Chris Kott wrote:One home-based approach that is more sustainable than a purchased litmus product is red cabbage water. It changes colour as the acidity changes. I believe pink means acidic.
I don't have a recipe or a colour chart handy, and it's not the best way, as it only gives you an idea of the direction in which you want to amend it, but it's a starting point you can get to without buying anything or sending soil out to a lab.
The cost of soil testing compared to how useful an in depth analysis can be is truly miniscule, though, especially if your local ag extension is subsidised to perform cheap tests.
I am curious. Why do you not want to get a soil analysis done? If you're eating the stuff you're growing, a soil test may be one of the best gifts you ever give yourself.