Ran into a deficiency what do yal think it is
- Thread starter Chiba7
- Start date
polishpollack
Well-Known Member
who told you 2 tbls per gallon? That is way too much. It would be better to just apply it to the water. spraying plants is risky. use a small amount like 1/2 teaspoon for the entire bucket and see what happens. I don't think mg is your problem though. if you fert has mg in it, then it's probably not mg def. I'm leaning more toward over fert because you say that this started with the switch to AN but you not giving enough info, like how much are you using, what's the ppm?
Ok so I'm running 1/2 strength 3 part ph perfect. Ppms are actually lower than what I was running with ff trio I was running 500 now I'm running 350. Question is I switched to AN assuming it would self adjust to needed ph but that's not the case it's been staying around 7.04 or so which is to high I asked around ppl are saying dont worry about it the ph perfect allows nutrients to be used at higher ph. So it's been 4 days since I switched and today is when I first saw deficiency. Can u spread some knowledge on my situation
Tangerine_
Well-Known Member
Neither. They both have additives.
There's lot of misconception with ANs "PH perfect". Its not so much that it self adjusts. It simply offers a wider buffering capacity that resists ph change. (they used the Hasselbalch equation)
When trying to diagnose a mag def. its advised to foliar for quicker response. Epsom is OK and definitely works in a pinch but keep in mind its more sulfur than mag so foliar it first rather risk throwing off the other elements in your rez. Or you could stick with AN until you're little more comfortable augmenting with Cal and Mag. It can get tricky mixing and matching products from different lines.
And 350 on the 500 scale is fine for plants that size in hydro. Mag def. are common because of its high solubility. Your RH can have an effect too.
Try pumping the ppms up a little. They're tolerating the feed well but might need just a touch more.
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rkymtnman
Well-Known Member
don't use either of the epsoms you have in those bags. they ahve additives.
a pharmacy or drug store should be open , thye have plain epsom. and whoever said not to foliar is wrong, you could fix that Mg issue with 2 foliar sprays about 12 to 24 hrs apart.
if you can't get epsom, your only resort is to increase ppms. but watch out for tip burn.
a pharmacy or drug store should be open , thye have plain epsom. and whoever said not to foliar is wrong, you could fix that Mg issue with 2 foliar sprays about 12 to 24 hrs apart.
if you can't get epsom, your only resort is to increase ppms. but watch out for tip burn.
rkymtnman
Well-Known Member
why would suggest killing his plants? 2EC for those lil things? lol
Renfro
Well-Known Member
Well I feed starting at 1000 PPM and never lower. Works fine for me. I try lower feed and no bueno.
Tangerine_
Well-Known Member
Your Epsom has other additives (ginger, eucalyptus, spearmint) so no, I wouldn't use those bags you have. Regular plain old Epsom should be easy to find (if you can get in a store right now)
Your pH is a little high and that could lockout Mg but it gets a little tricky adjusting pH with AN. Because of the buffering solution, they advise growers to use RO water and NOT ph after adding nutes. (I probably would though)
Other than the beginning stage of Mg def, your plants look very good. If it were me, I'd bump the ppms and see how they respond. Some growers go much higher but some of that can depend on lighting and plant needs.
Hope this makes sense. I'm still on my first cup of java