Live data from Hacker News

Open Soil Spectral Library

soilspectroscopy.github.io

11–17 of 17 posts

Re: Open Soil Spectral Library

#12
post #8

Anybody have a good resource for building hardware for this sort of thing on a hacker budget? I’d love to build a Tricorder for my garden.

If you want to get some serious machine I would look for NirScan Nano. It is not cheap (~1,5k) but the performance is solid. Another possible route is getting mems based spectrometry sensor from Hamamatsu (~600) but building well performing acquisition board is not that simple and evaluation board is quite expensive.

Re: Open Soil Spectral Library

#13
post #5
post #3

https://www.thermofisher.com/blog/mining/can-you-name-all-17... Some of the elements that fisher might use like gypsum, not sure if any of it is safe either though. Soil needs more research, is what most people think but growing things is getting harder not sure if the opensoil project can cover enough of the problems yet. A more safer alternative might be using transition metals and post transition metals in plant s…

Soil needs microbiology, gas exchange and hydrology this is what makes elements available. Nothing needs to be added and all the elements are plentiful. We killed the microbiology, the research is already done. Keep many kinds of plants in the soil year round, stop adding chems, this increases yield 3x and water retention enough to reduce irrigation demand up to 70%. Strange thing is, this is free and removes a bunch…

Hi Tim, can you provide some resources + links?

Re: Open Soil Spectral Library

#14
post #5
post #3

https://www.thermofisher.com/blog/mining/can-you-name-all-17... Some of the elements that fisher might use like gypsum, not sure if any of it is safe either though. Soil needs more research, is what most people think but growing things is getting harder not sure if the opensoil project can cover enough of the problems yet. A more safer alternative might be using transition metals and post transition metals in plant s…

Soil needs microbiology, gas exchange and hydrology this is what makes elements available. Nothing needs to be added and all the elements are plentiful. We killed the microbiology, the research is already done. Keep many kinds of plants in the soil year round, stop adding chems, this increases yield 3x and water retention enough to reduce irrigation demand up to 70%. Strange thing is, this is free and removes a bunch…

> We killed the microbiology, the research is already done. Keep many kinds of plants in the soil year round, stop adding chems, this increases yield 3x and water retention enough to reduce irrigation demand up to 70%.

Permaculture, no-till, ... Not sure there are definitive research conclusions on this, especially "3x yield".

IME, the conclusions are not as straight cut, nor as general and imply profound changes, such as mixing crops, cultivating more land, reducing yield, never leaving the soil exposed. Many things that have to be done together, with local optimizations, to get significant improvement.

Just like "electric cars" don't directly solve the "many privately owned petrol cars" problem. A solution being the "electric car tech" + another ownership / sharing model + urbanism changes.

Re: Open Soil Spectral Library

#15
post #5

Earlier quoted context omitted.

Soil needs microbiology, gas exchange and hydrology this is what makes elements available. Nothing needs to be added and all the elements are plentiful. We killed the microbiology, the research is already done. Keep many kinds of plants in the soil year round, stop adding chems, this increases yield 3x and water retention enough to reduce irrigation demand up to 70%. Strange thing is, this is free and removes a bunch…

> We killed the microbiology, the research is already done. Keep many kinds of plants in the soil year round, stop adding chems, this increases yield 3x and water retention enough to reduce irrigation demand up to 70%. Permaculture, no-till, ... Not sure there are definitive research conclusions on this, especially "3x yield". IME, the conclusions are not as straight cut, nor as general and imply profound changes, su…

Have you gone out and done some experiments for yourself? or is this from reading about it?

Re: Open Soil Spectral Library

#16
post #4

From the docs, Database: read only details on this page https://soilspectroscopy.github.io/ossl-manual/index.html#os... 1.4 OSSL mongoDB MongoDB is an Open Source noSQL DB hence fast and fully scalable and extendable (affordable costs for cloud solutions such as MongoDB Atlas and similar). TensorFlow and other cutting-edge ML algorithms can be easily integrated and served through a GUI. To access OSSL DB best use the…

> MongoDB is an Open Source noSQL DB hence fast and fully scalable and extendable 'hence'? Does not follow. Sure, this particular implementation may be considered fast and scalable. The wording seems to indicate it is 'fast' and 'scalable' just because it is NoSQL.

This is from the docs, not me. I was providing the details to quickly get others connected. I could have made that more clear.

Re: Open Soil Spectral Library

#17
post #5

Earlier quoted context omitted.

Soil needs microbiology, gas exchange and hydrology this is what makes elements available. Nothing needs to be added and all the elements are plentiful. We killed the microbiology, the research is already done. Keep many kinds of plants in the soil year round, stop adding chems, this increases yield 3x and water retention enough to reduce irrigation demand up to 70%. Strange thing is, this is free and removes a bunch…

> We killed the microbiology, the research is already done. Keep many kinds of plants in the soil year round, stop adding chems, this increases yield 3x and water retention enough to reduce irrigation demand up to 70%. Permaculture, no-till, ... Not sure there are definitive research conclusions on this, especially "3x yield". IME, the conclusions are not as straight cut, nor as general and imply profound changes, su…

"Applications to a sandy soil of the partially purified surface-active compounds improved soil water retention up to 314.3% compared to untreated soil. Similarly, after 36 h of incubation, the humidity uptake rate of treated sandy soil was up to 607.7% higher than untreated controls." ... "Overall, results revealed that polyextremotolerant bioemulsifiers of bacteria from arid and desert soils represent potential sources to develop new natural soil-wetting agents for improving water retention in arid soils." https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5984429/
Post reply on HN