Jacqui it’s nice to be reminded of Geoff!
I find that legume veg such as peas & beans, which have grown to full maturity then started to die off, such as runner beans now, leave few nodules for a following crop, plus their roots start to rot by now.
Two key points in general:
1 Leave as many roots in the soil as you can, from any previous crop: they are rood for microbes.Cutting stems at soil level is good, or twist stems out rather than pull, to minimise disturbance.
2 (on Marjorie’s point) Plant straightaway if the season is right. The decaying roots do not interfere with new growth.
