Using Conservation Agriculture to  improve water use efficiency inwheat crops on the Branson farm in         South Austral...
The Branson’s Family Farm          Area: 1200ha            Stockport   Lower North of South Australia     Rainfall: 425mm ...
Stockport
Crops Grown (80%)  - Durum and Bread Wheat  - Malting Barley  - Canola  - Faba Beans  - Field Peas  - Pasture Seeds
Clover and Duel    Sheep    –(20%) Purpose Cereal                       PasturesSelf Replacing Merino Flock And a Prime La...
Water Use Efficiency (WUE)  over 23 years in wheat                              4.50                     100.005 Year Aver...
French/Schultz Potential Yield         Model for WheatPotential Yield = (GSR-110)*20ie. If GSR = 350mm Potential Yield = (...
French/Schultz Potential Yield           Model for WheatPotential Yield = (GSR-110)*20Potential Yield = (350-110)*20 = 480...
WUE over 23 years                              4.50                      100.005 Year Average Yield (T/Ha)                ...
WUE from 1988 to 2005                              4.50                                                                   ...
Years from 1988 to 2001Farming system changes• Introduction of Grain Legumes and Oilseed crops.• Introduced new wheat vari...
WUE from 2002 to 2010                                4.00                                                     100.00      ...
Years from 2002 to 2010Farming system changes•   No-Till enforced•   Precision Agriculture introduced•   Controlled Traffi...
WUE from 2002 to 2010                                4.00                                                     100.00      ...
My Farming System in 2011
No-Till
Sowing Equipment-JD 8200 Tractor (200hp)-CASE PTX – 600 32’Barr, 9” Alternate spacing-Horwood Bagshaw 3*2000L quad box, el...
Controlled Traffic
Sowing equipment 1/4 width of Sprayer                        9.8m sowing equipment                          2.2M Spacing39...
Compaction• When using                   • Most of therandom                         compactiontraffic in a               ...
Precision AgricultureMainly VR Nutrients, Seed, and Weed Management.
Autosteer - RTK 2cm Guidance
Inner Row Sowing
Spray Equipment-Millar Nitro 3275-4wd, High Clearance-39 M Boom-RTK 2cm Autosteer and Autosection Cutoff-Ideal for Control...
Header-Case 7120-30ft Honey Bee Draper Front-Chopper-15T Chaser Bin-AFS Yield Monitor
Yield Monitor
Durum Wheat• Last year Faba Beans• No Nitrogen applied till flag leaf  emergence, mainly for protein.• Deep N test at sowi...
Durum Wheat
Thanks
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Using CA to improve water use efficiency in wheat crops on the Branson farm in SA. Mark Branson

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A presentation at the WCCA 2011 event in Brisbane.

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Using CA to improve water use efficiency in wheat crops on the Branson farm in SA. Mark Branson

