deficiency?

asaph

asaph

Well-Known Member
jawbrodt said:
Thanks for backing me on that, I was getting the vibe that he wasn't quite sold on the idea, when I mentioned it. I've made the mistake myself, which is how I discovered it, and was shocked to see how destructive it was to let them drying to the point of drooping, especially during flowing. I've had 30" plants lose 2/3 of their fan leaves, in a matter of a few days, after a bad dry spell.(of my own creation, or course.lol) There's no stopping it, either. Once they've dried beyond a certain point, the damage has been done. And, even though the foliage perks right back up after watering, those leaves are doomed. After a couple days, they'll rapidly turn yellow and die, falling off, soon afterwards. Makes me wonder how many times this has happened here at RIU, and is mistaken for a N deficiency? Probably quite a bit. :)
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Well it's true, I wasn't sold on it... I read and made sense that it's better to let the plant droop a bit (but not too much) than to water the soil when it's wet. I held on to that because it made sense somehow, but you two are probably right. The thing is I can't really tell when the soil is dry just enough (yet), but i do have a sense of wetness for it so i can prevent it from drooping. haven't had root rot so far, that i know of. then again, i never let it droop for more than a couple of hours, so i've never seen top fan leaves that died because of it. only the yellowing problem, but somehow i wouldn't think it's relatted. anyway, i will try not to let them droop. and the rest of the plan. I flushed them earlier. gonna feed them soon.
 
jawbrodt

jawbrodt

Well-Known Member
^Root rot is harder to get, than you might think, especially with bigger plants that process alot of water. On my first grow, I watered them every single day, in crappy topsoil with zero perlite, and they grew great. They were in 2 gallon pots, and 3' tall, which was the reason for that. Yeah, the soil was always moist, but not wet. Not for long, anyway. IMO, if you have 20%+ perlite, you can water every day, and not worry about root rot. Of course, that'd be dumb to try, but you get the point. IMO, if the top 10% of soil is dry, it's safe to water. Better yet, get used to lifting your pots to determine moisture content. Surprisingly, even though it sounds inaccurate, it's the best way, IMO. Counting days, doesn't work so well,(it does pretty well, though) because plants use water at different rates, even if their the same size and strain. Try it, you'll see what I mean. :) Nowadays, I water if I think they are getting close to drooping, rather than risking it. I've lost waaaay too many fans leaves for the risk to be worth it.

If the pot is a little larger than that plant requires, it's more risky. You'll have to make adjustments for that, using your own logic. :)
 
asaph

asaph

Well-Known Member
jawbrodt said:
^Root rot is harder to get, than you might think, especially with bigger plants that process alot of water. On my first grow, I watered them every single day, in crappy topsoil with zero perlite, and they grew great. They were in 2 gallon pots, and 3' tall, which was the reason for that. Yeah, the soil was always moist, but not wet. Not for long, anyway. IMO, if you have 20%+ perlite, you can water every day, and not worry about root rot. Of course, that'd be dumb to try, but you get the point. IMO, if the top 10% of soil is dry, it's safe to water. Better yet, get used to lifting your pots to determine moisture content. Surprisingly, even though it sounds inaccurate, it's the best way, IMO. Counting days, doesn't work so well,(it does pretty well, though) because plants use water at different rates, even if their the same size and strain. Try it, you'll see what I mean. :) Nowadays, I water if I think they are getting close to drooping, rather than risking it. I've lost waaaay too many fans leaves for the risk to be worth it.

If the pot is a little larger than that plant requires, it's more risky. You'll have to make adjustments for that, using your own logic. :)
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my big plants, the ones two weeks from harvest i water everyday. they are 3 plants in one pot, and are very root-bound for long now. it's also very hot, around 90 at noon. the soil actually gets dry by noon-time, even if i watered at the end of the previous day. I do use to lifting method, it is pretty good, i feel i can get a good grasp of how dry it is.
 
asaph

asaph

Well-Known Member
btw, i read a bit and they say that foliar feeding can cause nute-burn, and advise not to do it more than once a week. i'm gonna do it anyway, and hope for the slightest improvement.
 
jawbrodt

jawbrodt

Well-Known Member
^It can cause nutebnurn, but not in the way you would think. It's so effective, that if you add much to the soil, they'll get burned, because they never needed any fert in the first place. The foliar will keep them fulfilled, if done often enough.


In the grow I'm doing right now, they are 6 weeks old, and haven't got any regular fert yet, except through foliar. They are practically flawless, as far as heath goes. Not a discoloration, or a burnt leaf tip, anywhere. Just threw 'em on 12/12, and plant to use foliar for another 4 weeks. I'm also going to start with bloom fert(root-feeding), next time they need watered, but will be going less than 1/2 strength(1.5-6-3 is 1/2 strength) with it, then see how they react. I'm expecting it to be my best grow, so far. :bigjoint:
 
asaph

asaph

Well-Known Member
jawbrodt said:
^It can cause nutebnurn, but not in the way you would think. It's so effective, that if you add much to the soil, they'll get burned, because they never needed any fert in the first place. The foliar will keep them fulfilled, if done often enough.


In the grow I'm doing right now, they are 6 weeks old, and haven't got any regular fert yet, except through foliar. They are practically flawless, as far as heath goes. Not a discoloration, or a burnt leaf tip, anywhere. Just threw 'em on 12/12, and plant to use foliar for another 4 weeks. I'm also going to start with bloom fert(root-feeding), next time they need watered, but will be going less than 1/2 strength(1.5-6-3 is 1/2 strength) with it, then see how they react. I'm expecting it to be my best grow, so far. :bigjoint:
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sounds cool! do you use fertile soil, or sterile?
 
jawbrodt

jawbrodt

Well-Known Member
asaph said:
sounds cool! do you use fertile soil, or sterile?
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I use Fox Farms Ocean Forest, mixed 50/50 with Happy Frog. It's fairly rich stuff,(fertile) and can sustain them for a month, quite well. I started foliar feeding sometime around week 4.
 
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