with heavy metals for experimental purposes is a fairly widely used, although sometimes controversial, technique. A study was undertaken, using a sequential fractionation scheme, ...
Fungal inoculum properties : Extracellular enzyme expression and pentachlorophenol removal by New Zealand Trametes species in contaminated field soils
(American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America, 2007)
This study was conducted to improve the ability of indigenous New Zealand white-rot fungi to remove pentachlorophenol (PCP) from contaminated field soil. The effects of different bioaugmentation conditions on PCP removal ...
Fungal inoculum properties : Extracellular enzyme expression and pentachlorophenol removal in highly contaminated field soils
(American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America, 2007)
This study was conducted to improve the pentachlorophenol (PCP) bioremediation ability of white-rot fungi in highly contaminated field soils by manipulating bioaugmentation variables. These were the dry weight percentage ...