Delps8
Well-Known Member
Heh, a hydro grow! Great!
There aren't a lot of hydro growers here so I thought I'd poke my nose in.
Great move adding Si and Hydroguard is your friend, as well. Two staples.
One thing that strikes me is that there's no discussion of light levels and I do see that the hang height is pretty high. That, in turn, tells me that you can get a lot more out of your grow by setting the light to the manufacturers recommended levels.
Once cannabis has a "sufficient" level of nutes, it will not grow any faster/better/taller my adding more nutes. Per the image below, once you exceed the sufficiency range, you start damaging your plants and it can be very hard to remedy the situation (much easier in hydro than SIP or soil, granted).
Light is the opposite. I have seen some growers damage their plants with too much light but it's very rare and it's, frankly, not easy to do.
Once a plant is established in the veg phase or later, cannabis will consume a huge amount of light and, in return, will generate a very significant harvest. Plants getting lotsa light are shorter and have more leaves, stems, and flowers ("infloresence") which generates a larger crop of higher quality.
Per the data below, the paper is cited, there's a measurable impact on yield of increasing light intensity. The results are significant (to me) - at by going from a PPFD of, say, 600 to 900, yield increased 5.2+4.9+4.7+4.5+4.3+4.1 ≈ 28%. Not a bad increase for turning up the dimmer.
There aren't a lot of hydro growers here so I thought I'd poke my nose in.
Great move adding Si and Hydroguard is your friend, as well. Two staples.
One thing that strikes me is that there's no discussion of light levels and I do see that the hang height is pretty high. That, in turn, tells me that you can get a lot more out of your grow by setting the light to the manufacturers recommended levels.
Once cannabis has a "sufficient" level of nutes, it will not grow any faster/better/taller my adding more nutes. Per the image below, once you exceed the sufficiency range, you start damaging your plants and it can be very hard to remedy the situation (much easier in hydro than SIP or soil, granted).
Light is the opposite. I have seen some growers damage their plants with too much light but it's very rare and it's, frankly, not easy to do.
Once a plant is established in the veg phase or later, cannabis will consume a huge amount of light and, in return, will generate a very significant harvest. Plants getting lotsa light are shorter and have more leaves, stems, and flowers ("infloresence") which generates a larger crop of higher quality.
Per the data below, the paper is cited, there's a measurable impact on yield of increasing light intensity. The results are significant (to me) - at by going from a PPFD of, say, 600 to 900, yield increased 5.2+4.9+4.7+4.5+4.3+4.1 ≈ 28%. Not a bad increase for turning up the dimmer.
Biscotti Punch & Space Skunk Roots
.Day 14 of Flower 
