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The effect of tillage practice and residue management on wheat yield and yield stability in two agro-ecological environments in Mexico. Bram Govaerts
The effect of tillage practice and residue management on wheat yield and yield stability in two agro-ecological environments in Mexico. Bram Govaerts
The effect of tillage practice and residue management on wheat yield and yield stability in two agro-ecological environments in Mexico. Bram Govaerts
The effect of tillage practice and residue management on wheat yield and yield stability in two agro-ecological environments in Mexico. Bram Govaerts
The effect of tillage practice and residue management on wheat yield and yield stability in two agro-ecological environments in Mexico. Bram Govaerts
The effect of tillage practice and residue management on wheat yield and yield stability in two agro-ecological environments in Mexico. Bram Govaerts
The effect of tillage practice and residue management on wheat yield and yield stability in two agro-ecological environments in Mexico. Bram Govaerts
The effect of tillage practice and residue management on wheat yield and yield stability in two agro-ecological environments in Mexico. Bram Govaerts
The effect of tillage practice and residue management on wheat yield and yield stability in two agro-ecological environments in Mexico. Bram Govaerts
The effect of tillage practice and residue management on wheat yield and yield stability in two agro-ecological environments in Mexico. Bram Govaerts
The effect of tillage practice and residue management on wheat yield and yield stability in two agro-ecological environments in Mexico. Bram Govaerts
The effect of tillage practice and residue management on wheat yield and yield stability in two agro-ecological environments in Mexico. Bram Govaerts
The effect of tillage practice and residue management on wheat yield and yield stability in two agro-ecological environments in Mexico. Bram Govaerts
The effect of tillage practice and residue management on wheat yield and yield stability in two agro-ecological environments in Mexico. Bram Govaerts
The effect of tillage practice and residue management on wheat yield and yield stability in two agro-ecological environments in Mexico. Bram Govaerts
The effect of tillage practice and residue management on wheat yield and yield stability in two agro-ecological environments in Mexico. Bram Govaerts
The effect of tillage practice and residue management on wheat yield and yield stability in two agro-ecological environments in Mexico. Bram Govaerts
The effect of tillage practice and residue management on wheat yield and yield stability in two agro-ecological environments in Mexico. Bram Govaerts
The effect of tillage practice and residue management on wheat yield and yield stability in two agro-ecological environments in Mexico. Bram Govaerts
The effect of tillage practice and residue management on wheat yield and yield stability in two agro-ecological environments in Mexico. Bram Govaerts
The effect of tillage practice and residue management on wheat yield and yield stability in two agro-ecological environments in Mexico. Bram Govaerts
The effect of tillage practice and residue management on wheat yield and yield stability in two agro-ecological environments in Mexico. Bram Govaerts
The effect of tillage practice and residue management on wheat yield and yield stability in two agro-ecological environments in Mexico. Bram Govaerts
The effect of tillage practice and residue management on wheat yield and yield stability in two agro-ecological environments in Mexico. Bram Govaerts
The effect of tillage practice and residue management on wheat yield and yield stability in two agro-ecological environments in Mexico. Bram Govaerts
The effect of tillage practice and residue management on wheat yield and yield stability in two agro-ecological environments in Mexico. Bram Govaerts
The effect of tillage practice and residue management on wheat yield and yield stability in two agro-ecological environments in Mexico. Bram Govaerts
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The effect of tillage practice and residue management on wheat yield and yield stability in two agro-ecological environments in Mexico. Bram Govaerts

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A presentation from the WCCA 2011 event held in Brisbane, Australia.

A presentation from the WCCA 2011 event held in Brisbane, Australia.

