Thank you for the explanation, I had never heard the term. I had to look up what “greensand” is. My father worked for a large company that made fertilizer along with many other chemical products. I suppose my education in growing things started and ended there.My "Amend" task is amending the soil, usually with a standard per-square-foot amount of compost/manure and fertilizer and sometimes greensand, though it may vary depending on the crop or the condition of the soil.
I have considered a checklist, but things vary often enough that I suspect I'd make so many exceptions that I'd lose the advantage of the standardization of the checklist. On the other hand, I am actively working to standardize a lot of practices across the garden, so in a year or so a checklist might work just fine.
Most of the time, I don’t find the standardization of a checklist per se to be as valuable as its use as a progress tracker. Because Things now does Markdown formatting in notes, I have a lot of expressive power to format project support material however makes sense to me, including several list formats.