how to raise soil ph over a large area?

TheGreatSouthern

Well-Known Member
howdy.
I have noticed what appears to be a calcium def on a 2000sqft site I'm running. growing autos and they are in week 9 from germination. this strain runs about 13 weeks to finish and they are just beginning to fatten up so time is of the essence. checked soil ph and it is around PH5. can anyone tell me the best way to raise the soil PH as quickly as possible? its worth noting the whole site is covered by impact sprinklers and I can mix and pump 800 gallons of any kind of solution onto the site if that helps. hoping to get the soil ph to around 6.5 - 7.0 to get that calcium absorbtion going again. I was just thinking of getting a few pounds of calcium nitrate and potassium carbonate and pumping it out
 

Zephyrs

Well-Known Member
howdy.
I have noticed what appears to be a calcium def on a 2000sqft site I'm running. growing autos and they are in week 9 from germination. this strain runs about 13 weeks to finish and they are just beginning to fatten up so time is of the essence. checked soil ph and it is around PH5. can anyone tell me the best way to raise the soil PH as quickly as possible? its worth noting the whole site is covered by impact sprinklers and I can mix and pump 800 gallons of any kind of solution onto the site if that helps. hoping to get the soil ph to around 6.5 - 7.0 to get that calcium absorbtion going again. I was just thinking of getting a few pounds of calcium nitrate and potassium carbonate and pumping it out
Try running light amounts of Sea Green your through lines. Just a thought.
 

Rob Roy

Well-Known Member
If you had more time I'd say broadcasting lime might help. You're probably on the right track using something in liquid form now though.

The problem with pumping 800 gallons of anything right away is if your mix is off, you've fucked everything. I might try hand feeding some with a water soluble "fertilizer" and seeing how they respond. Then if they like it, ratio up the mix to fit your 2000 sq ft. and go for it or just hand feed every one of them to ensure optimal absorption. I'm a fan of Neptunes Harvest water soluble products.
 

TheGreatSouthern

Well-Known Member
Try running light amounts of Sea Green your through lines. Just a thought.
If you had more time I'd say broadcasting lime might help. You're probably on the right track using something in liquid form now though.

The problem with pumping 800 gallons of anything right away is if your mix is off, you've fucked everything. I might try hand feeding some with a water soluble "fertilizer" and seeing how they respond. Then if they like it, ratio up the mix to fit your 2000 sq ft. and go for it or just hand feed every one of them to ensure optimal absorption. I'm a fan of Neptunes Harvest water soluble products.
Awesome, thanks so much for your help. I'll look up those products and work something out.
 

JohnDee

Well-Known Member
can anyone tell me the best way to raise the soil PH as quickly as possible?
Sorry...no can do.

But I can tell you how to lower ph really slowly...the way farmers do it. They add sulfur which bacteria change to sulfuric acid. Thus lowering the soil ph.
JD
 
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