Software For Estimating Fertilizer, Effluent Leaches From Farmland Is Flawed

In a report in this evening’s TV1 news, NZ farmers have been using a piece of software to help them estimate their environmental groundwater impact that, according to some reports, is giving wildly inaccurate results <https://1news.co.nz/one-news/new-zealand/software-estimating-much-fertiliser-effluent-leaches-farmland-flawed>. The minister is looking into whether it can be fixed, or whether it needs to be replaced. Given its taxpayer funding (at least in part), why isn’t it open-sourced? Stick it on GitHub, and watch the hordes of would-be fixers descend. ;)

Is that Overseer? If so, that's originally from the 90s... https://i.stuff.co.nz/business/farming/advice/9621180/Overseer-nutrient-soft... Cheers, Peter On August 12, 2021 8:23:07 PM GMT+12:00, Lawrence D'Oliveiro <ldo(a)geek-central.gen.nz> wrote:
In a report in this evening’s TV1 news, NZ farmers have been using a piece of software to help them estimate their environmental groundwater impact that, according to some reports, is giving wildly inaccurate results <https://1news.co.nz/one-news/new-zealand/software-estimating-much-fertiliser-effluent-leaches-farmland-flawed>. The minister is looking into whether it can be fixed, or whether it needs to be replaced.
Given its taxpayer funding (at least in part), why isn’t it open-sourced? Stick it on GitHub, and watch the hordes of would-be fixers descend. ;) _______________________________________________ wlug mailing list -- wlug(a)list.waikato.ac.nz | To unsubscribe send an email to wlug-leave(a)list.waikato.ac.nz Unsubscribe: https://list.waikato.ac.nz/postorius/lists/wlug.list.waikato.ac.nz
-- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 858-5174 (office) +64 (7) 577-5304 (home office) http://www.cms.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/.

On Thu, 12 Aug 2021 21:50:44 +1200, Peter Reutemann wrote:
On August 12, 2021 8:23:07 PM GMT+12:00, Lawrence D'Oliveiro <ldo(a)geek-central.gen.nz> wrote:
In a report in this evening’s TV1 news, NZ farmers have been using a piece of software to help them estimate their environmental groundwater impact that, according to some reports, is giving wildly inaccurate results <https://1news.co.nz/one-news/new-zealand/software-estimating-much-fertiliser-effluent-leaches-farmland-flawed>
Is that Overseer? If so, that's originally from the 90s...
https://i.stuff.co.nz/business/farming/advice/9621180/Overseer-nutrient-soft...
That's the name, all right. According to that report I linked, the complaints about its (in)accuracy go back maybe as far as 10 years. So perhaps the problems are specific to the newer functionality. For example, that article keeps describing it as a “nutrient budgeting” tool (presumably to keep expenses under control), whereas last night’s report was concentrating on effluent leaching, i.e. environmental impacts.

On Thu, 12 Aug 2021 20:23:07 +1200, I wrote:
... NZ farmers have been using a piece of software to help them estimate their environmental groundwater impact that, according to some reports, is giving wildly inaccurate results ...
Just found this report <https://www.stuff.co.nz/environment/climate-news/125907504/major-tool-for-managing-farm-pollution-gets-a-fail-from-reviewers> (linked from this <https://www.stuff.co.nz/environment/climate-news/126133351/why-the-overseer-farm-model-is-faulty> opinion piece) on an independent review of the Overseer software. Seems it has gradually been co-opted into becoming a compulsory regulatory tool, a role well outside its original design parameters. A review of it was done way back in 2018, led by Parliamentary Commissioner Simon Upton, which already raised some serious questions: Because Overseer is a commercial enterprise, its source code was kept secret, making it something of a “black box” and difficult for outside scientists to peer-review. And yet at the same time, some savvy farmers could figure out how to fiddle the results in their favour. The code is jointly owned by a couple of fertilizer companies, along with MPI and AgResearch. Upton’s review “questioned whether the Government should buy the remaining share of the tool from the fertiliser companies and make it open-source”. That would certainly go a long way towards improving the transparency issue.
participants (2)
-
Lawrence D'Oliveiro
-
Peter Reutemann