[rictic]

I am planning a 4 yr crop rotation in this order, Potatoes, legumes, brassicas, root.  Is this the correct order?

Keep the faith.

Rictic.

[woodburner]

Looks like it to me
LINK

[Aidy]

IMHO, have the brassica follow the Legume (make use of the nitrogen nodules) and have two years between Brassica and Spuds, my rotation this year is Legume, Spuds, Roots and Brassica.