Adding urease inhibitors to Overseer
This discussion thread has been created to discuss the attached plan for adding urease inhibitors to Overseer.
We have invited experts or companies known to be involved in the supply of urease inhibitors, or have undertaken research or have expertise in the use of urease inhibitors (the group). Please advise of additional people who should be part of this group.
We are asking that you review this plan and add any comments to this discussion, particularly any that relate to errors or additional information that would materially change the implementation. Others in the group can see these comments and additional responses added so that a consensus is arrived before voting on the plan.
If you are not an invited reviewer but have comments that may materially affect the implementation plan, please leave a comment.
Once you are ready to vote please review the proposal on the right of this discussion and vote accordingly.
Joel Gibbs Mon 5 Nov 2018 1:45AM
Looking through the paragraph that Alister commented on (the second in the document, starting with "The effect of urease inhibitors in..." ):
1: FracGASFnFert(UI) should be 0.055 rather than 0.55.
2. We probably shouldn't refer to FracGASFnFert(UI) and FracGASFnFert(non-UI) as emission factors, as these only calculate the fraction of fertiliser N that volatilises as NH3 or NOx. The N volatilised in these gasses is later multiplied by EF4 (which is the ef for N2O emissions from volatilised N, which is 0.01) to calculate N2O emissions.
Equations one and two in the document are still consistent with the inventory approach.
Caroline Read Fri 9 Nov 2018 9:40PM
Again - thank you all for your input into the development and confirmation of the methodology to implement urease inhibitors in Overseer.
David has revised the document to capture the corrections and amendments identified (attached). This has now been provided to the Dev team and they will work with the science team to implement and test this in Overseer. We will keep you posted on progress.
Caroline Read · Sun 4 Nov 2018 8:09PM
Hi Everyone - thank you so much for your input and comments and for those of you who clicked on the green Agree decision button. We have been able to capture a couple of updates/checks through this process and will post the updated implementation methodology document shortly. Given we didn't have any disagree votes we will now progress with implementing this solution. Thank you and please let me know how you found this process as we look for ways to enable involvement in the modelling.