HI.
I had six plants going in soil ( fox Farm ocean forest) They are Blueberry cross plants. They were nice. Sadly 5/6 came out male. So I separated the males and reverted the female (after 4 days of 12/12 when sex showed) so I can later get clones . The female is growing good but now 4 to 6 leaves are showing yellowing on the edge of the leaves as in the top two rows of the photo below. All other leaves are normal green. I use FoxFarm grow big. (5ml/gal) every watering and flushed last week for the first time. What in the world am I missing. MG? CA? .. why? I am fertilising. I just bought superthrive too and added 1 time (drop/gal) Please advise.

Thank you.

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My two cents, they look relatively normal. I wouldn't worry unless the problem gets noticeably worse.

Looks like a little bit of nute burn to me, plus you really shouldn't need to flush the soil yet. Next time you water, just PH it and pour, add nothing else. Catch some runoff water from the bottom in a cup and measure the PH of it. Let us know what it was.

Plants look pretty good, nothing serious yet.

Same issue is starting to appear on more leaves!. (

Top four photos appear just like what I've seen that is said to be zinc deficiency, at least that's what I recollect. Check my thread here: Issues with the Organics, PIX I'm told it's a magnesium deficiency and have begun treating accordingly. On some plants the inter-vein yellowing is spreading very quickly.

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This isn't specific for mj, but it's pretty damned good: Plant Physiology Online: Symptoms of Deficiency In Essential Minerals

Here's another one: http://www.onlinepot.org/grow/nutrients2.htm

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I nute once a week or less, not every water.... If its growing well, more nutes don't help....


Luck

BAsed on your Help feedback I assume its either Zinc or Iron deficiency. I ll reduce nutes too to see if it remedies the situation. Any suggestions on what supplemetal fertiliser for minerals I should buy? Organic is preferable.

If you wish to see a pictorial history on my garden plz look at this thread:

Q:Can i do everything to a female plant?

By the way , I have never seen a more comprehensive forum than this one. THANKS to its pioneers and everone's participation.

More pictures of this problem are below as it is getting worse daily!

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You've gotta get one of the old-timers in on this.

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Could it be that the foliar feeding I do 4-5 times a week has done the nute burn on leaves that sort of cup the water. Once the water evaporates, the salt stays and burns the leaf. I hope this is the problem. Ill wash the leaves and see what happens.

ps How does one get "old Timers" to notice you? haha send them a big bud? haha