before we deal with the small degree ones, we want to get a handle on the
Fair enough. Can you name the first few top candidates on that list of
Light: photoperiod and spectrum
For some good background, see the Cornell Lettuce Handbook
The basics are the same for all plants, though the details are species
specific. Vegitative growth is simple compared to dealing with flowering.
There is a lot of research on this with cannabis.
As for NPK, if you know your fertilizer, you know what is going in and
don’t need to constantly monitor the current nutrient state
Agree, I’m facing a situation where my main target in the long run is to
help Organic Agriculture, probably where the adjustments would consist of
applying (for example) Compost contains high values of N over another
Compost which has high value of K. In that situation, I can’t actually tell
how much went in, or at least not in a very precise manner, that is why I
would need those NPK measurements…a
With a lot of organics, the issue is you don’t know the chemistry of the
fertilizer You may want to consider a garden soil chemistry kit to check
the compost. I know of some commercial soil testing companies that will do
it for about $15/sample, but a simple kit from a garden center will get you
in the ball park to start.
some environmental measurements will need to be manually entered
That is an interesting idea, I haven’t thought of “half-automated” control
system. I see the merit of it (and some complications as well).
Can you name few of the measurements that are assumed to be manually
entered (beside pH)?
Most of the chemistry (NKP) would be manual at this time. The issue is
cost, it is cheaper to do a lot of this manually than the cost of the
sensors (and issues with calibration). All most all of the phenotypic data
is manual, though we are looking at trying to get plant size from images
(see the Danforth Center’s PlantCV
https://github.com/danforthcenter/plantcv for some good work).
MVP Cloud UI:
I get the gist of how you envision that application. Did anyone started
working on it already? If yes, I’d love to join in. If not, I’d be happy to
setup some prototype to iterate on.
Thanks for tagging @Webb.Peter
https://forum.openag.media.mit.edu/u/webb.peter, I’ll drop him a note
to see what his take on that cloud app.
I would suggest you contact Peter, and see if he will get you into the
development forum where you can contact the developers. Right now we are
exploring different libraries and packages (Polymer, ThingBoard, Blynk, …)
In addition, I had a short correspondence with Rob Baynes from openAG and
he said that they have a cloud solution and open phoneme database, but both
are still being built and are not public yet. According to him they will be
released to the community later this year.
Do you know anything about it? Structure/specifications/models/ETA for
I have talked with Rob at various times in the past, but find that he is so
overwhelmed with tasks that he hasn’t had much time to share or collaborate
on the work.