I've been thinking a lot about weeds lately, and watching the grass grow, if you will. I got a lot of useful information from another thread about When to weed and when to let be
It led me to try to find some resources on using weeds as indicators of soil nutrition. And I found a pretty nice article from almanac.com: https://www.almanac.com/weeds-indicator-plants
. I appreciate that it shows pictures and discusses a short list of probable indications.
I am having a hard time finding as simple a chart of particular vegetable needs... but what I really want is to be able to look at a plot of ground, watch it for a year. Note what weeds grow there and based on that make judgements about what crop plants are best suited without any particular soil amendments (where possible). I assume that crop rotation charts are designed with this principle in mind, but without weeds as inputs.
For example, and this is totally fictional because I have no idea, but: "Oh crabgrass huh, better plant some carrots here, they'll do great!."
Is this a pipe dream or just a gardener experience level 99 kind of thing?