What causes this?
- Thread starter 4me2kn0
- Start date
This is the plant you were wondering about in other threads you started? You will have to remind us again if you are using nutrients and which ones and how much and how often. And, is it soil or coco?
Check out some of the nutrient deficiencies and excesses in some of the graphics in this thread below....
https://www.420magazine.com/community/threads/nutrient-problems-ph-plant-issues-a-visual-guide.517935/post-5577112
Check out some of the nutrient deficiencies and excesses in some of the graphics in this thread below....
https://www.420magazine.com/community/threads/nutrient-problems-ph-plant-issues-a-visual-guide.517935/post-5577112
- Thread starter
- #4
Yes, same plant. It's in soil happy frog/ocean forest/perlite mix in 5 gallon fabric pots. I use GH nutes and feed every 3-4 days. Last feed was
Per Gallon
Armor Si - 2ml
Calimajic- 2ml
Micro. - 5ml
Gro - 0ml
Bloom - 7ml
**Ph 6.8
- Thread starter
- #5
Very helpful, thank you.
grow should be back in the mix. you should be running between ec 1.2 - 1.4 you were a wee bit heavy on n earlier by the looks.
about 1.5 ml /l micro, 1.25 ml / L grow, 1.75 ml / bloom. plant is gonna choke out the lower stuff that doesn't get penetration.
about 1.5 ml /l micro, 1.25 ml / L grow, 1.75 ml / bloom. plant is gonna choke out the lower stuff that doesn't get penetration.
cbdhemp808
Well-Known Member
hey @4me2kn0,
You've got some splotchy interveinal chlorosis there (yellowing between leaflet veins). Possibly magnesium (Mg) deficiency, but I'm leaning more toward zinc (Zn). Keep in mind that iron (Fe), Zn, manganese (Mn) are interrelated plant nutrients affecting uptake/use of N and S (sulfur). Lack of N = yellowing. Lack of S = yellowing.
That said, the brown tip makes me think of potassium deficiency, and you are going into flower, so perhaps that's also an issue. Another thing that comes to mind is lack of nutrients causing nutrients to be stolen from the lower leaves, in which case, it makes me think of lack of N and Fe.
My overall conclusion/theory... it looks like your plant has been well fed during veg... nice deep green leaves, so plenty of N and Fe. Now well into flowering... make sure she's got sufficient P and K, and still feed enough N and Fe, but not as much as in veg. Include micro-nutrients Zn, Mn, and S.
happy growing!
You've got some splotchy interveinal chlorosis there (yellowing between leaflet veins). Possibly magnesium (Mg) deficiency, but I'm leaning more toward zinc (Zn). Keep in mind that iron (Fe), Zn, manganese (Mn) are interrelated plant nutrients affecting uptake/use of N and S (sulfur). Lack of N = yellowing. Lack of S = yellowing.
That said, the brown tip makes me think of potassium deficiency, and you are going into flower, so perhaps that's also an issue. Another thing that comes to mind is lack of nutrients causing nutrients to be stolen from the lower leaves, in which case, it makes me think of lack of N and Fe.
My overall conclusion/theory... it looks like your plant has been well fed during veg... nice deep green leaves, so plenty of N and Fe. Now well into flowering... make sure she's got sufficient P and K, and still feed enough N and Fe, but not as much as in veg. Include micro-nutrients Zn, Mn, and S.
happy growing!
