Australian Journal of Soil Research articles from July 2000

Australian Journal of Soil Research archives from July 2000

Recent advances in the application of [sup.13]C and [sup.15]N NMR spectroscopy to soil organic matter studies.(Statistical Data Included)
July 1, 2000... Introduction Nuclear magnetic resonance (NMR) spectroscopy has developed rapidly since the early 1960s. Recent advancements in NMR spectroscopy have allowed for the application of its versatile techniques to intact soils as well as...

The crystallo-chemistry of oxide-humus complexes.(Statistical Data Included)
July 1, 2000... Introduction A previous investigation of various chemical influences on oxide-humic acid (HA) complexation (Varadachari et al. 1997) had revealed unusual patterns of complexation amongst the minerals. All of this suggested the preponderant...

Comparison of pyrocatechol violet and aluminon for the determination of `reactive' aluminium in the presence of organic acids.(Statistical Data Included)
July 1, 2000... Introduction Studies of the effect of aluminium (Al) on plant growth indicate that the species primarily responsible for phytotoxicity are free [Al.sup.3+], Al[OH.sup.2+], and [MATHEMATICAL EXPRESSION NOT REPRODUCIBLE IN ASCII], with the...

Method for assessing plant-available cadmium in soils.
July 1, 2000... Introduction The complex nature of soil processes and soil-plant relations is probably one of the major reasons for the existence of a large number of methods to assess the `plant-available' fraction of nutrients and heavy metal ions....

Understanding subsoil acidification: effect of nitrogen transformation and nitrate leaching.
July 1, 2000... Introduction Soil acidification under current agricultural practices is an important land degradation process, which eventually limits crop and pasture production. Topsoil acidity is commonly ameliorated with liming. Unfortunately, in many...

Nutrient concentrations in soil solution of some Brazilian Oxisols under conventional and no-tillage systems in the early part of the rainy season.(Statistical Data Included)
July 1, 2000... Introduction Soil management systems, i.e. different tillage techniques and no-till, affect chemical and physical soil properties (Lal 1976; Blevins et al. 1983; Dick and Daniel 1987). Various authors reported higher concentrations of soil...

Modelling current parna distribution in a local area.(Statistical Data Included)
July 1, 2000... Introduction Parna (a windblown clay) has influenced many soil landscapes of south-eastern Australia. It has been reported as a beneficial addition to some landscapes (Butler 1958). However, some source areas for parna have been reported...

A spatial analysis of lateral and vertical fluxes of water associated with a perched watertable in a duplex soil.
July 1, 2000... Introduction Yellow and yellow-grey duplex soils cover about 60% of the agricultural area under wheat and sheep production in Western Australia, and they are the predominant soil types on which crop production is concentrated (Turner...

Laboratory experiments and modelling studies of leaching of intermittently drained columns.(Statistical Data Included)
July 1, 2000... Introduction Excess salts may be removed from soil by leaching, but ponding water on the soil surface and allowing infiltration requires large quantities of water. During such leaching water flows preferentially through macropores between...

Evaluation and development of hydraulic conductivity pedotransfer functions for Australian soil.(Statistical Data Included)
July 1, 2000... Introduction Saturated hydraulic conductivity ([K.sub.s]) is an important physical factor determining water and solute transport in soil. Knowledge of [K.sub.s] is useful in managing irrigation and drainage problems and in environmental...