Australian Journal of Soil Research articles from May 2008

Australian Journal of Soil Research archives from May 2008

Effect of soil wetting conditions on seal formation, runoff, and soil loss in arid and semiarid soils--a review.(Report)
May 1, 2008... Introduction Arid and semiarid regions are characterised by water scarcity and highly variable precipitation. In addition, the water resources in some parts of these regions are expected to decrease as a result of global warming. The soils...

Effects of crop and pasture rotations and surface cover on rainfall infiltration on a Kandosol in south-west Queensland.(Report)
May 1, 2008... Introduction The south-west Queensland cropping region, which includes the Roma, St George, and Dirranbandi districts, is marginal for rainfed crop production. The region receives an annual average rainfall of 500-600 mm, with 20-30%...

Assessment of spatial variability of penetration resistance and hardpan characteristics in a cassava field.(Report)
May 1, 2008... Introduction Soil is not considered as a closed system, but a product of the interaction of several soil formation processes. That interaction transmits complexity to the soil and produces a dynamic and heterogeneous system (Trangmar et...

Deriving point and parametric pedotransfer functions of some gypsiferous soils.(Report)
May 1, 2008... Parametric description of the soil water retention curve as well as the hydraulic conductivity curve is needed for modelling water movement and solute transport in the vadose zone. The objective of this study was to derive pedotransfer...

Water drawdown by radish (Raphanus sativus L.) multiple-root systems evaluated using computed tomography.(Report)
May 1, 2008... Introduction The physical description of processes involved with soil water uptake by plant roots is not an easy task due to the complexity associated with the transient state of water flow in the soil (de Willigen et al. 2002). These...

Pasture yield and soil physical property responses to soil compaction from treading and grazing--review.(Report)
May 1, 2008... Introduction Globally, livestock-based agriculture continues to intensify, and there is increasing concern regarding its environmental impacts such as deforestation, overgrazing causing compaction, soil degradation, erosion, and water...

Organic anions in the rhizosphere of Al-tolerant and Al-sensitive wheat lines grown in an acid soil in controlled and field environments.(Report)
May 1, 2008... Introduction Aluminium (Al) toxicity at low soil pH is a major problem in much of the arable land around the world (von Uexkull and Mutert 1995). Plants have a suite of mechanisms to deal with this hostile soil condition, including...

Effect of continuous cropping on potassium forms and potassium adsorption characteristics in calcareous soils of Iran.(Report)
May 1, 2008... Introduction Cultivation and associated K fertiliser applications affect soil K pools. Previous studies have investigated changes in amounts of different soil K forms associated with agricultural development (Sparks et al. 1980; Sharpley...

Microbial C[O.sub.2] production from surface and subsurface soil as affected by temperature, moisture, and nitrogen fertilisation.(Report)
May 1, 2008... Introduction Soil organic matter (SOM) is a major reservoir of organic carbon, which is estimated at about 1550 Pg, twice as much as C in the atmosphere (Raich and Potter 1995; Batjes 1996). Since the pool of C in the atmosphere is...

Short-term effects of wheat straw incorporation into paddy field as affected by rice transplanting time.(Report)
May 1, 2008... Introduction China has 13 million ha of rice--wheat cropping, mainly in the 4 provinces, namely Jiangsu, Anhui, Hubei, and Sichuan along the Yangtze River Valley (Zheng 2000). Incorporation of wheat straw in the following rice growth...