Me either, pH seems straight forward to control, and I have had blueberries for years and years. Currently I have 11 plants. If the medium you are using is acidic it’s easy. I have had a problem with too low a pH even. I don’t use meters I find the professional commercial plastic strips to be the most accurate. Proper readings are critical, essential in commercial settings and the strips always read correctly.
I agree pH will change if you’re using weak acids that organically break down. I only use sulfuric acid which converts carbonates to gypsum, and gypsum is very stable and keeps the calcium compounds from ever becoming basic again. Sulfur will do the same thing of course, just slower. I keep my pH lower than Richard at 5.0. It’s easy to mess up so must be monitored. I find peat and pine bark tend to hold the pH steady, so very little if any acid is needed. I use rainwater so don’t have to alter my water. My rainwater is very acidic here in the 5.2 to 5.5 range. If you’re using regular soil, I would agree controlling pH is difficult, not so much with peat and pine. They are very steady. Peat by itself is at 5.0. I think pine is around 5.5 so if you only use rainwater you don’t even have to control the pH. I use some garden soil in my raised beds so I monitor them regularly. Also sometimes compost which usually is basic. The ground below the beds is just slightly acidic and will steal ions too! So my raised beds require a little more management. Results are very good!
Richard is a professional, and knows what he is doing. One can learn a lot from him.
One of the most knowledgeable people on this site which includes professors, professional growers etc. I was not a professional in horticulture. i was paid to grow fungi, bacteria and viruses for MSU and Sparrow hospital. I was part of the team at Sparrow who was trying to grow the HIV virus when it first appeared at the start of the 80’s. We failed as another lab came up with a method. At first we could not grow the virus, it is a very primitive (and ancient) RNA virus, no DNA in that beast! I never grew that type before. i know how now, but I long ago retired. That was very dangerous work, but also I just loved growing cultures and isolating and keeping strains of TB and other pathogens for research.
At Sparrow hospital we had 80 different strains of TB for research. Now we have TB strains that will kill you no matter what we do. Super bugs! An interesting organism as most bacteria have protein coats, TB has a lipid coat.Some argue it is a fungus. It’s like the organism with flagella and chloroplasts. Is it animal or plant? It’s both!