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  • 1. The effect of tillage practice and residue management on wheat yield and yield stability in two agro- ecological environments in Mexico
  • 2. Two cropping systems Cd. Obregón (39 m): Irrigated wheat-based system El Batán (2249 m) Mexico Rainfed highland system City
  • 3. Strategic research ● Long-term and component technology trials ● Different environments Contrasts and similarities => process level Keeps thinking flexible Obregon => mimic environments ● Network of excellence ● Center of training => on farm trials
  • 4. El Batán: Characteristics● Non-equatorial semi-arid highlands (2240 masl)● Rain fed agriculture● Periodical drought● Periodical water excess● Wind and water erosion● Grain yield < 2 ton ha-1
  • 5. El Batán: Characteristics● Soil: Haplic Phaeozem (Clayic)
  • 6. El Batán: target environment
  • 7. Treatments● Zero tillage● Conventional tillage  after harvest  One pass with a chisel plough to 30 cm depth  Two passes with a disk harrow to 20 cm depth and two passes with a spring tooth harrow to 10 cm.  The spring tooth harrow was used when needed for weed control (typically twice) during the winter fallow season.  the seed bed preparation  One pass with a chisel plough to 30 cm depth  Two passes with a disk harrow to 20 cm depth and one pass with a spring tooth harrow to 10 cm
  • 8. Govaerts et al., 2005Govaerts et al., 2005
  • 9. Govaerts et al., 2005Govaerts et al., 2005
  • 10. Zero vs. Conventional ZT CTGovaerts et al., 2005 Govaerts et al., 2005
  • 11. Total monthly precipitation(mm) El Batán, México Average 2008 2009Month 1991-2007June 106 102 105July 116 102 39August 117 153 63
  • 12. Zero vs. Conventional ZT CT Govaerts et al., 2005
  • 13. El Batán: results 8 7 Grain yield (t/ha at 12% H2O) 6 5 4 3 2 1 0 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 Year ZT-Keep ZT-Remove CT-Keep CT-Remove ZT-KeepM1/3W ZT-Keep1/2CT: conventional tillage; ZT: zero tillage
  • 14. El Batán: resultsManagement Average yield Coefficient ofpractice (t ha-1 at 12% H2O) variation (%)CT-Keep 5.31 BC 22.3 BCT-Remove 5.04 C 23.2 BZT-Keep 5.96 A 19.0 BZT-Remove 3.92 D 35.8 AZT-Keep M1/3W 4.93 C 33.8 AZT-Keep1/2 5.59 AB 24.7 B CT: conventional tillage; ZT: zero tillage
  • 15. El Batán: results Management Slope Inter- R² practice cept CT-Keep 0.82 1.12 0.85 CT-Remove 0.88 0.52 0.86 ZT-Keep 0.82 1.77 0.80 ZT-Remove 1.06 -1.49 0.86 ZT-Keep M1/3W 1.33 -1.90 0.97 ZT-Keep1/2 1.09 -0.02 0.94 CT: conventional tillage; ZT: zero tillage
  • 16. Cd. Obregón: Characteristics● Arid coastal plains (39 masl)● Irrigated agriculture● Irrigation applied in furrows
  • 17. Cd. Obregón: Characteristics● Soil: Haplic Vertisol (Calcaric, Chromic) 15 cm 35 cm 80 cm 110 cm
  • 18. Cd. Obregon: target environment
  • 19. Treatments● Permanent beds● Conventional tillage  after harvest of each crop  disk harrow to 0.20 m depth (2–3 passes)  the seed bed preparation  Remaking the beds => weed control
  • 20. Cd. Obregón: results 8.0 Grain yield (t/ha at 12% H2O) 7.0 6.0 5.0 4.0 3.0 2.0 1.0 0.0 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 Year CTB-Keep PB-Burn PB-Remove PB-Partial PB-KeepCTB: conventionally tilled beds; PB: permanent beds
  • 21. Cd. Obregón: results Management Average yield Coefficient of practice (t ha-1 at 12% H2O) variation (%) CTB-Keep 7.01 BC 10.69 A PB-Burn 6.65 C 11.66 A PB-Remove 7.24 AB 9.53 A PB-Partial 6.91 BC 10.28 A PB-Keep 7.42 A 8.65 A CTB: conventionally tilled beds; PB: permanent beds
  • 22. Cd. Obregón: results 8.5Treatment yield (Mg/ha at 12% H2O) 8.0 Management Slope Inter- R² 7.5 practice cept 7.0 CTB-Keep 1.07 -0.52 0.95 PB-Burn 1.09 -0.98 0.91 6.5 PB-Remove 0.96 0.42 0.96 6.0 PB-Partial 1.00 -0.11 0.93 5.5 PB-Keep 0.85 1.44 0.91 5.0 CTB: conventionally tilled beds; PB: permanent 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 beds Year mean yield (Mg/ha at 12% H2O) CTB-Keep PB-Burn PB-Remove PB-Partial PB-Keep Linear (CTB-Keep) Linear (PB-Burn) Linear (PB-Remove) Linear (PB-Partial) Linear (PB-Keep)
  • 23. Conclusion● CA highest yielding in both environments● Differences in stability were only found in rain fed, more adverse conditions● Straw fully removed or burned combined with ZT is not sustainable● More research is needed to design optimal systems with partial residue retention
  • 24. http://conservacion.cimmyt.orgThank you for your attention

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