Bottoms leaves yellowing

mouse1818

mouse1818

Well-Known Member
Strain is northern lights x big bud by world of seeds. The very first set of leaves just above the cotyledon set are yellowing and turning brown on the edges. All the other leaves are fine. I dont know what this is maybe they are to close to the soil? I dont use any liquid nutes I mix all the nutes in about a month before I plant the seed.

 
Bugeye

Bugeye

Well-Known Member
Perfectly normal. The plant is done with those seedling leaves and doesn't need them anymore. The next set up with three points will get spent too in a little time.
 
Bshbloke

Bshbloke

Well-Known Member
nice bro ive just sprouted a freebie nl/bb cross and purple widow im sooooo looking forward to growing them out is this your thread? what others do you have another one i can follow?
 
Darth Vapour

Darth Vapour

Well-Known Member
I have never herd that its is normal or seedlings to turn yellow like that lol seriously few things that cause yellowing ,,over watering , not enough N, root bound , insects . PH issues
When looking at any plant if you notice a def starting at bottom of plant?? its usually macro issue if it starts at top of plant its Micro issue now with that said from looking at your plants there hungry
 
Doski

Doski

Active Member
Hey Darth, you get that from a book? I never hear anyone talk about how to figure out def and problems from the mobile top/bottom etc.
 
Darth Vapour

Darth Vapour

Well-Known Member
Think about it ??? no just from years of growing lets look at first pic N def starts from bottom works it way up

second pic zinc Micro issue starts at the top next pic boron starts from the top see micro issues will start at top of plants macro usually starts from bottom or older growth which is bottom / middle of the plant works its way up Micro is opposite usally starts from top works its way down
 

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Doski

Doski

Active Member
Mobile nutrients move to new growth so deficiencies appear on older vegetation. Non-mobile nutrients stay put so that deficiencies appear on new growth. Unless the damage is slight, individual leaves do not recover from nutrient deficiencies. With non-mobile nutes., look at new growth to determine whether the deficiency has been solved. With mobile nutrients, esp nitrogen, the damage will be seen first in the older leaves and not in new growth.
 
Doski

Doski

Active Member
That's from one of the books I have. I just thought you had this same one, and is where you got it from. Just curious.
 
Darth Vapour

Darth Vapour

Well-Known Member
ph issues or soil to wet you got ph tester ??? take some soil and test it 2 week old seedling should have enough to sustain it self with its cotyledons
 

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mouse1818

mouse1818

Well-Known Member
Darth Vapour said:
ph issues or soil to wet you got ph tester ??? take some soil and test it 2 week old seedling should have enough to sustain it self with its cotyledons
Click to expand...
Ph is 7.4 and it never gets too wet or too dry. Looks like the second leaves are starting to turn yellow to :(. Magnesium deficiency?
 
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