Organic Plant tips and edges burnt

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marsuzano99

Well-Known Member
I am currently running an all organic grow. Dechlorinated water, and all natural amendments. Root zone ph was at 7.7 on all plants, so I added elemental sulfur at 2tbsps/10 gallons of soil. All pots are 10 gal fabric pots. A week after watering in the sulfur, (today) the leaf edges and tips began to burn a little, and a couple pistils also burned to orange, but not many. Is this because of the sulfur, or did I amend too hard with my worm castings, crab meal, And bone meal? Day 1 week 4 flower. Also, in living organic soil, would sulfur or dolomite lime kill off my microbes?
 

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marsuzano99

Well-Known Member
BobThe420Builder said:
Way high ph

Locking it out

pH should be 6.2-6.5 NOT 7.7
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I heard from multiple credible sources that in organic grows, using no bottled nutrients, ph is controlled by the microbes. I added the sulfur to lower the ph, but that’s when they started acting up. Does elemental sulfur kill off microbe populations?
 
PadawanWarrior

PadawanWarrior

Well-Known Member
marsuzano99 said:
I heard from multiple credible sources that in organic grows, using no bottled nutrients, ph is controlled by the microbes. I added the sulfur to lower the ph, but that’s when they started acting up. Does elemental sulfur kill off microbe populations?
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How are you measuring soil pH?
 
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marsuzano99

Well-Known Member
tkufoS said:
Should have researched this first ? No ?
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I know sulfur can be used to control mites, psyllids and thrips, and that bacteria feeds on it. I've tried searching up more information on what other microbes it helps or kills, but I can't find much information. If you're going to reply I want to know if its helping or hurting, and by asking people on rollitup, I am currently trying my best to research it. Nobody has ever told me anything bad about it, and I was just wondering if that was the cause of my problems. You're not helping so I dont need your reply.
 
BluntMoniker

BluntMoniker

Well-Known Member
grab some em1... its lactic acid bacteria in a bottle.. great soil additive for organics, AND it has a pH of 3.5, so its also great as a pH down.

And organics can buffer pH within reason. If you added an extreme amount of dolomite lime for example, the soil can only do so much... so id do what I can to help it down to the 6.0-7.0 range if its sitting above/below that.


As for leaf tips burning, if the only thing different is the addition of the sulfer, and within a few days your seeing the tips burning, its likely cause and effect.. but its too late now. A few burnt tips won't kill her though, just watch it doesnt progress
 
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marsuzano99

Well-Known Member
BluntMoniker said:
grab some em1... its lactic acid bacteria in a bottle.. great soil additive for organics, AND it has a pH of 3.5, so its also great as a pH down.

And organics can buffer pH within reason. If you added an extreme amount of dolomite lime for example, the soil can only do so much... so id do what I can to help it down to the 6.0-7.0 range if its sitting above/below that.


As for leaf tips burning, if the only thing different is the addition of the sulfer, and within a few days your seeing the tips burning, its likely cause and effect.. but its too late now. A few burnt tips won't kill her though, just watch it doesnt progress
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Thank you for the great answer and advice!
 
M

marsuzano99

Well-Known Member
PadawanWarrior said:
Nice. I have the same one. I barely use it, but I actually just did a few minutes ago for the first time in months. Runoff can be deceptive.
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These blue labs pens are the best. Runoff ph testing, slurry tests, and basing it off of your input water only go so far. Best thing is, you can use it as a regular ph meter for water and nutes too, so it really is the best for all things ph! I recommend the ec meters too! Calibration fluid ends up being a little costly so when the calibration check goes away, use as little as possible to calibrate with! Worth every penny though!
 
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