medicalmary
Active Member
I found this feeding schedule from dyna gro website, which is almost certainly for mj. However, i don't follow it. I just used it to ballpark the actual concentrations of the nutrients in ppm. The n-p-k is actually the minimum threshold so your ppm could be about 10-15% higher.
I have been using foliage pro and pro-tekt for vegging. Last application I switched to liquid grow 7-9-5 formula because I'm flipping to 12/12 next week. If you want to know more about my ratios then check out the third page of my journal. Personally, I don't think ratios are all that important. MJ is a forgiving plant that will take a wide range of n-p-k ratios. I do subscribe to the higher nitrogen content during bloom in order to keep those fan leaves nice and green all the way through. Higher phosphorus is helpful in late bloom, but not in some of the ridiculous ratios that are on the market today. Here are some posts with constructive arguments about dyna-gro and n-p-k ratios:
http://www.icmag.com/ic/showthread.php?t=177955
https://www.rollitup.org/advanced-marijuana-cultivation/322450-lucas-formula-dyna-gro-cannatari.html
http://www.angelfire.com/cantina/fourtwenty/articles/profiles.htm
I also don't use the lucas formula or any derivation of it. Just kind of judge it by plant development and top out at 1100-1300ppm around 2-4th week flower. This is including the 50-90ppm in my tap water.
hope this helps
mm
I have been using foliage pro and pro-tekt for vegging. Last application I switched to liquid grow 7-9-5 formula because I'm flipping to 12/12 next week. If you want to know more about my ratios then check out the third page of my journal. Personally, I don't think ratios are all that important. MJ is a forgiving plant that will take a wide range of n-p-k ratios. I do subscribe to the higher nitrogen content during bloom in order to keep those fan leaves nice and green all the way through. Higher phosphorus is helpful in late bloom, but not in some of the ridiculous ratios that are on the market today. Here are some posts with constructive arguments about dyna-gro and n-p-k ratios:
http://www.icmag.com/ic/showthread.php?t=177955
https://www.rollitup.org/advanced-marijuana-cultivation/322450-lucas-formula-dyna-gro-cannatari.html
http://www.angelfire.com/cantina/fourtwenty/articles/profiles.htm
I also don't use the lucas formula or any derivation of it. Just kind of judge it by plant development and top out at 1100-1300ppm around 2-4th week flower. This is including the 50-90ppm in my tap water.
hope this helps
mm