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Crop residue tradeoffs in crop-livestock systems:  Ideas for scenarios to be analyzed <ul><ul><li>Presentation by Mark T. ...
Aim of SLP project <ul><li>Optimizing livelihood and environmental </li></ul><ul><li>benefits from crop residues in smallh...
Crop residues Manure Feed Food Fertilisers Food + services Feed Market Food Livestock Grasslands Cropland Household
Crop residues have different functions <ul><li>Fodder for livestock    short term productivity livestock </li></ul><ul><l...
NUANCES-FARMSIM FIELD: dynamic, summary model of CROP and SOIL processes  LIVSIM: individual based dynamic, summary model ...
Aim of analyses could be <ul><li>Biophysical (productivity, soil fertility) consequences of different use of crop residues...
Degree of crop-livestock integration  Stocks, flows and assets System state II + + Management intensity + + System state I...
For different sites at different levels of crop-livestock integration: <ul><li>Indicators </li></ul><ul><li>soil C develop...
Main interest <ul><li>Comparison of sites!! </li></ul>
Crop residue tradeoffs in crop-livestock systems: Ideas for scenarios to be analyzed
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Crop residue tradeoffs in crop-livestock systems: Ideas for scenarios to be analyzed

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Presentation by Mark T. van Wijk for the SLP Crop Residues Project Review and Planning Meeting, Addis Ababa, Ethiopia, 9-10 December 2010.

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Crop residue tradeoffs in crop-livestock systems: Ideas for scenarios to be analyzed

  1. 1. Crop residue tradeoffs in crop-livestock systems: Ideas for scenarios to be analyzed <ul><ul><li>Presentation by Mark T. van Wijk for the SLP Crop Residues Project Review and Planning Meeting </li></ul></ul><ul><ul><li>Addis Ababa, Ethiopia, 9-10 Dec 2010 </li></ul></ul>Wageningen University, Plant Production Systems email: mark.vanwijk@wur.nl
  2. 2. Aim of SLP project <ul><li>Optimizing livelihood and environmental </li></ul><ul><li>benefits from crop residues in smallholder </li></ul><ul><li>crop-livestock systems in sub-Saharan </li></ul><ul><li>Africa and South Asia: regional case studies </li></ul>
  3. 3. Crop residues Manure Feed Food Fertilisers Food + services Feed Market Food Livestock Grasslands Cropland Household
  4. 4. Crop residues have different functions <ul><li>Fodder for livestock  short term productivity livestock </li></ul><ul><li>Input for soil  long term productivity crops </li></ul>
  5. 5. NUANCES-FARMSIM FIELD: dynamic, summary model of CROP and SOIL processes LIVSIM: individual based dynamic, summary model of livestock HEAPSIM: dynamic summary model of manure management and storage LABOURSIM and CASHSIM: summary models of socio-economic components and their interactions with production comp.
  6. 6. Aim of analyses could be <ul><li>Biophysical (productivity, soil fertility) consequences of different use of crop residues along intensification pathways </li></ul>
  7. 7. Degree of crop-livestock integration Stocks, flows and assets System state II + + Management intensity + + System state III System state I Household “Well-being” Stress Alleviation Tittonell, Van Wijk et al, 2009, Agricultural Systems
  8. 8. For different sites at different levels of crop-livestock integration: <ul><li>Indicators </li></ul><ul><li>soil C development </li></ul><ul><li>crop productivity and its variability </li></ul><ul><li>livestock productivity </li></ul><ul><li>Look at consequences of different use of crop residues (scenarios) </li></ul>
  9. 9. Main interest <ul><li>Comparison of sites!! </li></ul>

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