In most cases, high pH is a symptom of a problem elsewhere in your production system, so addressing it without dealing with the root causes will be ineffective
by KEITH REID
Occasionally, farmers will complain that their soil pH levels are increasing and demand some way to bring the levels back down. They are generally quite disappointed when I tell them that anything they try will be expensive and not likely to be effective anyway.
To avoid this unpleasantness, it is worth considering what may be causing soil pH to increase (whether real or apparent), and how changes to farm practices may prevent soil pH changes.