Australian Journal of Soil Research articles from May 2000

Australian Journal of Soil Research archives from May 2000

Hydrology of swelling soils: a review(*).
May 1, 2000... Introduction Competition for water is becoming intense and divisive, and resolution of management and allocation issues will become among the most important natural resource problems facing Australia. Water use efficiency is a critical...

Water retention characteristics of soils with contrasting clay mineral composition in semi-arid tropical regions.(Statistical Data Included)
May 1, 2000... Introduction In semi-arid regions, water retention of the soil is a critical factor which determines crop growth and yield security. Erratic rainfall patterns pose high risks to crop development and yield, and the capacity of the soil to...

A validation test of WEPP to predict runoff and soil loss from a pineapple farm on a sandy soil in subtropical Queensland, Australia.(Statistical Data Included)
May 1, 2000... Introduction There are some 6000 ha of pineapple farmland along the Australian eastern seaboard, mostly in south-east and central Queensland (E. Sinclair, Golden Circle, pers. comm.). Pineapple is grown on coastal lowlands as well as on...

Geologically related variations in saturated hydraulic conductivity in the regolith of the western wheatbelt of Western Australia and its implications for the development of dryland salinity.(Statistical Data Included)
May 1, 2000... Introduction Dryland salinity is a significant threat to sustainable agricultural production in southern Australia. Ferdowsian et al. (1996) estimated that in 1994, 9.4% of the cleared area in the south-west of Western Australia was...

Evaluation of surface and groundwater management strategies for drained sulfidic soil using numerical simulation models.(Statistical Data Included)
May 1, 2000... Introduction In excess of 12 million ha of acid sulfate soils exist worldwide with 3 million ha in Australia (White et al. 1997). If not managed appropriately, acidic leachate from acid sulfate soils can lead to severe acidification of...

Predicting the probabilities of groundwater contamination by pesticides under variable recharge.(Statistical Data Included)
May 1, 2000... Introduction The use of pesticides (including herbicides, fungicides, and insecticides) in agricultural and horticultural practices has increased dramatically in recent decades throughout the world, with a corresponding increase in concern...

Sorption--desorption and column leaching of strychnine with soil.(Statistical Data Included)
May 1, 2000... Introduction Strychnine ([C.sub.21][H.sub.22][N.sub.2][O.sub.2]) is commonly used for the control of mice, rats, and other rodents in various parts of the world, including Australia. It is often used as pellets distributed in the...

Leaching and degradation of triasulfuron, metsulfuron-methyl, and chlorsulfuron in alkaline soil profiles under field conditions.(Statistical Data Included)
May 1, 2000... Introduction Triasulfuron, metsulfuron-methyl, and chlorsulfuron are the 3 most commonly used sulfonylurea herbicides for controlling broad-leaved weeds in the cereal crops of southern Australia. The compounds are weak acids (p[K.sub.a] =...

Denitrification and immobilisation in flood-irrigated alkaline grey clays as affected by nitrification inhibitors, wheat straw, and soil texture.(Statistical Data Included)
May 1, 2000... Introduction Recent field studies of N fertiliser losses from irrigated clay cotton-growing soils have indicated that nitrification inhibitors may reduce loss of N fertiliser and increase cotton lint yield in some circumstances (Freney et...

The distribution of net nitrogen mineralisation within surface soil. 2. Factors influencing the distribution of net N mineralisation.(Statistical Data Included)
May 1, 2000... Introduction A major source of nitrogen (N) to crops is that derived from the mineralisation of organic matter. At 6 sites in the Riverina and south-west slopes, Angus et al. (1998) found that for crops yielding [is less than] 3 t/ha, the...

Availability of nitrogen and phosphorus under recycled water irrigation.(Statistical Data Included)
May 1, 2000... Introduction Concerns about eutrophication of surface water and contamination of ground water are strongly linked to nitrogen (N) and phosphorus (P) pollution originating from agriculture (Keeney et al. 1971; Sumner and McLaughlan 1996)...

Virtual fractionation of charcoal from soil organic matter using solid state [sup.13]C NMR spectral editing.(Statistical Data Included)
May 1, 2000... Introduction Charcoal, derived from the incomplete combustion of vegetation or fossil fuels, is a ubiquitous component of soils (Skjemstad et al. 1996; Glaser et al. 1998) and sediments (Kuhlbusch 1998; Masiello and Druffel 1998). Charcoal...

Plant effects on soil carbon storage and turnover in a montane beech (Nothofagus) forest and adjacent tussock grassland in New Zealand.(Statistical Data Included)
May 1, 2000... Introduction The role of the terrestrial biosphere in the global carbon (C) cycle is still poorly understood because of the complex biology underlying C storage, the spatial variability of vegetation and soils, and the effects of land use....

Tracing the nitrogen, sulfur, and carbon released from plant residues in a soil/plant system.(Statistical Data Included)
May 1, 2000... Introduction There is a need to study and monitor the fate of carbon and nutrients released from crop residues to enable them to be managed effectively, and to improve and sustain soil organic matter and crop productivity. Many studies...

Amelioration of subsurface acidity in the south-west of Western Australia: downward movement and mass balance of surface-incorporated lime after 2-15 years.(Statistical Data Included)
May 1, 2000... Introduction Agriculturally generated subsurface soil acidity is a potential threat to the sustainability of agriculture on sandy soils (Loss et al. 1993; Dolling and Porter 1994; Dolling et al. 1994; Dolling 1995) which comprise a large...

A modified chromium-reducible sulfur method for reduced inorganic sulfur: optimum reaction time for acid sulfate soil.
May 1, 2000... Introduction Acid sulfate soil is of environmental importance due to the potential for acidification that accompanies the oxidation of these materials. For example, sulfide oxidation following the disturbance of acid sulfate soils can...

Comparison of single superphosphate and superphosphate coated with bauxite residue for subterranean clover production on phosphorus-leaching soils.
May 1, 2000... Introduction The coastal sandplains of south-west Western Australia have an average annual rainfall [is greater than] 800 mm where up to 90% falls during the growing season for pasture between April and October. The soils have a coarse,...

Accessibility of subsoil potassium to wheat grown on duplex soils in the south-west of Western Australia.(Statistical Data Included)
May 1, 2000... Introduction Potassium (K) deficiency was first reported in pastures in the wetter regions of the south-west of Western Australia (Fitzpatrick and Dunne 1956) and later extended to pastures grown in the medium rainfall (400-600 mm) regions...

Magnesium fertiliser dissolution rates in pumice soils under Pinus radiata.
May 1, 2000... Introduction Magnesium (Mg) deficiency is common in a number of forest regions in the world. In New Zealand it has been linked to a condition in Pinus radiata called upper mid-crown yellowing (Payn 1991; Beets and Jokela 1994). In Europe...