Precision Ag Tools

for Sustainable Farming

@TimNeale1 @AgPrecision

Sustainabiltiy issues

• Acidity

• Salinity

• Soil erosion

• Waterlogging/denitrification

Variable rate liming

for acidity

14,000,000 ha in WA (crop lands)

20,000,000 ha in NSW (ag lands)

To raise the pH of all soils in

Australia to 5.5, need to apply a

66 million tonnes of lime

Variable rate

liming for acidity

70,000ha now

completed

Confident lime decisions

Right rate / Right Place

Increased production

1237ha

80% lime saving

$140,000

As seen in Google Earth

EM38 for salt/soil

Soil erosion

Runoff

velocity

Stubble cover

studies using

imagery

Red is <30%

Waterlogging/denitrification

RTK Topography mapping

Hopefully to avoid this

36ha waterlogging (140ha Block)

2010 Canola $52,000 loss

5ha waterlogging (4% of area)

2011 Wheat $42,000 gain

• Elevation data from

GPS machinery

• Review against yield

or satellite imagery

• Re-design paddock

• Send drainage lines

to machine

• Contractor installs

drains

Denitrification

(Nitrous oxide)

• Light soil, good

cotton crop

210kg Nitrogen

remaining

• Heavy soil, poor

cotton crop

72kg Nitrogen

remaining

Questions?