I have 10 AK48 plants that are 4 weeks old and I transplanted them to foxfarm oceanforest soil a week ago and they were green and how its been a week and all the new growth is growing out yellow at the top..I mean YELLOW. I gave it epsom salt and 1/4 teaspoon of biggrow last night. IT has been 24 hours and I do not see any signs of it getting better yet. Should I be seeing signs now or will it take alittle longer for the plant to get better?
Help Me
- Thread starter pimpnitjc
- Start date
NYC Diesel
New Member
how close are the lights? and it sounds like you could be using too many or too little nutrients
HOw long will it take before I would see good results from the nutrients I used last night?
NYC Diesel
New Member
The plant usually takes about 3 days to get better, so if it doesnt get worse it should start to get better in about 2 more days
I was using Foxfarm Happy Frog. I have 10 plants. Even though I watered two days ago. I wondering if I should take one of them and water it with PHed water and see what the Runoff is?
UserFriendly
New Member
Sounds like heat stress or an iron deficiency. Give it a few days.
Tricks
Well-Known Member
Sounds to me like they need N, its been a week since he transplanted. 10 AK48's getting a 1/4 of a tsp of growbig isnt alot in veg.
New growth growing out yellow or light green is another indication of needing N.
UserFriendly
New Member
Nitrogen goes out at the older growth bro. I challenge you to prove me wrong.
UserFriendly
New Member
It could also be a sulfur deficiency, but I'm 98% sure it's heat stress.
Tricks
Well-Known Member
Thats easy, his plant never got any N till a couple days ago. So the plant didnt have any N to take out of the plant thats why his new growth comes out yellow or light green.
UserFriendly
New Member
I heard your same wrong theory the first time you posted it. 
https://www.rollitup.org/marijuana-plant-problems/38772-guide-diagnosing-plant-problems.html
Quick Deficiency Guide
Nitrogen: Entire plant is light green in color; lower leaves are yellow; growth is stunted....
......
Sulfur: Young leaves turn pale green, while the older leaves remain green; plant is stunted and spindly...
...
http://icmag.com/ic/showthread.php?t=11688
Iron (Fe) Micro Nutrient and an Immobile element
...
Iron reacts with many of the components of nutrient solutions, which will cause a nutrient lockup to occur, If you add to much Iron without adding enough Phosphorus, you can contribute to a phosphorus deficiency , so watch out how much iron and phosphorus your nutrients have. The Leaves on the plant can turn a pale yellow along the growing shoots, while the veins remain dark green. When you have pH imbalance, it can make iron insoluble. The tissue between the veins becomes pale or white, kind of mimics the magnesium deficiency, but not yellow, iron has the white where the yellow would be on the magnesium deficiency. The deficiency starts with the lower and middle leaves, while the new leaves become completely lacking in chlorophyll, but with little or no necrotic spots. The chlorotic mottling on new leaves starts first near the bases of the leaflets, so the middle of the leaf appears to have a yellow mark. Iron is difficult for plants to absorb and moves really slowly in the plant.
https://www.rollitup.org/marijuana-plant-problems/38772-guide-diagnosing-plant-problems.html
Quick Deficiency Guide
Nitrogen: Entire plant is light green in color; lower leaves are yellow; growth is stunted....
......
Sulfur: Young leaves turn pale green, while the older leaves remain green; plant is stunted and spindly...
...
http://icmag.com/ic/showthread.php?t=11688
Iron (Fe) Micro Nutrient and an Immobile element
...
Iron reacts with many of the components of nutrient solutions, which will cause a nutrient lockup to occur, If you add to much Iron without adding enough Phosphorus, you can contribute to a phosphorus deficiency , so watch out how much iron and phosphorus your nutrients have. The Leaves on the plant can turn a pale yellow along the growing shoots, while the veins remain dark green. When you have pH imbalance, it can make iron insoluble. The tissue between the veins becomes pale or white, kind of mimics the magnesium deficiency, but not yellow, iron has the white where the yellow would be on the magnesium deficiency. The deficiency starts with the lower and middle leaves, while the new leaves become completely lacking in chlorophyll, but with little or no necrotic spots. The chlorotic mottling on new leaves starts first near the bases of the leaflets, so the middle of the leaf appears to have a yellow mark. Iron is difficult for plants to absorb and moves really slowly in the plant.
UserFriendly
New Member
You should spend more time growing and less time "helping" because you don't even know what a nitrogen deficiency is.... and that's basic..... Mary Jane 101.
So it sounds like it is a maginesim def. then if it is yellow? I gave it 1/4 tablespoon of epsom salt per gallon less the 48 hours ago with 1/4 teaspoon of biggrow. So It should turn green again if that is what it is since I gave it the epsom salt? Right?
Tricks
Well-Known Member
I do pretty good growing so dont worry bout that, but if you wanna see some proof just ask.
you should learn that not all N deficiencie's look the same. Just cause a problem dont fit your guide doesnt mean it isnt there. Anywayz, i just went thru something simulair, new growth light green or almost yellow and the plant is nice and green. Most of my leaves where forming white tips and all this right after repotting. Turned out they needed N, mine where 3 weeks in veg from clone. (organic grow)
The pic clearly shows you the white tips and almost yellow new growth.
you should learn that not all N deficiencie's look the same. Just cause a problem dont fit your guide doesnt mean it isnt there. Anywayz, i just went thru something simulair, new growth light green or almost yellow and the plant is nice and green. Most of my leaves where forming white tips and all this right after repotting. Turned out they needed N, mine where 3 weeks in veg from clone. (organic grow)
The pic clearly shows you the white tips and almost yellow new growth.
Attachments
Pics of yellow tops and pics of new yellow growth between the nodes.So it sounds like it is a maginesim def. then if it is yellow? I gave it 1/4 tablespoon of epsom salt per gallon less the 48 hours ago with 1/4 teaspoon of biggrow. So It should turn green again if that is what it is since I gave it the epsom salt? Right?
The leaves are really that yellow too.
I have them under a 400 watt MH light and it is like 20 inches away. IT is not hot at the leaves. I do not know how it could be heat stress..it stays 78F
