Assessment of the impact of lime upon plant biomass and yield

CC BY 4.0

Research organisaton
Funding source

Trial details

Researcher(s) Nick Hill (CWFS)
Year(s) 2014
Contributor Central West Farming Systems
Trial location(s) Condobolin, NSW
Assessment of the impact of lime upon plant biomass and yield locations

To increase grower awareness of the benefits of applying Lime to a cropping operation. Providing local relevance to farmers.

Key messages

Soil acitidy is affecting grain yield. 2014 investigation of a farmer led onfarm lime trial clearly identified the benefits of applying agricultural lime. The farmer applied 3 rates of lime and left 2 control strips. Both limed and control strips were soil cored and the pH within the soil profile was identified at depth for 5 individual sections. Results demonstrated that where the maximum rate of lime was applied, the soil pH within the profile was appropriate for plant growth. Where no lime was applied soil pH was significant enough to impact upon plant growth. Biomass cuts taken at Anthesis, from both the limed and control strips, showed a correlation between soil pH and plant growth. Grain samples taken from both the limed and control strips prior to harvest also showed a correlation between grain yield and soil pH. Where soil pH was above 5.5 plant growth and yeild was highest.

Lead research organisation Central West Farming Systems
Host research organisation N/A
Trial funding source GRDC CWF00020
Related program N/A

CWFS would like to acknowlege the cooperating farmer for allowing access to his on farm lime trial.

Other trial partners Not specified
Download the trial report to view additional trial information


Crop type Wheat
Treatment type(s)
  • Fertiliser: Rate
Trial type Demonstration
Trial design Unreplicated

Condobolin 2014

Sow date Not specified
Harvest date Not specified
Plot size Not specified
Plot replication Not specified
Download the trial report to view additional method/treatment information
Trial source data and summary not available
Check the trial report PDF for trial results.
Observed trial site soil information
Trial site soil testing
Not specified
Soil conditions
Trial site Soil texture
Condobolin, NSW Red sandy loam
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Condobolin, NSW Kandosol
Soil Moisture Source: BOM/ANU
Average amount of water stored in the soil profile during the year, estimated by the OzWALD model-data fusion system.
Year Condobolin NSW
2014 206.0mm
2013 206.6mm
2012 243.4mm
2011 179.2mm
2010 185.0mm
2009 73.3mm
2008 90.9mm
2007 80.4mm
2006 119.2mm
2005 154.3mm
2004 155.8mm
2003 154.0mm
2002 162.4mm
2001 230.3mm
2000 300.5mm
National soil grid Source: CSIRO/TERN
NOTE: National Soil Grid data is aggregated information for background information on the wider area
Actual soil values can vary significantly in a small area and the trial soil tests are the most relevant data where available

Soil properties



Derived climate information

No observed climate data available for this trial.
Derived climate data is determined from trial site location and national weather sources.

Condobolin NSW


Some data on this site is sourced from the Bureau of Meteorology

SILO weather estimates sourced from
Jeffrey, S.J., Carter, J.O., Moodie, K.B. and Beswick, A.R. (2001). Using spatial interpolation to construct a comprehensive archive of Australian climate data , Environmental Modelling and Software, Vol 16/4, pp 309-330. DOI: 10.1016/S1364-8152(01)00008-1.

Trial last modified: 28-08-2019 11:00am AEST