Australian Journal of Soil Research articles from September 2005

Australian Journal of Soil Research archives from September 2005

Effect of watertable depth on evaporation and salt accumulation from saline groundwater.
September 1, 2005... Introduction Evapotranspiration is a convenient, if clumsy, term that has been widely adopted by agrohydrologists and soil scientists to describe total evaporative flux from a land surface, but efforts to improve water productivity must...

The effect of raised beds on soil structure, waterlogging, and productivity on duplex soils in Western Australia.
September 1, 2005... Introduction Duplex soils are present throughout the agricultural areas of Western Australia (WA) (Tennant etal. 1992) and are characterised by a large difference in soil texture and hydraulic properties between the A and B horizons....

Modelling irrigated Eucalyptus for salinity control on shallow watertables.(Murray Basin, Australia)
September 1, 2005... Introduction There are extensive areas of shallow watertables in the Riverine Plains of the Murray Basin where irrigation is the main cause of rising watertables due to high recharge to the groundwater. It is estimated that by the year...

Comparison of the Instantaneous Profile Method and inverse modelling for the prediction of effective soil hydraulic properties.
September 1, 2005... Introduction Investigations into water movement in soils require knowledge of the hydraulic conductivity function K([theta]) or K(h) and the soil water retention [theta](h) function, where [theta] is the volumetric soil water content and h...

Laboratory calibrations of water content reflectometers and their in-situ verification.
September 1, 2005... Introduction Time domain reflectometry (TDR) has become the most widely accepted electronic technique for measuring volumetric water content (VWC). TDR has been shown to be a reliable method to make continuous, nondestructive measurements...

Soil puddling for rice production under glasshouse conditions--its quantification and effect on soil physical properties.
September 1, 2005... Introduction Management of clay soil in rice-based cropping rotation must deal with opposing soil physical requirements for the rice crop and the subsequent dry season crop. Rice (Oryza sativa) needs impermeable or puddled soil to maintain...

Rice growth and post-rice mungbean in relation to two puddling intensities under glasshouse conditions.
September 1, 2005... Introduction The total global area of rainfed lowland rice (Oryza sativa) was 40.5 million ha in 1992 (IRRI 1993), which is 18% of the global rice supply. Most of these areas are located in Asia: 36% in south Asia, 43% in south-east Asia,...

Classification issues for the Hydrosol and Organosol Soil Orders to better encompass surface acidity and deep sulfidic horizons in acid sulfate soils.
September 1, 2005... Introduction Acid sulfate soils (ASS) are dominated by sulfidic or sulfuric materials which, under varying redox conditions, exist either as stable sulfides (primarily pyrite) or as soluble sulfate with associated high acidity. The...

Evaluation of different extractants for the estimation of bioavailable selenium in seleniferous soils of Northwest India.
September 1, 2005... Introduction Selenium is an important trace element found in most soils. Consumption of any vegetation species containing >5 mg Se/kg, the maximum permissible level, results in health hazards to animals and humans (Anderson et al. 1961;...

Increased risk of zinc deficiency in wheat on soils limed to correct soil acidity.
September 1, 2005... Introduction When newly cleared, ~45% of the 18 million ha of land used for agriculture in south-western Australia (SWWA) was deficient in zinc (Zn) for grain production of spring wheat (Triticum aestivum L.), the major crop in the region....

In situ dynamics of recently allocated [sup.14]C in pasture soil and soil solution collected with Rhizon Soil Moisture Samplers.
September 1, 2005... Introduction In countries such as Australia and New Zealand, permanent legume-based pastures and short-term legume-based pastures are well known for their ability to maintain or increase organic matter in topsoil (Bhupinderpal-Singh et al....

Role of root inputs from a dinitrogen-fixing tree in soil carbon and nitrogen sequestration in a tropical agroforestry system.
September 1, 2005... Introduction Agroforestry has been defined as 'an integrated land-use that, through the capture of intra-specific diversity and the diversification of species on farm, combines increases in productivity and income generation with...