Well, I haven't added the info to any of my mods to actually make it available in the game, but as it happens, I have put together "cheat sheets" with detailed information regarding such things as duration, number of combines and required harvestable components for the various food and drink items that provisioners can create.
I've made the Excel files available here:
http://awsd.com/eq2/
Feel free to take a look, and by all means, if you spot any errors or omissions, let me know!
-- Darryl