Lots of winter/spring chickweed sounds really familiar to me. More or less every small scale veggie farm I’ve been to in the mid Atlantic has the same seasonal chickweed problem you’re describing, and on my farm it’s fairly ubiquitous, even when fields vary in soil type, whether soil is under plastic or not, there’s been deeper tillage or shallower, etc.

In the warmer months, substitute galinsoga for chickweed in these same fields.

I own the pamphlet that was scanned but I’ve never found it very practical, but maybe I’m missing something. Our high tunnels have a pretty persistent chickweed problem yet the calcium levels are quite elevated in all of them. Obviously each mineral isn’t going to correspond exactly to what’s listed, but I find the correlations hard to act upon.

Has anyone translated the French language book that I keep hearing about?