Uncle Ben
Well-Known Member
Fellers, adding pH adjusted water has little if NO affect on long term soil pH. I've done the experiment to see for myself. For a long term affect for adjusting soil pH up, use hydrated lime scratched into the soil's surface. Be careful with this stuff, it is potent. Wood ashes can also be used but again, it is potent stuff. It has a side benefit of providing K.
For dropping your soil pH, use Flowers of Sulfur or more peat.
Having said that, the all too common and erroneous "problem" in cannabis forums is that a person's pH out of wack. Folks too often use this crutch when they really have something else going wrong and can't seem to fix it - blame "it" on pH. Cannabis is tolerant of pretty wide pH swings.
Most plant foods have an acidifying effect, some mild, some significant, it depends. If your mix has alot of sulfates, it is acidic. You need a CaCO3 equivalent posted on the label to understand what that pH affect is, plus an understanding on how it all comes together (soil, water quality, etc.) regarding what your plant "sees".
UB
For dropping your soil pH, use Flowers of Sulfur or more peat.
Having said that, the all too common and erroneous "problem" in cannabis forums is that a person's pH out of wack. Folks too often use this crutch when they really have something else going wrong and can't seem to fix it - blame "it" on pH. Cannabis is tolerant of pretty wide pH swings.
Most plant foods have an acidifying effect, some mild, some significant, it depends. If your mix has alot of sulfates, it is acidic. You need a CaCO3 equivalent posted on the label to understand what that pH affect is, plus an understanding on how it all comes together (soil, water quality, etc.) regarding what your plant "sees".
UB
