Magnesium?? (pics)
- Thread starter tdiddy
- Start date
tdiddy
Well-Known Member
Ok, so its been a couple weeks and things are looking worse. I have been adding 1tbsp cal-mag, big bloom, molasses, and 2 tbsp tiger bloom to every 2-3 waterings. I have also added the cal-mag and molasses to regular waterings. Probably a total of 6-7 waterings only. Now upper leaves are showing a brown spotting and many of the lowers have died. Nute burn? What should I do?
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dirt clean
Well-Known Member
what is your ph? I bet it is off. That would cause lock out.
tdiddy
Well-Known Member
unfortunately im broke so dont have a tester. think i should go with a little lime juice for a couple waterings?
tdiddy
Well-Known Member
Added 1 tbsp cal-mag, to every watering and 1 tbsp FF big bloom, and 2 tbsp FF tiger bloom to every 2-3 waterings. the first couple waterings were about half strength. I added cal-mag every time bc i was deficient at first. this was only over about 5-8 total waterings.
M Blaze
Well-Known Member
1tbls to how much water? It doesnt look like nute burn coz the whole plant isnt showing the signs. A PH tester and a nute meter are a good investment when growing. You can buy cheap ph test kits online or at an aquarium shop.
Stoney Jake
Well-Known Member
I think your giving way to much of the wrong nutes.. To much bloom and not enough grow nutes.
Looks like nute burn coupled with N def and other nutes are getting locked out by the bloom nutes. Im no expert though
check out this thread https://www.rollitup.org/marijuana-plant-problems/158144-never-ending-abuse-phosphorous-bloom.html
Looks like nute burn coupled with N def and other nutes are getting locked out by the bloom nutes. Im no expert though
check out this thread https://www.rollitup.org/marijuana-plant-problems/158144-never-ending-abuse-phosphorous-bloom.html
Uncle Ben
Well-Known Member
Ouch!
You are adding so much stuff that you're making matters worse. Find a decent food that has all essential 16 elements, Walmart plant food is fine, and use it at no more than 1 tsp/gallon. You've added stuff the plant doesn't require and caused an antagonism element effect. What is the NPK value that the plant "sees". Do you have a full array of micros?
Don't worry about pH. Cannabis is very pH tolerant.
If you're still in the veg stage, using a Bloom food is the worst thing you can do. The high P and/or K has blocked the uptake of N. Keep using it and you'll have no leaves left which is the very unit that produces bud. It is NOT normal to lose alot of leaves prior to harvest.
UB
Stoney Jake
Well-Known Member
Im still gunna stick with my first post..
That's pretty low, yes. The optimum pH in soil is 6.8, and if you could be as low as 5 that would definitely give you some nutrition uptake problems.
tdiddy
Well-Known Member
Damn! So whats the fix?
M Blaze
Well-Known Member
Usually when you add nutes it lowers your ph. Everyones tap water is at a different ph depending on your area. For example my tap water ph is 7.6 but once I add A and B nutes it lowers it to about 6 depending on the strength of the mix.
ChemIndeuced
Member
I found a very scientific and useful site for identifying which minerals/elements your plant is deficient in. http://4e.plantphys.net/article.php?ch=t&id=289
I hope this can help a few people
I hope this can help a few people