All mine had the bigger leaves early on, and changed to a more sativa later
So I wouldn't judge that quit yet
So I wouldn't judge that quit yet
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Yes - I suppose notwouldn't judge that quit yet
Thanks farside! I'll see how close my slurry test is to that range. So you're thinking is I should be nuting lower than the 6.5 I currently use.
Excellent info farside, and thanks for the link! Interesting info on the difference over time. I have an open bag that got wet in the rains we had a few weeks ago so I'll compare that to the sealed dry bag I have and see if I can duplicate the results. On the weekend's agenda!An initial slurry test, like right out of the bag, will be lower, between 4.5-4.9 because the lime they add has to be wet about 7 days before it balances everything out. I'm pulling my data from HERE which is Premier Tech Horticulture's (maker of Pro Mix) website. Your 6.5 should be fine. I have 2 meters (cheap ones). I can calibrate both of them in test solution, but when I go to use them in nutes, one will normally read .2 higher than the other. I just try to get in a range rather than an exact number. I use Dyna Gro nutes and they actually recommend pH'ing between 6.2-6.8 for soil-less mixes. Your 6.5 is right in the middle and that used to be my target. Its only been the last 2 grows that I've gone to 6.2 and frankly I haven't seen any difference.
Hard to tell. It's not kicking off much heat so the low temps in the shed may be working against the overall increase in light. I'm also seeing some magnesium deficiencies like you did that I thought I was ahead of but obviously not, so there's some catching up to be done there. Sometime next week I'm going to start bumping the wattage up to see how the plants respond.Plants looking nice shed. How are your feelings about the light so far?
Hard to tell. It's not kicking off much heat so the low temps in the shed may be working against the overall increase in light. I'm also seeing some magnesium deficiencies like you did that I thought I was ahead of but obviously not, so there's some catching up to be done there. Sometime next week I'm going to start bumping the wattage up to see how the plants respond.
Here is an interesting observation: when I open the shed and move the plants, the BT2 buds have a fresh cut grass smell. Three minutes after being in the sun they smell like cannabis again. Could be the cold more than anything.
At this point I could use the heat! I'm sure I won't be saying that in the summer but they're not on as long when the plants are getting all that direct sunlight.But the cooler the better.
My lights are on all night so it can't be a dark/light reason.when the lights are off they smell more than when I open in the evenings.
That's interesting, I've never read anything about cold temps and cal/mag deficiencies. I'm going to Home Depot tomorrow to see if they have the oil-filled heaters in stock. Otherwise they'll ship it to my nearest store.Plants nutrient uptake changes with cooler temps too.. Also affects the overall vigor of your plants. Not sure if anyone said that,,, one day I'll learn to read,, but till then I'll just spout off,,, but I always see acouple cal/mag hungry plants in the gardens in the colder weather. GL and Keepem Green
My lights are on all night so it can't be a dark/light reason.
Thanks for the info Farside!The pH of Pro Mix itself should be 5.5-5.8, that's what the manufacturer balances it to. I water at 6.2-6.4 so it can drift down through the range of 6.5 to 5.5 which is the optimal range for nutrient uptake.
An initial slurry test, like right out of the bag, will be lower, between 4.5-4.9 because the lime they add has to be wet about 7 days before it balances everything out. I'm pulling my data from HERE which is Premier Tech Horticulture's (maker of Pro Mix) website. Your 6.5 should be fine. I have 2 meters (cheap ones). I can calibrate both of them in test solution, but when I go to use them in nutes, one will normally read .2 higher than the other. I just try to get in a range rather than an exact number. I use Dyna Gro nutes and they actually recommend pH'ing between 6.2-6.8 for soil-less mixes. Your 6.5 is right in the middle and that used to be my target. Its only been the last 2 grows that I've gone to 6.2 and frankly I haven't seen any difference.
Excellent info farside, and thanks for the link! Interesting info on the difference over time. I have an open bag that got wet in the rains we had a few weeks ago so I'll compare that to the sealed dry bag I have and see if I can duplicate the results. On the weekend's agenda!
Thanks Norcali! I know you just looked at the pictures but there is great information in there, particularly since my temps are falling below the 18ºC they say is the cutoff for magnesium uptake. Now that I've solved light, it looks light heat is my next priority.The effect of cold on cannabis plants - Alchimia blog
Might be worth a read for ya Shed