Originally Posted by ChenBenTz
I used less than the amount of nutes recommended on H&G's calculator. How would I control for N?
It's white widow. These are clones of relatively new regular female seeds but I don't see how the strain can be this bad. Is this really the max they can achieve?
My personal take...
First of all, congratulations on growing a crop all the way to harvest.
Many, many, many growers have failed the first run. Kudos!
That being said, here's my to-the-point assessment to help with your next run.
Very over fed. My goal is to shoot for a medium to light green, without deficiencies showing. The absolute minimum food necessary for full and healthy growth.
25C at the leaves? I prefer 20C and 30%RH max. RH has to match temps, at 25C your RH should be around 60%'ish. Cool and dry grows resin rich cannabis plants, like the premium hash producing regions of the world. Hot and moist grows giant sized flowers with a lower resin content, like tropical plants.
Pick which method you're going to use and stick with it. The plants want the transpiration rate to stay high and consistent.
Zero fade. I'm assuming they were the same dark green color at harvest as the photos? Just awful with chlorophyll and excess nutrients. Once the flowers quit bulking up in size, I begin dropping the nutrient strength to meet their reduced needs. Keeping 'almost' enough nutrient strength (gradually reducing toward harvest) continues the draw of nutrients from the outer leaves.
By the time harvest comes, the res only needs swapped out for r/o about 5 days before it. This leaches the remaining mobile nutrients out of the plant. It should look something like this...