Taranaki
January
Q.
I am looking for a simple easy to follow list for crop rotation. As an example, I have multiple gardens and can get multiple crops out of each one per year but I want to know what to plant next - I have potatoes in now but what next and what after that and so on. In another garden I have brassicas but what next and what after that and so on.
Lisa Melville
A.
Hi Lisa, crop rotation is all about not planting plants from the same family in same part of the garden year after year as they are susceptible to the same pests and diseases, rotation stops them becoming persistent. Generally crop rotations work in 3-4 seasonal cycles, if you have the space. Divide the garden into equal plots and group plants from the same family in each plot. How you treat each plot will vary depending upon what is being grown. Apply generous amounts of compost to garden beds for potatoes, and brassicas, but not for root crops such as carrots, beetroot and parsnips. Decide what vegetables you are going to grow and divide them into their families and plant away. Don't forget to leave one bed fallow (empty) with a green crop in your rotation, this adds valuable organic matter back into the soil, and if planting mustard as a green crop, will deter any soil nematodes when dug back into the soil. Family groups are: Beet family: beetroot, silverbeet, chard, spinach; Brassica (cabbage) family: broccoli, brussel sprouts, cauliflower, cabbage, kale, kohlrabi, mustard, asian greens bok choi etc, radish, swede, turnip; Carrot family: carrot, celeriac, celery, fennel, parsley, parsnip; Daisy family: lettuce, chicory, endive, salsify, jerusalem artichoke; Marrow family: cucumber, courgette/zucchini, marrow, melon, pumpkin, squash; Onion family: garlic, onions, leek, shallots; Pea and bean family: broad beans, french beans, butter beans, runner beans, peas, snow peas; Potato family: Aubergine, capsicum, chillies, peppers, potato, tomato. Hopefully this will help you plan your next crop. Tui have a crop rotation guide on the website, click on this link Crop Rotation Guide . The Tui Team.
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