Please help! nitrogen deficiency! With 1300ppm?!

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brandonsw23

New Member
This is my second grow I’m using soil in 3 gallons smart pots with perlite,it’s a 3x3 area indoors ..I’m in 2week of flower and I’ve been fighting this problem since veg I didn’t wanna switch to flower but had no choice with the size of the 3 plants. The smart pots dry out ever other day I’m using scrog method, the room stays between 75-80f and 60% humidity.. I’ve been feeding every time I can and I know I need to water to flush but the plant keeps showing nitrogen deficiency even with feeding 1300ppm 3 times back to back every other day with advanced nutrients perfect ph micro/veg/bloom trio I do check ph and it’s usally 6.4-6.5. I’m afraid to keep raising ppm with how high it already is. Could the pots be to small? The leaves are yellowing at the bottom of the plant and yellow to the point they just fall off or brown.. there is little N burn on tips of leaves but nothing major.
 
polishpollack

polishpollack

Well-Known Member
If you have N burn on leaf tips then you don't have a N deficiency. 3 gallons isn't big enough. 1300 is way too much for a soil grow and feeding so often is way too much. Another great example of the most frequent problem. Overfeeding and failing to understand what's happening. Okay, that's two problems.
Years ago, I was reading a plant problem thread on a different forum. Someone came on with a situation like yours. Giving way too much nutrients. So I asked them why were they doing this and they said "Because I can!" Not a good reason to fert a plant.
 
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brandonsw23

New Member
polishpollack said:
If you have N burn on leaf tips then you don't have a N deficiency. 3 gallons isn't big enough. 1300 is way too much for a soil grow and feeding so often is way too much. Another great example of the most frequent problem. Overfeeding and failing to understand what's happening. Okay, that's two problems.
Years ago, I was reading a plant problem thread on a different forum. Someone came on with a situation like yours. Giving way too much nutrients. So I asked them why were they doing this and they said "Because I can!" Not a good reason to fert a plant.
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polishpollack

polishpollack

Well-Known Member
I don't see the leaf tip burning issue. Are you able to show it better? I looks like your plants are doing okay. Do smart pots have nutrients already? What do you mean by: 1300ppm 3 times back to back every other day. The timeframe you've there is very confusing. Do you feed 1300ppm once in a day and do so every other day? Or 3 times a day, every other day? Frankly, with that kind of feeding I'd think you'd better do nothing but water and see how things go. Don't flush though, as that is too much manipulation.
 
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brandonsw23

New Member
polishpollack said:
I don't see the leaf tip burning issue. Are you able to show it better? I looks like your plants are doing okay. Do smart pots have nutrients already? What do you mean by: 1300ppm 3 times back to back every other day. The timeframe you've there is very confusing. Do you feed 1300ppm once in a day and do so every other day? Or 3 times a day, every other day? Frankly, with that kind of feeding I'd think you'd better do nothing but water and see how things go. Don't flush though, as that is too much manipulation.
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I feed it 2-3 times a week at 1200-1300ppm and ya I can send some more pictures and the only real signs of nitrogen toxicity is the tips are a little burnt it’s got purple leaves steams also... the pics I uploaded are the only burn spots just the very end of the leaves..
 

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brandonsw23

New Member
Each feeding is at 1300ppm so like 2600ppm or 3900ppm all together for a givin week depending if feed 2 or 3 times that week..
the smart pots dry up so quick I feed/water them based on how heavy they are and they will be super easy to pick up within 36 hours of watering or feeding I really regret using 3 gallon pot I will definitely will go to 5-7gal smart pots next grow. I feed 1 tbs of each advanced nutrition in a gallon jug and feed each plant half a gallon. Micro 1tbs
Grow 1tbs bloom 1tbs...
 

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Blitz35

Well-Known Member
You don't have any issue with a nitrogen deficiency, you're actually feeding quite high and often at that! Those yellow tips are not a nitrogen burn, too much nitrogen will not burn the tip like that. Leaves need light to photosynthesize, those yellow leaves are under the canopy and in the shade, the plant is shedding them as they are not needed for the flowers.
 
polishpollack

polishpollack

Well-Known Member
Blitz doesn't make sense, as usual. Any time I've seen plants develop dying leaf tips it was due to too much nitrogen. If you're giving that much fert, you have too much nitrogen. You also have leaves showing air temp that is too warm. Does it get hotter than 80?
What we call "leaf tip burn" is actually leaf tissue death, first yellow then brown. Whatever nutrient is causing this, it's too much in too little of soil and too often.
 
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CannaCountry

Well-Known Member
Observing; you for sure don't have a N deficiency, and while your leaf tips may have been kissed with just a touch too much food (burnt tips), it doesn't look like you're overboard on N either. I certainly wouldn't add more N at this point though. As mentioned above it appears, at least when you took those pictures, that your area was a little warm (leaf serrations beginning to curl upwards). I wouldn't sweat the small leaves. turning yellow, at the bottom of the canopy. Focus on your new / upward growth; if it's doing well, you're doing well and the plant is doing well. I honestly don't think you have much of an issue. I would just get a handle on your feeding schedule a little more....oh, and wipe out the idea of 'flushing' from your mind. It's a misnomer for starters and it does more harm than good when you're in a soil grow.
 
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brandonsw23

New Member
CannaCountry said:
Observing; you for sure don't have a N deficiency, and while your leaf tips may have been kissed with just a touch too much food (burnt tips), it doesn't look like you're overboard on N either. I certainly wouldn't add more N at this point though. As mentioned above it appears, at least when you took those pictures, that your area was a little warm (leaf serrations beginning to curl upwards). I wouldn't sweat the small leaves. turning yellow, at the bottom of the canopy. Focus on your new / upward growth; if it's doing well, you're doing well and the plant is doing well. I honestly don't think you have much of an issue. I would just get a handle on your feeding schedule a little more....oh, and wipe out the idea of 'flushing' from your mind. It's a misnomer for starters and it does more harm than good when you're in a soil grow.
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Will do I! I plan to water this next time then feed a little less often and at lower ppm maybe 700-850
Things seem to be doing good with noticeable bulking of the buds over night the yellowing has seemed to stop also I’m sure you guys where right with it being at the bottom of canopy. Really appreciate the help and support! I will suck up as much information I can as this is my second grow. And suggestions are welcomed
 
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