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Contributed Papers

SOILPH - A NEW APSIM MODULE FOR MANAGEMENT OF SOIL ACIDIFICATION
Z.Hochman1, S. Braithwaite1, M.E. Probert1, K. Verburg2 and K.R. Helyar3

Describing Soil pH Profiles and Their Effect on Yield of Cereal Crops
F.J. Leech1, K.R. Helyar1 and G. Geeves2

Nitrate leaching under sugarcane: interactions between crop yield, soil type and management strategies
K. Verburg1, B.A. Keating2, M.E. Probert2, K.L. Bristow1 and N.I. Huth2

Impact of cropping on fertility of north Queensland ferrosols
M.J. Bell1, B.J. Bridge2, K.L. Norman3, G.R. Harch1 and D.N. Orange4

Development of a Carbon-Based Sustainability Index for Ferrosols in Rainfed Cropping Systems
M.J. Bell1, P.W. Moody2, R.D. Connolly1,3, G.R. Harch1, P.S. Want1 and S.A. Yo2

ARE 'CONSERVATIVE' CROPPING SYSTEMS IMPROVING SOIL INFILTRATION, ORGANIC CARBON AND BULK DENSITY IN SOUTHERN NSW?
Packer1, J. Medway2, B. Jones1 and T. Koen1

SOIL PHYSICAL STATUS IN A LONG-TERM LAND MANAGEMENT TRIAL AND ADJACENT NEW TRIAL AT HALBURY, SOUTH AUSTRALIA
D.K. Malinda, J.E. Schultz and R. Darling

MINIMUM TILLAGE EFFECTS ON SOIL STRUCTURE MEASURED USING IMAGE ANALYSIS
E. A. Roesner

FACTORS INFLUENCING SOIL AND NUTRIENT LOSS IN STORMWATER FROM A MARKET GARDEN
E. Hollger, B. Baginska and P. S. Cornish

Phosphorus and Carbon Losses off Dairy Catchments Located on Duplex Soils
N. K. Fleming1,2 and J.W. Cox2

DAIRY PASTURE YIELD AND QUALITY RESPONSES TO NITROGEN, PHOSPHORUS, POTASSIUM AND SULPHUR
F. McKenzie, M. Ryan, J. Jacobs, S. Rigby, G. Ward and S. Burch

NUTRIENT EXPORT FROM RURAL LAND IN THE HAWKESBURY-NEPEAN CATCHMENT
B. Baginska1, P. S. Cornish1, E. Hollinger1, G. Kuczera2 and D. Jones3

SURFACE APPLICATION OF BIOSOLIDS TO PASTURES - PRELIMINARY RESULTS OF ENVIRONMENTAL RISK
D.L. Michalk and I.H. Curtis

NITROGEN FERTILISER DECISIONS FOR WHEAT ON THE LIVERPOOL PLAINS NSW 1. SHOULD FARMERS CONSIDER PADDOCK HISTORY AND SOIL TESTS?
J. E. Turpin1, P.T. Hayman2, H. Marcellos2 and D.F. Freebairn3

EFFECT OF VARIOUS MANAGEMENT SYSTEMS ON N MINERALISATION IN SURFACE SOILS
K.I. Paul1, A.S. Black1 and M.K. Conyers2

N MINERALISATION AND NITRIFICATION IN CROP AND PASTURE SOILS
A.S. Black1, E. Purnomo1,2, S.R. Young1,3, M. Conyers4

SOIL PH CHANGE OVER TIME IN RELATION TO ROTATION, N FERTILISER, STUBBLE MANAGEMENT AND TILLAGE
D.P. Heenan, W.J. McGhie and M.K. Conyers

Changes in Soil Ph Resulting from Simulated Urine Patches
J. R. Condon1, A. S. Black1, and M. K. Conyers.2

EVOLUTION OF NITRATE AND AMMONIUM FROM BANDED UREA AT TWO SOIL TEMPERATURES
W. Dowling

Burial of lime by earthworms in acid soils in Western Australia
G.H. Baker, C.S. Obst and V.J. Barrett

THE IMPACT OF ROTATION, STUBBLE MANAGEMENT AND TILLAGE ON THE RELATIVE CONTRIBUTION OF BACTERIAL AND FUNGAL MICROBIAL BIOMASS.
W. J. McGhie1,2, B. Jacobs2 and D.P. Heenan1

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