I have just taken over an allotment and am in the process of clearing
all (well most?) of the nasty weeds etc by the end of the summer. I
plan to divide the allotment into 6 parts. One part is for permanent
crops like fruit and the remaining five would rotate in the following order:

Legumes, followed by
Brassicas, followed by
Fallow, followed by
Potatoes, followed by
Onions/Roots

I have read a number of articles on google and they all seem to offer
different rotations. For example some suggest following Brassicas by
Legumes; others suggest the reverse.

Does the plan, that I outlined above , seem OK? Or is it flawed.?

(The fallow bed is to allow me a chance to do deep deep cleaning of
weeds and will also provide a space for me to bed out some plants like
Wallflowers that I grow from seed before I transfer then to their final
positions in the autumn in the flower garden at home.)

Ed