I just completed my first grow. Trim is done and cure in underway. I’m trying to go back and understand what factors contributed to my final yield.
I grew (2) plants in a 2x4 tent w/ (1) 600w LED. Final yield was 128.8 gr (4.6 oz). Being my first grow and was only ball parking what my final yells would be. My yield was a lot lower than I expected. I was expecting closer to 10 oz.
Maybe this outcome is normal for what I have but I want to fully understand why. Im thinking a part of it could be my light “efficiency “ but not sure how to calculate (umol/joule). I bought the light back in 2017 and know that a lot of advancements have been made since. My goal is to figure out if I should get a new grow light. I want to get closer to 1 gr/watt.
I attached my grow light specs and parameters in hopes to have someone take a look at it to better understand if my light efficacy is garbage and need to get a better one.
In Chris’ newEr “garden talk” episode from June they say any efficacy below 2.0 umm/joule. How can I calculate this with the attached informatio?
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Well PAR is really more important than grow light efficiency when talking about yield. Honestly there are soooo many reasons for why your yield may be lower than expected. What were your CO2 levels? Did you have VPD dialed in? How much PAR was hitting your plants? You don't have to answer those questions here; I just said them to give you examples of what to look at. It would be too long for me to type out all the reasons, but I did do a video with Cannabis Lifestyle TV awhile back with some good things that you can do to increase yield. Watch it here: