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Changes in chemical and biological properties of a sodic clay subsoil with addition of organic amendments
An experiment was performed to examine the chemical and biological effects on high clay sodic subsoil following the incorporation and incubation with organic amendments. The main treatments consistedExpand
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The role of hydraulic lift and subsoil P placement in P uptake of cotton (Gossypium hirsutum L.)
Hydraulic lift can be a desirable characteristic for cotton growing in areas that experience frequent drying of the topsoil. This study employed specialized soil columns to test if cotton canExpand
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Amelioration of dense sodic subsoil using organic amendments increases wheat yield more than using gypsum in a high rainfall zone of southern Australia
Subsoil constraints are major limiting factors in crop production in many soils of southern Australia. A field study examined effects of deep incorporation of organic and inorganic amendments inExpand
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Phosphorus acquisition characteristics of cotton (Gossypium hirsutum L.), wheat (Triticum aestivum L.) and white lupin (Lupinus albus L.) under P deficient conditions
A rhizobox experiment was conducted to examine the P acquisition characteristics of cotton (Gossypium hirsutum L.), wheat (Triticum aestivum L.) and white lupin (Lupinus albus L.) under P-deficientExpand
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Comparison of cation/anion exchange resin methods for multi-element testing of acidic soils
Increasing laboratory costs and time constraints have stimulated development of techniques which allow the simultaneous extraction of many elements from soil. We assessed several techniques usingExpand
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A discussion of the methods for comparing the relative effectiveness of phosphate fertilizers varying in solubility
Because various phosphate (P) fertilizers differ widely in their solubility, it is commonly observed that crop response to P fertilizers varies under the same soil and crop conditions. Furthermore, aExpand
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The influence of the soil matrix on nitrogen mineralisation and nitrification. IV.Texture
Small undisturbed soil volumes (c. 1·7 cm3) were collected from the surface of a small field plot. Soil volumes were treated with clover-derived substrate, dried and rewetted, or retainedExpand
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A survey of farmers' attitudes, management strategies and use of weather and seasonal climate forecasts for coping with climate variability in the perennial pasture zone of south-east Australia
A survey of 62 producers in the perennial pasture zone of south-eastern Australia was undertaken to gain an understanding of farmer attitudes toward climate variability, the use of weather andExpand
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Increasing phosphorus supply in subsurface soil in northern Australia: Rationale for deep placement and the effects with various crops
Three field experiments involving wheat, lucerne or cotton were established at different sites in the semiarid cropping regions of northern Australia, to test whether the deep placement of PExpand
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Effects of increased levels of soil CaCO3 on Lupin (Lupinus angustifolius) growth and nutrition
Little published evidence exists which relates narrow-leafed lupin growth to lime levels in soils when compared with growth on a soil with minimal or zero levels of lime. This pot experiment measuredExpand
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