hydroponics
hydroponics


Author Comment Last activity Moderation
admin9o "Hello all and what a great guide! I have managed the hardware part fine but used a blue instead or red lens cover thanks to this tutorial but I’m ..." | Read more » about 1 year ago
jmh_desiderio "Good day, i would like to ask on how did you manage to measure the nutrient uptake of a plant. i am currently doing a thesis for the measurement of..." | Read more » about 3 years ago
vosshop2 "Seiko Prospex Mini Turtle SRPC39J1 Automatic Diver's 200M Men's Watch. Release new Seiko mini turte. " | Read more » over 3 years ago
theuntoldrecipe "Gud Ur Post Always Important all of us " | Read more » over 3 years ago
mp3download "Kylie Minogue comes through with yet another new song titled “Miss a Thing” and is right here for your fast download. https://walkingdeads6.online..." | Read more » over 3 years ago
warren "Very impressive - and yeah, what a great cheap camera... that filter switcher is amazing! " | Read more » over 3 years ago
amocorro "@DS501st What a great way to combine your interests! Thanks for documenting your process and sharing for the Public Lab community to replicate :hea..." | Read more » over 3 years ago
Aleksi12358 "Lamotte produces hydroponic test kit but it is over 300$ for 4 nutrients. Problem with test meant for soil is that they dont show results as ppm or..." | Read more » almost 6 years ago
Aleksi12358 "That is so good! I will order Public lab spectrometer or parts for it from somewhere and few photometer reagents so that I can do some tests so tha..." | Read more » almost 6 years ago
warren "Yes definitely the diy spectrometers on this site can have their range narrowly selected. See SpectralWorkbench.org for some examples! " | Read more » almost 6 years ago
Aleksi12358 "So it is possible to use spectrometer as colorimeter. Is it possible to choose to read narrow band of spectrum with Public lab spectrometer softwa..." | Read more » almost 6 years ago
Aleksi12358 "Thank you for links. I will contact person who designed that automatic water tester and ask few question about accuracy of readings and use of diff..." | Read more » almost 6 years ago
Aleksi12358 "Thank you for suggestion. I will look into it. " | Read more » almost 6 years ago
warren "Also Markos, from the spectrometry mailing list, chimed in with:grinning: Hi, I apologize for sending here a reply to the question proposed at: ..." | Read more » almost 6 years ago
Ag8n "The public lab instrument will cover a part of the NIR. Unless you can find very cheap used FTIR, the cost of the instrument will far exceed your ..." | Read more » almost 6 years ago
warren "And in case there are updates from others, let's see if @Frikkie or @winsorje have something to add? " | Read more » almost 6 years ago
warren "Maybe @fez who asked this would be interested too: https://publiclab.org/questions/fez/02-01-2017/diy-methods-for-nitrate-detection-in-food " | Read more » almost 6 years ago
warren "Hi, just for starters there are a couple interesting projects related to nitrate detection here: https://publiclab.org/tag/nitrate There's also t..." | Read more » almost 6 years ago
Ag8n "I have very little experience with soil testing. So the local extension agent was called. He suggested the lamotte NPK test kits. One that will ..." | Read more » almost 6 years ago
Aleksi12358 "Hello. I would like to measure every plant nutrient from macro to micro but I think macro nutrients(nitrogen, potassium, phosphorus, sulfur, calci..." | Read more » almost 6 years ago
warren "Hi, which nutrients are you hoping to measure? " | Read more » almost 6 years ago
stevie "Emailed in from Erin Haacker: "I poked around in that direction, and you might consider getting in touch with J. Raymond Kessler: http://hort.aubur..." | Read more » about 6 years ago
Deissymb "Hi ksmith0, Here's a link where you can see how to build vegetable home garden with an irrigation system included: https://www.youtube.com/watch?..." | Read more » about 6 years ago
ksmith0 "Outdoor space " | Read more » about 6 years ago