Is it the soils pH that needs to be around 6.5 to up take nutes or is it the solution of the nutes that needs to be 6.5 to take up the nutes?
I am growing in soil. The pH of my RO water is 7.4. When I run that through my soil (in 1 gal containers) my runoff reads 6.5 which is what I want. If I adjust the ro water to 6.5, the runoff reads 6.2 which is too low. So heres my question. When I add nutes to the RO water, I then adjust it to 7.4 so that my runoff is 6.5. Is this correct? Can my plants still uptake the nutes?

Note:I tried flushing couple weeks ago with pH 6.5 RO water (3 gallons per plant) to try to get the soil to reach 6.5 but it didn't help much. There must be something in the soil causing a low pH. Transplanting is not an option.
stinkbudd Reviewed by stinkbudd on . Another queation for Stinky or other experts Is it the soils pH that needs to be around 6.5 to up take nutes or is it the solution of the nutes that needs to be 6.5 to take up the nutes? I am growing in soil. The pH of my RO water is 7.4. When I run that through my soil (in 1 gal containers) my runoff reads 6.5 which is what I want. If I adjust the ro water to 6.5, the runoff reads 6.2 which is too low. So heres my question. When I add nutes to the RO water, I then adjust it to 7.4 so that my runoff is 6.5. Is this correct? Can my Rating: 5