Australian Journal of Soil Research articles from March 1998

Australian Journal of Soil Research archives from March 1998

Effects of spent mushroom substrate on soil chemical conditions and plant growth in an intensive horticultural system: a comparison with inorganic fertiliser.
March 1, 1998... Additional keywords: sweetcorn, cabbage, potato, inorganic nitrogen, plant nutrient concentration. Introduction Spent mushroom substrate (SMS) is a by-product of the mushroom industry. In New Zealand, approximately 60 000 t is...

Sorption and desorption of cadmium from some New Zealand soils: effect of pH and contact time.
March 1, 1998... Additional keywords: Cd, organic carbon. Introduction Cadmium (Cd) is considered an important environmental soil pollutant, as it is a potentially biotoxic heavy metal that is readily absorbed by plants and has potential to enter the...

Nitrogen mineralisation rates from soil amended with dairy pond waste.
March 1, 1998... Additional keywords: soil nitrogen, organic waste, sludge, incubation, urease, deaminase, water soluble C, biomass N, biomass C. Introduction Land application of organic wastes is becoming more widespread as a means of disposal,...

Mineralization of soil organic nitrogen and microbial respiration after simulated summer rainfall events in an agricultural soil.
March 1, 1998... Additional keywords: pasture, wheat, [sup.15]N isotopic dilution. Introduction The climate of the Western Australian agricultural region is typified by hot dry summers and wet mild winters. During summer, air temperature can exceed...

Nitrogen distribution in soil density fractions and its relation to nitrogen mineralisation under different tillage systems.
March 1, 1998... Additional keywords: no-tillage, chisel tillage, plough tillage, soil organic nitrogen, potential nitrogen mineralisation. Introduction Cultivation of virgin lands causes a swift decline of soil organic nitrogen, specially during the...

The distribution and relative losses of soil organic carbon fractions in aggregate size fractions from cracking clay soils (Vertisols) under cotton production.
March 1, 1998... Additional keywords: labile carbon, light fraction, isotope ratios, organic matter. Introduction Maintenance of soil organic matter, which in turn relies on an understanding of soil organic matter dynamics, is essential for...

Soil acidification and the carbon cycle in a cropping soil of north-eastern Victoria.
March 1, 1998... Additional keywords: acidification, organic matter, acid soils, soil carbon. humic, fulvic. Introduction Traditional cropping systems in south-eastern Australia rely on significant nitrogen inputs through the use of legumes in the...

The UFA method for rapid, direct measurements of unsaturated transport properties in soil, sediment, and rock. (unsaturated/saturated flow apparatus)
March 1, 1998... Additional keywords: hydraulic conductivity, recharge, transport, Darcy's Law, soil physical properties, subsurface hydrogeologic mapping, van Genuchten, Mualem, water retention, matric potential. Introduction Over the last decade a...

Sensitivity of selected water retention functions to compaction and inherent soil properties.
March 1, 1998... Additional keywords: sod water, bulk density, texture. Introduction Information on field-scale variations in subsurface soil hydraulic characteristics is required for the modelling of water and solute transport and for efficient...

Influence of surface zones with zero detachment on erosion by rain-impacted flow.
March 1, 1998... Additional keywords: rainfall erosion, erosion modelling, vegetative cover. Introduction Vegetative cover is well recognised as a factor in rainfall erosion. However, there have been a number of field and laboratory experiments...

Recharge estimation for the Liverpool Plains. (New South Wales, Australia)
March 1, 1998... Additional keywords: deep drainage, simulation, dryland salinity, water balance. Introduction It is generally accepted that secondary salinity in a landscape arises due to a change in the water balance after original vegetation,...