  1. 1. Using Conservation Agriculture to improve water use efficiency inwheat crops on the Branson farm in South Australia. Mark Branson (B.AppSc (Agric), 2005 Nuffield Scholar,)
  2. 2. The Branson’s Family Farm Area: 1200ha Stockport Lower North of South Australia Rainfall: 425mm to 525mm Dryland Farming System
  3. 3. Stockport
  4. 4. Crops Grown (80%) - Durum and Bread Wheat - Malting Barley - Canola - Faba Beans - Field Peas - Pasture Seeds
  5. 5. Clover and Duel Sheep –(20%) Purpose Cereal PasturesSelf Replacing Merino Flock And a Prime Lamb Flock
  6. 6. Water Use Efficiency (WUE) over 23 years in wheat 4.50 100.005 Year Average Yield (T/Ha) 5 Year Average % Potential 95.00 4.00 90.00 85.00 3.50 80.00 Yield (T/Ha) Yield 75.00 % Potential Yield Linear (% Potential Yield) 3.00 70.00 65.00 2.50 60.00 55.00 2.00 50.00 1988-93 1990-94 1991-95 1992-96 1993-97 1994-98 1995-99 1996-00 1997-01 1998-02 1999-03 2000-04 2001-05 2002-06 2003-07 2004-08 2005-09 2006-10 5 Year Period
  7. 7. French/Schultz Potential Yield Model for WheatPotential Yield = (GSR-110)*20ie. If GSR = 350mm Potential Yield = (350-110)*20 = 4800kg/ha
  8. 8. French/Schultz Potential Yield Model for WheatPotential Yield = (GSR-110)*20Potential Yield = (350-110)*20 = 4800kg/haIf actual yield was 4000kg/haThen % potential yield = 4000/4800 = 83%Ie the Water Use Efficiency is 83%
  9. 9. WUE over 23 years 4.50 100.005 Year Average Yield (T/Ha) 5 Year Average % Potential 95.00 4.00 90.00 85.00 3.50 80.00 Yield (T/Ha) Yield 75.00 % Potential Yield Linear (% Potential Yield) 3.00 70.00 65.00 2.50 60.00 55.00 2.00 50.00 1988-93 1990-94 1991-95 1992-96 1993-97 1994-98 1995-99 1996-00 1997-01 1998-02 1999-03 2000-04 2001-05 2002-06 2003-07 2004-08 2005-09 2006-10 5 Year Period
  10. 10. WUE from 1988 to 2005 4.50 100.005 Year Average Yield (T/ha) 5 Year Average % Potential 4.00 90.00 Yield (%) 3.50 80.00 Yield (T/Ha) % Potential Yield Linear (% Potential Yield) 3.00 70.00 2.50 60.00 WUE annual increase of 1.1% 2.00 50.00 1988-93 1990-94 1991-95 1992-96 1993-97 1994-98 1995-99 1996-00 1997-01 1998-02 1999-03 2000-04 2001-05 5 Year Periods
  11. 11. Years from 1988 to 2001Farming system changes• Introduction of Grain Legumes and Oilseed crops.• Introduced new wheat varieties.• Nitrogen based fertilizers introduced.• Stubble retention enforced.• No-Till introduced.
  12. 12. WUE from 2002 to 2010 4.00 100.00 5 Year % Potential Yield (%) 5 Year Average Yield (T/Ha) 90.00 Yield (T/Ha) 80.00 % Potential Yield 3.50 Linear (% Potential Yield) 70.00 60.00 WUE annual increase 2% 3.00 50.00 2002-06 2003-07 2004-08 2005-09 2006-10 5 Year Period
  13. 13. Years from 2002 to 2010Farming system changes• No-Till enforced• Precision Agriculture introduced• Controlled Traffic introduced• Introduction of using animal manures as an additional carbon source• Growing as many high carbon crops as possible• Inter – Row sowing introduced.
  14. 14. WUE from 2002 to 2010 4.00 100.00 5 Year % Potential Yield (%) 5 Year Average Yield (T/Ha) 90.00 Yield (T/Ha) 80.00 % Potential Yield 3.50 Linear (% Potential Yield) 70.00 60.00 WUE annual increase 2% 3.00 50.00 2002-06 2003-07 2004-08 2005-09 2006-10 5 Year Period
  15. 15. My Farming System in 2011
  16. 16. No-Till
  17. 17. Sowing Equipment-JD 8200 Tractor (200hp)-CASE PTX – 600 32’Barr, 9” Alternate spacing-Horwood Bagshaw 3*2000L quad box, electric drives-Auto CutOff.
  18. 18. Controlled Traffic
  19. 19. Sowing equipment 1/4 width of Sprayer 9.8m sowing equipment 2.2M Spacing39.2m Sprayer
  20. 20. Compaction• When using • Most of therandom compactiontraffic in a damage is donefield, at least in the first pass.50 % of thefield is drivenover.
  21. 21. Precision AgricultureMainly VR Nutrients, Seed, and Weed Management.
  22. 22. Autosteer - RTK 2cm Guidance
  23. 23. Inner Row Sowing
  24. 24. Spray Equipment-Millar Nitro 3275-4wd, High Clearance-39 M Boom-RTK 2cm Autosteer and Autosection Cutoff-Ideal for Controlled Traffic
  25. 25. Header-Case 7120-30ft Honey Bee Draper Front-Chopper-15T Chaser Bin-AFS Yield Monitor
  26. 26. Yield Monitor
  27. 27. Durum Wheat• Last year Faba Beans• No Nitrogen applied till flag leaf emergence, mainly for protein.• Deep N test at sowing of 0-60 165N/Ha
  28. 28. Durum Wheat
  29. 29. Thanks

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