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Decision making from moisture probes
Dale Boyd DEDJTR, Echuca
DEDJTR Soil moisture monitoring sites
across the state
Clay loam soil
Capacitance probes & placement
Probe put down
with slurry
Trench dug from
fence line
Werrimull – summed soil moisture 2015
2015 Jan Mar May July Sept Nov Jan 2016
Total soil
moisture
30-100cm
Werrimull – stacked individual traces
30cm
40cm
50cm
60cm
70cm
80cm
90cm
100cm
Speedo to quickly identify total soil moisture at key time periods
Wimmera – summed soil moisture 2015
2015 Jan Mar May July Sept Nov
Total soil
moisture
30-100cm
Ouyen – soil moisture history 2013-16
2013 Spring 2014 Spring 2015 Spring
Moisture down to 90cm
with this rain event
Moist...
Verify data with field inspections and soil core to validate
moisture is at the depth indicated by the sensor
Protection and maintenance
Automatic rain gauges are not
maintenance free
Any Questions
• If you would like to be applied to the monthly
distribution list or live internet access-contact me
Summary
•Comparison of soil moisture changes across
different years – rainfall and moisture depletion
•Need to determine c...
Decision making from moisture probes - Dale Boyd (DEDJTR)
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Decision making from moisture probes - Dale Boyd (DEDJTR)

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Crop potential and cropping inputs are increasingly being subject to greater instability and uncertainty due to seasonal variability. There are increasing examples of soil moisture probes installed in dryland cropping system in Victoria with interest from both service providers and farmers. This technology is being used to gain a greater understanding of seasonal conditions through a repeatable measurement in the soil rather than estimates based on rainfall.

Published in: Science
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Decision making from moisture probes - Dale Boyd (DEDJTR)

  1. 1. Decision making from moisture probes Dale Boyd DEDJTR, Echuca
  2. 2. DEDJTR Soil moisture monitoring sites across the state Clay loam soil
  3. 3. Capacitance probes & placement
  4. 4. Probe put down with slurry Trench dug from fence line
  5. 5. Werrimull – summed soil moisture 2015 2015 Jan Mar May July Sept Nov Jan 2016 Total soil moisture 30-100cm
  6. 6. Werrimull – stacked individual traces 30cm 40cm 50cm 60cm 70cm 80cm 90cm 100cm
  7. 7. Speedo to quickly identify total soil moisture at key time periods
  8. 8. Wimmera – summed soil moisture 2015 2015 Jan Mar May July Sept Nov Total soil moisture 30-100cm
  9. 9. Ouyen – soil moisture history 2013-16 2013 Spring 2014 Spring 2015 Spring Moisture down to 90cm with this rain event Moisture to 60cm through winter
  10. 10. Verify data with field inspections and soil core to validate moisture is at the depth indicated by the sensor
  11. 11. Protection and maintenance Automatic rain gauges are not maintenance free
  12. 12. Any Questions • If you would like to be applied to the monthly distribution list or live internet access-contact me
  13. 13. Summary •Comparison of soil moisture changes across different years – rainfall and moisture depletion •Need to determine crop upper and lower limits (critical for decision making) •Key management decisions -Crop type (particularly in low rainfall zones) -In crop inputs (nitrogen) - Upfront inputs - Disease control - marketing - Salvaging crop

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