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I have a technical question about thermal management with mid-power LED diodes like Samsung LM301H. Do you use thermal vias on the PC board anymore? Either under the LED diode footprint or even around the footprint? I was reading about this on a ten year old application note from Cree called...

How do we measure when evaluating Mycorrhizae concentrations? I'm confused. Do we consider just propagules per gram? Or does the percent inert ingredients need to be accounted for? Here are some sample labels. Dynomyco: 5% microorganism but 900 propagules/g Myco Bliss: 2%? And 1000...

Enter contest for YoCan vapes here!! https://wn.nr/JmR4PWw

https://ag.colorado.gov/plants/pesticides/pesticide-use-in-cannabis-production-information Are you using something safe to smoke? Great list. Very interesting. Both pdf file and excel sheet. 50 pages.\

Was looking to purchase wollanstonite and came across this great eBay store. "cggdist-0" CGG distributing "Soil Regeneration Specialists - Growing Life Together" https://www.ebay.com/usr/cggdist-0 You can bulk order so much stuff here.

https://www.youtube.com/watch?v=VvBTsl_gScw Best Grow Lighting for Cannabis with Dr Bruce Bugbee | Far red ePAR A complete guide to the best grow light spectrum and PAR intensity for cannabis with scientist Dr Bruce Bugbee, Founder of Apogee Instruments and professor at Utah state university...

Grow lighting Masterclass with Dr Bruce Bugbee - Grow Light Spectrum Discussion The following are excerpts from an interview of Dr. Bruce Bugbee. This is pretty old now but still interesting. The economic rational for LEDs has strengthened, making them more appealing for getting some 'green'...

These studies from the past two years recommend very high light intensities. 900 in veg and up to 1800 in flower. Study extracts follow: Cannabis Yield, Potency, and Leaf Photosynthesis Respond Differently to Increasing Light Levels in an Indoor Environment 2021 Victoria Rodriguez-Morrison...

Medical Cannabis recommended N, P, K levels from Volcani Center research: N veg: Response of Medical Cannabis to Nitrogen Supply Under Long Photoperiod (2020) P veg: Response of medical cannabis genotypes to P supply under long photoperiod: Functional phenotyping and the ionome (2021) K veg...

NPK in vegetative, growth stage: 160/30/175 mg L NPK in flowering stage: 160/60/60 mg L Here's a roundup of recent research done expressly on medical THC cannabis. Wondering how to interpret the recommendations? For instance, is a NPK of 160/30/175 mg L equal to 10/2/12? Does 160/60/60 equal...