This is a testing site only. See the live Public Lab site here »


irrigation
irrigation


Author Comment Last activity Moderation
Erika19 "Well, I prefer Hemp Bombs gummies CBD because they are simple to consume. Nevertheless, there are various ways to consume CBD products. I like bea..." | Read more » almost 2 years ago
Shayari-wala "superb " | Read more » about 2 years ago
yhanthy "its helful for citizen there www.yhanthydech.com " | Read more » about 2 years ago
Dokronstone "Ranging from 35 HP to 90 HP, the company has its manufacturing plant in Punjab that produces low-cost ad quality tractors. Similarly, the Combine h..." | Read more » about 2 years ago
PabloKonty "Good job :) " | Read more » about 2 years ago
roberts_ecofarm " There are lots of interesting things you can do, but you will need come collection surface. Would like to know the kinds of plants and their growi..." | Read more » over 3 years ago
liz " Hi @birdlink, let us know some additional information. Just noticed that your post title mentions dew collection systems, and to my limited knowle..." | Read more » over 3 years ago
liz " hi! What a great project! I happen to live in the Williamsburg, Brooklyn neighborhood too and am so excited to hear about this. Will this sculptur..." | Read more » over 3 years ago
pswigert "Hi! I really enjoyed this thread and seeing everyone's thoughts and responses to the question. @WhiteRabbit , I was wondering if you have any updat..." | Read more » over 7 years ago
WhiteRabbit "I found this: http://www.vernier.com/products/sensors/col-bta/ which is interesting because unlike other low-cost spectrometers/colorimeters its s..." | Read more » almost 8 years ago
warren "Wow chris the barcode scanner filter idea is great!!! " | Read more » almost 8 years ago
cfastie "The Public Lab desktop spectrometer is quite capable of making a spectral graph of sunlight reflected from grass. The curve will differ from the pr..." | Read more » almost 8 years ago
WhiteRabbit "Here's a write-up that I'm finding quite helpful: http://publiclab.org/notes/nedhorning/11-01-2013/why-a-red-filter-should-work-well-for-ndvi Eyeb..." | Read more » almost 8 years ago
WhiteRabbit "Sounds like gel filters would be tricky at best, so I guess ixnay to that. How about this one? http://www.ebay.com/itm/Optical-Interference-Filter..." | Read more » almost 8 years ago
cfastie "I have not seen a cheap filter like Rosco that is truly a narrow band pass filter. It might be possible to combine filters to get a fairly narrow t..." | Read more » almost 8 years ago
WhiteRabbit "Cool! Awesome post. I suppose it's wishful (and probably foolish) thinking, but given the the low price of a filter swatch book and the seemingly..." | Read more » almost 8 years ago
cfastie "A filter switcher is a viable solution, especially for small cameras. Cameras as large as Powershots might require a big, precise device in front o..." | Read more » almost 8 years ago
WhiteRabbit "Thanks, Chris, for your thoughtful and very informative post. If I'm reading it right, perhaps using two monochrome cameras, each with the appropr..." | Read more » almost 8 years ago
cfastie "It should be possible to distinguish between stressed and non-stressed lawn grass using NDVI. I suspect that the $900 FieldScout performs more or l..." | Read more » almost 8 years ago
WhiteRabbit "Interestingly enough, I did just now find this $889 turf grass color meter which does, indeed, use NDVI! http://www.specmeters.com/nutrient-manage..." | Read more » almost 8 years ago
WhiteRabbit "Thanks for the links. Supposedly grass also changes color as the soil loses moisture (IIRC, it becomes less green and more blueish?), and people c..." | Read more » almost 8 years ago
warren "I think a lot of the challenge of using an Infragram camera well is the need for comparison. Comparing an area treated in one way with a "control" ..." | Read more » almost 8 years ago