This is just a theory but I have one idea. Changing your bulb type definitely shifted you toward the red spectrum. Red increases yield and THC but red light also knock down terpene production.
First a bit about how I learned about this:
When I signed up for the NM medical program most of the bud I got made me nervous, confused but not high, at least not how I thought of it from years of smoking. I bought a volcano and started playing around with the temp to see when I felt high. Turn out the high I expect is a combination of THC and linalool a terp that melts right at around 390. Volcano on 380 I can vape bag after bag, after 1 or two bags at 390 im done.
Now that I know what chemical blend I'm after I have been researching terp increases. One of the ways to increase terp production is to cut red light in the last 2 weeks of flower.
I bet you used to grow terp heavy by using relatively high blue light levels for flower. Switching to HPS up THC and yield but then you terp level drop proportionally. Basically you have less terps b/c you have less blue light and those terp are spread across a larger yield. Using the volcano digital really helped me understand THC alone is some lame shit.
Now I am trying to grow terp heavy with high yeild using HPS and LED combo by adding Azomite, fungi, molasses and Im going to swap 1/2 the LED back to 6K from 2.7K for the last two weeks of flower.
First a bit about how I learned about this:
When I signed up for the NM medical program most of the bud I got made me nervous, confused but not high, at least not how I thought of it from years of smoking. I bought a volcano and started playing around with the temp to see when I felt high. Turn out the high I expect is a combination of THC and linalool a terp that melts right at around 390. Volcano on 380 I can vape bag after bag, after 1 or two bags at 390 im done.
Now that I know what chemical blend I'm after I have been researching terp increases. One of the ways to increase terp production is to cut red light in the last 2 weeks of flower.
I bet you used to grow terp heavy by using relatively high blue light levels for flower. Switching to HPS up THC and yield but then you terp level drop proportionally. Basically you have less terps b/c you have less blue light and those terp are spread across a larger yield. Using the volcano digital really helped me understand THC alone is some lame shit.
Now I am trying to grow terp heavy with high yeild using HPS and LED combo by adding Azomite, fungi, molasses and Im going to swap 1/2 the LED back to 6K from 2.7K for the last two weeks of flower.