 comment 31988 posted by murphy on 2010-08-10 1:18 PM, 30 days ago | forward
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Response from Jeremy Whish and Publication below:
Hi Chris
Yes i still wish to proceed with this proposal but have not had the time to fully respond to the reference committee. I will do so soon, but in the meantime some further info on the model I have built.
Attached is a paper showing the real need for a millet model and why it was built in plant. I agree to build a complete millet model that can simulate more than plant growth and water use further work needs to be done. My application is that this module be kept in the developers section to be available for use by other scientists looking at millet cover cropping. Currently one PhD student is using the model and he is collecting more validation data sets to test the model.
In time it would be nice to have a fully functioning white french millet model but until funding is available or a student has a need this is not going to happen what we do have is a model that will grow vegetativly and use water at the same rate as plants observed in the field. phenology up to flowering is roughly correct but this is based on limited field data. The model can not be used to simulate grain yield which is why I am only requesting the model be placed in the developers area not the general release.
I hope this clears things up a bit Chris
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| file 31987 attached by murphy on 2010-08-10 1:18 PM, 30 days ago |
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| Paper; "Do spring cover crops rob water and so reduce wheat yields"  attachment: W09-1.pdf view save
size: 832160 content-type: application/pdf
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Subject: Adding a white French millet model for development (DO NOT EDIT THIS:1049)
Hi Jeremy
Just cahsing up this task. Are your going to proceed with this? Can you let me know.
Regards
Chris
>Subject: Adding a white French millet model for development (DO NOT EDIT THIS:1049)
>
>Hi Jeremy,
>In terms of your proposal for adding a White French Millet model for development the Reference Panel considered you proposal and their response was as follows:
>
>>Subject: Adding a white French millet model for development (DO NOT EDIT THIS:1049)<br><br><hr />
>Reference Panel recommendation: Suggest the real need is for a generic cover crop model that could be implemented in PLANT and parameterised to suit various crops such as pearl french millet. If there is a serious intention to build a millet module, then more detail on data collection and proposed model structure will be needed (e.g. more detail on early leaf area growth would contribute usefully to APSIM). If this approach is acceptable then resubmit.</p>
>
>Could you please econsider this recommendation and respond.
>
>If you still wish to proceed with a new module the following is the minimum information required about a Proposal for consideration by the Reference Panel:
>
>1. Short description of the concept or proposed improvements
>
>2. Rationale and Justification
>
>3. Details of the proposed improvements
>
>4. Implications for users
>
>5. Supporting documentation (optional)
>
>I am happy to discuss in more detail if you have any questions.
>
>Regards
>Chris
>
>Chris Murphy
>Principal Project Officer (APSIM)
>Agri-science Queensland
>Department of Employment, Economic Development & Innovation
>203 Tor Street, Toowoomba, Queensland 4350, Australia
>PO Box 102, Toowoomba, Queensland 4350, Australia
>t: +61 7 4688 1596
>f: +61 7 4688 1193
>e: apsim@dpi.qld.gov.au
>w: www.dpi.qld.gov.au
>
>The APSIM (Agricultural Production systems siMulator) Initiative is an unincorporated joint
>venture between the Commonwealth Scientific and Industrial Research Organisation,
>the State of Queensland and The University of Queensland.
>Website www.apsim.info
>
>
>
>
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Subject: Adding a white French millet model for development (DO NOT EDIT THIS:1049)
Hi Jeremy,
In terms of your proposal for adding a White French Millet model for development the Reference Panel considered you proposal and their response was as follows:
>Subject: Adding a white French millet model for development (DO NOT EDIT THIS:1049)<br><br><hr />
Reference Panel recommendation: Suggest the real need is for a generic cover crop model that could be implemented in PLANT and parameterised to suit various crops such as pearl french millet. If there is a serious intention to build a millet module, then more detail on data collection and proposed model structure will be needed (e.g. more detail on early leaf area growth would contribute usefully to APSIM). If this approach is acceptable then resubmit.</p>
Could you please econsider this recommendation and respond.
If you still wish to proceed with a new module the following is the minimum information required about a Proposal for consideration by the Reference Panel:
1. Short description of the concept or proposed improvements
2. Rationale and Justification
3. Details of the proposed improvements
4. Implications for users
5. Supporting documentation (optional)
I am happy to discuss in more detail if you have any questions.
Regards
Chris
Chris Murphy
Principal Project Officer (APSIM)
Agri-science Queensland
Department of Employment, Economic Development & Innovation
203 Tor Street, Toowoomba, Queensland 4350, Australia
PO Box 102, Toowoomba, Queensland 4350, Australia
t: +61 7 4688 1596
f: +61 7 4688 1193
e: apsim@dpi.qld.gov.au
w: www.dpi.qld.gov.au
The APSIM (Agricultural Production systems siMulator) Initiative is an unincorporated joint
venture between the Commonwealth Scientific and Industrial Research Organisation,
the State of Queensland and The University of Queensland.
Website www.apsim.info
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Subject: Adding a white French millet model for development (DO NOT EDIT THIS:1049)
Test 2
Subject: Adding a white French millet model for development (DO NOT EDIT THIS:1049)
Reference Panel recommendation: Suggest the real need is for a generic cover crop model that could be implemented in PLANT and parameterised to suit various crops such as pearl french millet. If there is a serious intention to build a millet module, then more detail on data collection and proposed model structure will be needed (e.g. more detail on early leaf area growth would contribute usefully to APSIM). If this approach is acceptable then resubmit.
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Subject: Adding a white French millet model for development (DO NOT EDIT THIS:1049)
Reference Panel recommendation: Suggest the real need is for a generic cover crop model that could be implemented in PLANT and parameterised to suit various crops such as pearl french millet. If there is a serious intention to build a millet module, then more detail on data collection and proposed model structure will be needed (e.g. more detail on early leaf area growth would contribute usefully to APSIM). If this approach is acceptable then resubmit.
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Subject: Adding a white French millet model for development (DO NOT EDIT THIS:1049)
Reference Panel recommendation: Suggest the real need is for a generic cover crop model that could be implemented in PLANT and parameterised to suit various crops such as pearl french millet. If there is a serious intention to build a millet module, then more detail on data collection and proposed model structure will be needed (e.g. more detail on early leaf area growth would contribute usefully to APSIM). If this approach is acceptable then resubmit.
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| comment 31214 posted by guest on 2009-11-30 12:17 PM, 283 days ago | forward
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| Reference Panel recommendation: Suggest the real need is for a generic cover crop model that could be implemented in PLANT and parameterised to suit various crops such as pearl french millet. If there is a serious intention to build a millet module, then more detail on data collection and proposed model structure will be needed (e.g. more detail on early leaf area growth would contribute usefully to APSIM). If this approach is acceptable then resubmit.
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| comment 31166 posted by guest on 2009-11-16 5:25 PM, 297 days ago | forward
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| To simulate white French Millet for use as a cover crop I developed a model based on Plant. This model is basically only a biomass model and was validated to reproduce the biomass production and water use observed in the field (Whish et al 2009) this work was done using APSIM 5.3 I have recently updated the model to make it suitable for APSIM 7.1. I have a PhD student who is working on cover cropping and would like to use the same millet module. He will help add to the validation data but the intention is to have this model only available in the development section.
I suggest that in time data will be collected for grain yield and then a complete validation of the model could be completed. I have some interest from a Chinese masters student to complete this validation over the next 2 years.
I would suggest Peter Carberry as a reviewer for this model.
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