Book: Onions and other vegetable alliums

[triffid]

Downloadable pdf https://archive.org/details/Onions_a...ge/n1/mode/2up

I've found it extremely informative. Particularly the sections on day-length sensitivity, spacing, light requirements and root zone limitations, where 'traditional wisdom' is explaned with data.

[Jang]

Yes, I found it recently too, and agree that the systematic setting out of scientific data about things one otherwise picks up piecemeal is both interesting and helpful.

[Galina]

Thank you triffid.