@alan was bringing up calcium issues back on gardenweb which may have been where i learned from but i can’t recall now. It may have been from college. Here is one place where he discussed calcium
Briefly i discussed the basis of soil science here ReplytoOlpea-topic Harrow Program Pears - #144 by clarkinks . @marknmt there is much more we posted. Acres USA was some of my favorite reading material seems like over 20 years ago. Grace Gershuny and other authors were some of my favorites that covered basic soil science.
The pictures of my soil in my garden in this thread says plenty. The food tastes great from the garden. It is very healthy food!