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Both phosphoric and sulfuric acid lower soil pH when applied appropriately. Are you stating that a few mls isnt enough?To lower soil PH??? Not effective in the slightest
Im saying its not enough and it does not have any longevity in the soil. If anything it will cause a reduction and rise effect thats not beneficial. You need a sustained source over time…. Thats aluminum sulphate…. Because it continues to add the necessary acidic influence over time. That cannot be done with sulphuric or phosphoric acid in thise formsBoth phosphoric and sulfuric acid lower soil pH when applied appropriately. Are you stating that a few mls isnt enough?
Aluminum sulfate works as a soil acidifier because it forms sulfuric acid when mixed with water.
Read this and if it still doesn’t not make sense let me know. Much like potassium hydroxide will not raise soil PH over any extension time period its to available. Dolomite lime however does and therefore its a good optio to raise soil ph as is aluminum sulphate to lower itBoth phosphoric and sulfuric acid lower soil pH when applied appropriately. Are you stating that a few mls isnt enough?
Aluminum sulfate works as a soil acidifier because it forms sulfuric acid when mixed with water.
Thanks. I'll check it out.Read this and if it still doesn’t not make sense let me know. Much like potassium hydroxide will not raise soil PH over any extension time period its to available. Dolomite lime however does and therefore its a good optio to raise soil ph as is aluminum sulphate to lower it
Marijuana pH Levels for Growing Weed: A Basic Explanation
OK I'm going to do my best to explain PH since its something that is for the most part greatly misunderstood and can be confusing to new growers and even experienced growers alike. This will explain why we need both ppm and PH meters to give us informed information about PH This will be a...www.thcfarmer.com
That careies a complex answer it can work and it may not work depending on the buffering capacity of the soil makeuo to begin with.Thanks. I'll check it out.
I dont think id ever deliberately add aluminum to my media or soil in any form. Al doesnt concern you?
I notice that weekly use of sufuric acid stabilized fish hydrolysate through veg tends to drop my soil from ~7pH to about 6.5. But ya thats hitting it weekly
He's trying to lower his ph, lime will raise it.add dolomite lime to your soil
Aluminum sulfate is available on AmazonYeah i found it a home depot here in Canada lol. Used it for my raised beds
Good question. In my novice ponderings it would seem that mass/volume of soil versus volume of ph solution would decide where the ph of everything lands. Let's see what the pros here tell usQuestion for curiosity:
Soil pH is 7 and you want to get it to 6.
Can you feed your plants with nutes pH at 5 and level the pH to 6? Or does it not work this way?
I just tried soil for my first time this grow and it never went over 6.5 but I was curious if that approach would work or if it’s counterproductive.
Question for curiosity:
Soil pH is 7 and you want to get it to 6.
Can you feed your plants with nutes pH at 5 and level the pH to 6? Or does it not work this way?
I just tried soil for my first time this grow and it never went over 6.5 but I was curious if that approach would work or if it’s counterproductive.
Amazing info!! Thank youIt can work similar to that way. But it isn't a linear equation. If soil is 7 and you feed 5, the result is not immediately 6. It will be less than 7 and more than 5. It would be very close to 7 with one watering. It works gradually.
If you want it to reduce media pH faster, acid flushing at 4.0 pH works in peat. I haven't tried that with soil. It should work. When the media gets above 7, it takes a considerable amount of acid to reduce it.
Amazing info!! Thank you
Nope i meant aluminum sulphate… But there are many ways to lower soil Ph. That bacteria is much less effective.Lord have mercy. I'm pretty sure Ammonium Sulfate is what you want. Not Aluminum.
Ammonium Sulfate lowers media pH over time. However, if your Nitrate to Ammonium ratio is above 30%, THC will decrease according to science.
Plus this is actual soil here. This calls for some organic crunchy bro advice which I rarely give. OP needs some Lactobacillus Plantarum. That will supply a constant flow of lactic acid ORGANICALLY.
Yeah i get that and fair point. But the devil is in the dose… Aluminum is abundant in soil and especially can be high along with other metals in organic fertilizer. Its also a bio stimulant and has its own benefts. True high amounts can be harmful but that no different than anything else.The reason to avoid using Aluminum Sulfate is cannabis accumulates Aluminum. Smoking aluminum is something we should be limiting, not increasing. Especially when there are safer ways to reduce media pH. Of course there is some science to back up my claims.
Aluminum in Tobacco and Cannabis and Smoking-Related Disease
The study aimed to confirm the very high content of aluminum in tobacco and cannabis and to provide for the first time evidence that such aluminum cou…www.sciencedirect.com
Aluminum is abundant in soil and especially can be high along with other metals in organic fertilizer.
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