I recently mentioned the idea of crop rotation to a friend who replied "I'm leaving crop rotation until I get old" (the friend is, by the way 43 so not super-young). This got me thinking about the different organic methods of preventing pests and diseases. I use a combination of methods - planting guilds, companion planting and rough use of permaculture zones. And I only started to use crop rotation because I had problems with root knot nematode. I have previously launched into over-think and over-plan with crop rotation - as you'll see here with my Excel spreadsheet and here, with my rotation plan. The thing is though, that I do mixed plantings, and don't have areas that are fallow. So now, I really do a very casual version of crop rotation (still referring to my Excel spreadsheet every now and then to remind myself of what plants belong to what families) where the thinking is something like the captions of the photos below.......
|Leafy greens and flowers, good choice for main following crops would be root crops, onions, well..I"d probably plant most things, just not more leafy greens.And if it was a heavy feeder, I'd incorporate heaps of compost and manure.|
|Mmmm tomatoes, same family as potatoes, capsicum, chillies, heavy feeders, probably plant something that doesn't need much feeding (carrots, parsnips...or beans) and is not likely to have the same disease|
|Root knot nematodes on a tomato plant. Sterilise my equipment and gumboots, don't plant potatoes, tomatoes etc. here for a long time, & plant veggies that are more resistant to the disease (broccoli, spring onions, onions, other brassicas).|