In article , Colin Malsingh
writes
So many of the Green Manure plants have to fit into this, so it's good
to get some constructive advice.

HDRA Fact sheet GG19 gives excellent advice on crop rotation with some
examples of four year plans. It also lists the more popular garden
vegetables into their plant families. www.hdra.org.uk
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Alan & Joan Gould - North Lincs.