There are several benefits to crop rotation (1):
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Soil fertility
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Weed control
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Pest and disease control
Before planting, all crops should considered for the proper combination and amount planted, which can be affected by several factors. There are several families of crops that can be considered inside a greenhouse. Divide the greenhouse plot into equally-sized sections or sections based on how much you want to grow of each crop. Group crops as follows:
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Brassicas
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Brussel sprouts
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Cabbage
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Cauliflower
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Kale
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Kohl-rabi
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Oriental greens
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Radish
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Swede
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Turnips
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Legumes
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Pea
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Broad beans
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Onions
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Onion
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Garlic
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Shallot
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Leek
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Potato family
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Potato
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Tomato
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Roots
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Beetroot
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Carrot
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Celeriac
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Celery
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Florence fennel
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Parsley
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Parsnip
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All other root crops
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Crops grown anywhere in rotation
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French beans
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Runner beans
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Pepper
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Aubergine
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It is important to keep track of crop rotations. Crops should be grown, moving each crop group forward on the section of the plot. Here is an example plan:
Year One
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Section 1: Potatoes
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Section 2: Legumes, onions, roots
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Section 3: Brassicas
Year Two
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Section 1: Legumes, onions, roots
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Section 2: Brassicas
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Section 3: Potatoes
Year Three
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Section 1: Brassicas
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Section 2: Potatoes
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Section 3: Legumes, onions, roots
In a 4 year rotation, potatoes and brassicas are not as important, but legumes and onion family crops are required.
Year One
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Section 1: Legumes
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Section 2: Brassicas
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Section 3: Potatoes
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Section 4: Onions, roots
Year Two
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Section 1: Brassicas
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Section 2: Potatoes
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Section 3: Onions, roots
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Section 4: Legumes
Year Three
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Section 1: Potatoes
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Section 2: Onions, roots
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Section 3: Legumes
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Section 4: Brassicas
Year Four
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Section 1: Onions, roots
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Section 2: Legumes
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Section 3: Brassicas
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Section 4: Potatoes