Controlled Traffic Farming<br />CTF is a sustainable farming system based on<br />可持续农业系统<br />Permanent wheel tracks<br /...
each zone is managed independently and precisely</li></ul>Jack McHugh<br />Contributions from Dr Jack Desbiolles (Ashworth...
What is a sustainable farming system?<br />Optimum resource management<br />Maximum productivity<br />Positive economics<b...
How does CTF facilitate Zero till?<br />Wheel traffic  zones<br />Drain and dispose of excess water<br />Maximum traction ...
It is important to view CTF not only as an input technology but also as a system component to be optimised in a farming sy...
CTF system benefits<br />Improved timeliness (chemicals when wet)<br />Improved spray window (night applications)<br />Red...
CTF agronomic benefits<br />Wheel slip – shear – adding to compaction from mass of machines<br />Rearranging soil particle...
% of rainfall infiltrated<br />Rain<br />Low Infiltration and high amounts of runoff ( lost moisture)<br />Wheel tracks in...
Wheeling Effect on Plant Available Water	       McHugh<br />(Total inTop 300mm)<br />Plant Available<br />Water (mm)<br />...
Wheeling and Tillage Effects on Soil Health  (Pangadorm)<br />Earthworms in top 15cm/m2<br />Tillage and Wheeling Both Dam...
Conservation cropping approach<br />Field soil conditions are a direct reflection of farming system philosophy<br />& Effe...
Introduce herbicides to replace tillage<br />
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Controlled traffic farming

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Controlled traffic farming

  1. 1. Controlled Traffic Farming<br />CTF is a sustainable farming system based on<br />可持续农业系统<br />Permanent wheel tracks<br />Zonal management<br /><ul><li>defined zones for wheels and crops
  2. 2. each zone is managed independently and precisely</li></ul>Jack McHugh<br />Contributions from Dr Jack Desbiolles (Ashworth et al., 2010) and Baker et al., (2007), Don Yule & Jeff Tullberg<br />
  3. 3. What is a sustainable farming system?<br />Optimum resource management<br />Maximum productivity<br />Positive economics<br />Minimum environmental impact<br />Positive social impacts<br />Zero-Till conservation cropping systems <br />CTF – synergising technology<br />Captures gains from CA elements<br />CTF facilitates Zero till<br />
  4. 4. How does CTF facilitate Zero till?<br />Wheel traffic zones<br />Drain and dispose of excess water<br />Maximum traction and trafficability<br />Crop zones<br />Optimise production<br />Reduces energy use<br />Reduce soil variability and limitations<br />Resolves the conflict between plants and machinery<br />Plants grow better in non compacted soil and wheels operate more effectively on firm soil<br />Synergistic with disc seeders<br />Penetration and draft<br />
  5. 5. It is important to view CTF not only as an input technology but also as a system component to be optimised in a farming system<br />Common track width & minimum tyre widths<br />Modular working widths<br />Guidance<br />layout<br />Ground area trafficked<br />Traditional tillage – 100%<br />Reduced tillage – 55-60%<br />Zero tillage – 30%<br />CTF ZT – 12%<br />
  6. 6. CTF system benefits<br />Improved timeliness (chemicals when wet)<br />Improved spray window (night applications)<br />Reduced chemical costs - accuracy, losses, variability, crop damage<br />Improved efficiencies from reduced overlap and corners<br />Increased WUE – increased infiltration – increased yields (dry years)<br />Improved sowing quality (placement, depth, emergence, uniformity<br />Reduced draft<br />Reduced rolling resistance – efficient use of smaller tractors<br />Reduced cost of fuels and other inputs<br />Driver fatigue<br />
  7. 7. CTF agronomic benefits<br />Wheel slip – shear – adding to compaction from mass of machines<br />Rearranging soil particles – broadly effecting of soil physical process, variability and constraints<br />The productivity of non wheeled soils increases as natural amelioration extends through the soil profile over time<br />
  8. 8. % of rainfall infiltrated<br />Rain<br />Low Infiltration and high amounts of runoff ( lost moisture)<br />Wheel tracks in CTF aiding the safe disposal of runoff & maximising infiltration<br />Controlled Traffic Farming<br />Traditional Farming<br />Wheeled, Tilled<br />Wheeled, Zero-Till<br />Rainfall and Runoff (mm)<br />Non-Wheeled, Tilled<br />Non-Wheeled, Zero Till<br />Run off (mm)<br />Compacted Area of Trial Site. <br />Controlled Traffic Area<br />Rainfall Time (h)<br />
  9. 9. Wheeling Effect on Plant Available Water McHugh<br />(Total inTop 300mm)<br />Plant Available<br />Water (mm)<br />Increased Crop Performance when Water-Limited<br />
  10. 10. Wheeling and Tillage Effects on Soil Health (Pangadorm)<br />Earthworms in top 15cm/m2<br />Tillage and Wheeling Both Damage Earthworms !<br />
  11. 11. Conservation cropping approach<br />Field soil conditions are a direct reflection of farming system philosophy<br />& Effect opener operation & performance<br />enhance soil quality = Yield and profitably <br />& Sustainability and climate change adaptability <br />Disc seeding systems – integral and fundamental for CA (residue, wue, disturbance)…………but tines are ok until soil improves.<br />Active management of compaction (CTF) for superior disc performance, soil structure, OM and improved rotations.<br />Transition process from CT – CA an evolving chain of steps<br />Residue retention, reduced tillage & herbicides – an integrated cropping system approach - agronomy, management, technology & performance assessment<br />Disc seeding & CTF are fine tuning =high quality CA & all benefits realised<br />
  12. 12. Introduce herbicides to replace tillage<br />
  13. 13. This is what happens if we don’t change agricultural practices – Liangzhou County near Wuwei City, Gansu PRC. It could happen here!!!! <br />

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