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SESSION OUTLINE
• Brief Overview of Karoonda Site Results
• Key Principals of Spading Success
• Lowbank Trial Results and ...
KAROONDA SITE ABOVE SEEP AREA
Non wetting sand over clay
Control
Spaded
Non wetting sand over clay
Spaded with
Chicken Manure
YIELD RESULTS
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
Unmodified
Spaded
CM 6 t/ha spaded
CM 9 t/ha spaded
Yield t/ha
Modification: Unmodified Spaded CM 6t/ha
Spaded
CM 9 t/ha
Spaded
Average grain yield (t/ha) 1.55 2.17 3.29 2.8
Income @ $2...
WEED DIFFERENCES…?
Spaded Control
WHY SPADING WITH CHICKEN MANURE WORKS
Breaking Deep Compaction
WHY SPADING WITH CHICKEN MANURE WORKS
Significant increase to nutrition and organics
(photo from Nigel Wilhelm, SARDI)
Zin...
LOWBANK SPADING TRIAL RESULTS
ACKNOWLEDGEMENTS
Karoonda
and
Lowbank
Agricultural
Bureaus
Spading trials to improve mallee sands - Chris McDonough (IEA)
Spading trials to improve mallee sands - Chris McDonough (IEA)
Spading trials to improve mallee sands - Chris McDonough (IEA)
Spading trials to improve mallee sands - Chris McDonough (IEA)
Spading trials to improve mallee sands - Chris McDonough (IEA)
Spading trials to improve mallee sands - Chris McDonough (IEA)
Spading trials to improve mallee sands - Chris McDonough (IEA)
Spading trials to improve mallee sands - Chris McDonough (IEA)
Spading trials to improve mallee sands - Chris McDonough (IEA)
Spading trials to improve mallee sands - Chris McDonough (IEA)
Spading trials to improve mallee sands - Chris McDonough (IEA)
Spading trials to improve mallee sands - Chris McDonough (IEA)
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Spading trials to improve mallee sands - Chris McDonough (IEA)

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SESSION OUTLINE
• Brief Overview of Karoonda Site Results
• Key Principals of Spading Success
• Lowbank Trial Results and Discussion

Published in: Science
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Spading trials to improve mallee sands - Chris McDonough (IEA)

  1. 1. SESSION OUTLINE • Brief Overview of Karoonda Site Results • Key Principals of Spading Success • Lowbank Trial Results and Discussion
  2. 2. KAROONDA SITE ABOVE SEEP AREA
  3. 3. Non wetting sand over clay Control Spaded
  4. 4. Non wetting sand over clay Spaded with Chicken Manure
  5. 5. YIELD RESULTS
  6. 6. 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Unmodified Spaded CM 6 t/ha spaded CM 9 t/ha spaded Yield t/ha
  7. 7. Modification: Unmodified Spaded CM 6t/ha Spaded CM 9 t/ha Spaded Average grain yield (t/ha) 1.55 2.17 3.29 2.8 Income @ $220/t $ 342 $ 478 $ 725 $ 616 Additional income $ - $ 136 $ 383 $ 274 Cost of modification $ - $ 100 $ 310 $ 415 Increase $ in first year $ - $ 36 $ 73 -$ 141
  8. 8. WEED DIFFERENCES…? Spaded Control
  9. 9. WHY SPADING WITH CHICKEN MANURE WORKS Breaking Deep Compaction
  10. 10. WHY SPADING WITH CHICKEN MANURE WORKS Significant increase to nutrition and organics (photo from Nigel Wilhelm, SARDI) Zinc Deficient Zinc Enriched
  11. 11. LOWBANK SPADING TRIAL RESULTS
  12. 12. ACKNOWLEDGEMENTS Karoonda and Lowbank Agricultural Bureaus

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