OK, acid condition is LESS than pH of 7, alkaline is MORE than pH of 7. Optimal for most crops is higher than 4, but less than 6.8 (It has been nearly 60 years ago when I studied that!)
Quick, which electrode on an electrical cell is the anode, and which is the cathode? (Trick question)
Depends on whether you are Navy or Air Force.
Per Wikipedia, electrons come from the anode i.e. it is the negative terminal.
Which is also where electrons come from a rectifier (tube or solid state).