Australian Journal of Soil Research articles from December 2003

Australian Journal of Soil Research archives from December 2003

The use of remote sensing data to extract information from agricultural land with emphasis on soil salinity.
December 1, 2003... Introduction The Rio Grande Valley on the United States-Mexico border is exceptionally vulnerable to agricultural production losses due to accumulation of salts. Contribution of salts from the agricultural return flow and capillary rise...

The hydrology of Vertosols used for cotton production: I. Hydraulic, structural and fundamental soil properties.
December 1, 2003... Introduction Water-use efficiency of cotton production and minimising the impact of the cotton industry on the environment have emerged as issues of great importance in recent times. Resolution of these issues is strongly reliant on a...

Deep banding improves residual effectiveness of manganese fertiliser for bauxite residue revegetation.
December 1, 2003... Introduction Placement of fertilisers deep in soil profiles can improve plant growth and uptake of mineral nutrients. This is considered to be due to the higher moisture content at depth allowing dissolution of nutrients from the...

Subsurface drip irrigation in raised bed tomato production. I. Nitrogen and phosphate losses under current commercial practice.
December 1, 2003... Introduction Subsurface irrigation combined with fertigation has the potential to supply water and fertiliser to crops with higher precision and speed than traditional methods such as surface, furrow, and sprinkler irrigation. The...

Subsurface drip irrigation in raised bed tomato production. II. Soil acidification under current commercial practice.
December 1, 2003... Introduction Subsurface drip irrigation (SDI) has the capacity to supply water and fertiliser to crops with higher precision and speed than sprinkler and furrow irrigation systems. The commercial availability of reliable SDI systems (Camp...

The changes in soil organic matter in a forest-cultivation sequence traced by stable carbon isotopes.
December 1, 2003... Introduction The changes of soil organic matter (SOM) in sequential ecosystems, where crops are planted at the cost of forest destruction, have close relations with sustainable crop growth and global carbon cycle (Syers and Craswell 1995;...

Heavy metals in road dust, gully pots and parkland soils in a highly urbanised sub-catchment of Port Jackson, Australia.
December 1, 2003... Introduction Road surfaces contribute significant contaminant loads to runoff in an urban environment (Xanthopoulos and Hahn 1990), and the primary pollutants of concern in such runoff are heavy metals (Pb, Zn, Cu, Cd) (David and Williams...

Alteration of groundwater and sediment geochemistry in a sulfidic backswamp due to Melaleuca quinquenervia encroachment.
December 1, 2003... Introduction Sulfidic sediments and acid sulfate soils (ASS) underlie substantial areas of backswamp on the coastal floodplains of eastern Australia (White et al. 1997). Many of these backswamp landscapes have been artificially drained...

Phosphorus sorption by sandy soils from Western Australia: effect of previously sorbed P on P buffer capacity and single-point P sorption indices.
December 1, 2003... Introduction There were 2 reasons for doing this research. First, for low phosphorus (P) sorbing sandy soils commonly used for agriculture in south-western Australia, we wished to test whether the P buffer capacity of soil (PBC) decreased...

Fractionation of trace elements in some non-agricultural Australian soils.
December 1, 2003... Introduction Knowledge of the forms of silver in soils is of importance to both mineral exploration and environmental management. We have investigated silver adsorption-desorption behaviour with pure, single soil constituents, which...

Soil sampling strategies for spatial prediction by correlation with auxiliary maps.
December 15, 2003... Introduction A sampling design in soil survey specifies which points, transects, or areas will be visited for field measurements or observations. Sampling incorporates concepts of survey intensity, spatial variability, and mapping scale,...

Potassium-calcium exchange in electropositive oxisols: description of exchange sites.
December 15, 2003... Introduction Adsorption processes play a central role in the dynamics of ions in soils. Both the availability of plant nutrients and leaching of ions through the soil profile are highly dependent on ionic retention phenomena. Thus, the...

Using radiometric data to identify aeolian dust additions to topsoil of the Hillston district, western NSW.(New South Wales)
December 15, 2003... Introduction Although Australia lacks the thick loess mantles that are found on most other continents, Butler's (1956) parna model of dust deposition and related features in southern New South Wales (NSW) and northern Victoria has achieved...

Predicting unsaturated hydraulic conductivity functions of three Indian soils from particle size distribution data.
December 15, 2003... Introduction A large number of predictive approaches have been developed to estimate the hydraulic conductivity of unsaturated soils from easily measurable soil properties (Schuh and Bauder 1986; Vereecken et al. 1990; Vereecken 1995)....

Cover-runoff equations to improve simulation of runoff in pasture growth models.
December 15, 2003... Introduction Sustainability of production from grazing lands of northern Australia is a major concern for graziers and resource managers (Tothill and Gillies 1992). Increased runoff and soil loss resulting from low surface cover has been...

Improved slope adjustment functions for soil erosion prediction.
December 15, 2003... Introduction Slope affects soil erosion rates in several different ways. As slope gradient increases, the impact angle of raindrops becomes more acute. As a result of gravity, a greater proportion of the mass and the momentum of the soil,...

Effect of polyacrylamide additions on infiltration and erosion of disturbed lands.
December 15, 2003... Introduction A wide range of agricultural, forestry, mining, housing, and infrastructure construction activities involve the removal of vegetation and disturbance of the soil surface. These changes can cause accelerated erosion and lead to...

Cattle treading and phosphorus and sediment loss in overland flow from grazed cropland.
December 15, 2003... Introduction The loss of phosphorus (P) and sediment from land to surface waters via overland flow is associated with impaired water quality (Nash and Halliwell 1999). Factors that are likely to accelerate the movement of P or sediment are...

Effect of centrifuge conditions on water and total dissolved phosphorus extraction from soil.
December 15, 2003... Introduction Plants acquire their mineral nutrients from the water contained in the interstitial spaces within the soil known as soil water (Adams et al. 1980). This water provides a pathway through which pollutants can be exported via...

Influence of diazotrophic inoculations on nitrogen nutrition of rice.
December 15, 2003... Introduction Biological fixation of atmospheric nitrogen by heterotrophic microorganisms plays a vital role in nitrogen economy in rice soils (Watanabe 1986). Besides blue green algae (Kaushik and Prasanna 1989; Ghosh and Saha 1996), a...