Australian Journal of Soil Research articles from July 1998

Australian Journal of Soil Research archives from July 1998

Effuent irrigation-an environmental challenge for soil science.
July 1, 1998... Additional keywords: salinity, sodicity, nitrate leaching, role of soil science. Introduction Traditionally, soil science has been concerned with issues related to agricultural production. With the growth of concern for the impact of...

Atrazine mineralisation in New Zealand topsoils and subsoils: influence of edaphic factors and numbers of atrazine-degrading microbes.
July 1, 1998... Additional keywords: microbial degradation, subsoil. Introduction The herbicide atrazine (2-chloro-4-ethylamino-6-isopropylamino -1,3,5-s-triazine) is widely used for weed control in horticulture and arable farming in New Zealand....

Effects of soil pH and applied cadmium on cadmium concentration in wheat grain.
July 1, 1998... Additional keywords: distribution coefficient, EDTA-extractable Cd, transfer coefficient. Introduction The main source of cadmium (Cd) in Australian agriculture is phosphatic fertilisers (Williams and David 1973; Tiller et al. 1998)....

Forms of phosphorus in virgin and fertilised calcareous soils of Western Australia.
July 1, 1998... Additional keywords: P fractions, active P, available P. Introduction Cultivation and associated phosphorus (P) fertiliser applications affect soil fertility via the forms of P that develop in the soil, and the availability of this P...

Soil structure assessment and 3-dimensional visualisation of a Vertosol under controlled traffic.
July 1, 1998... Additional keywords: resin impregnation, 3-D soil structure, wheel tracks. Introduction Controlled traffic and permanent beds in irrigated agriculture in Australia have been studied in detail (McGarry 1987, 1990; Daniells 1989;...

Effect of long-fallow on soil quality and cotton lint yield in an irrigated, self-mulching, grey Vertosol in the central-west of New South Wales.
July 1, 1998... Additional keywords: cracking clay, minimum tillage, soil organic C, farming system, mychorrhiza, black root rot, long-fallow disorder. Introduction In eastern Australia, irrigated cotton (Gossypium hirsutum L.) is grown as a...

Effect of ammonium, organic amendments, and plant growth on soil pH stratification.
July 1, 1998... Introduction Soil acidification is a major concern in Australia (Donald and Williams 1954; Williams 1980; Coventry and Slattery 1991), especially in the wheatbelt area of eastern Australia (Greenland 1971; Cregan et al. 1979; Helyar et...

Soil organic carbon fractions in a Vertisol under irrigated cotton production as affected by burning and incorporating cotton stubble.
July 1, 1998... Additional keywords: light fraction, labile carbon, carbon management index, [[Delta].sup.13]C. Introduction Cotton (Gossypium hirsutum L.) production in Australia is mostly carried out on Vertisols, also known as cracking clay...

A survey of the impact of cropping on soil physical adn chemical properties n north-western New South Wales.
July 1, 1998... Additional keywords: soil survey, soil physical fertility, soil chemical fertility, soil degradation, carbon. Introduction Many Australian soils used for cropping are fragile and highly degraded. Farming practices such as crop...

A scheme for evaluating the effectiveness of riparian zones in reducing overland flow to streams.
July 1, 1998... Additional keywords: riparian zone, hydrology, infiltration, storage capacity, land management. Introduction Riparian zones are zones of vegetation adjacent to streams that serve to moderate environmental processes occurring between...

Genesis of podzols on costal dunes in southern Queensland. V. chemistry adn mineralogy of the non-opaque heavy mineral fraction.
July 1, 1998... Additional keywords: pedogenesis, chronosequence, zircon, rutile, weathering. Introduction Heavy minerals, particularly members of the magnetic suite such as zircon, rutile, and xenotime, have been widely but uncritically used to...