There are many plans for crop rotation, but the most reliable is the 5 year plan as ity seperates the main vegetable categories and gives a longer-term solution
Crop Rotation Why?
With the possible exception of a couple of perennial vegetables that occupy a permanent position (artichokes, asparagus, rhubarb etc), vegetables are sown afresh each year. The smart thing to do is grow them in different places from one year to the next, that way you will prevent your soil from becoming exhausted by your crops taking the same nutrients from the soil also you cut down the risks of disease and pest build up which could become a real problem to eradicate. There are too many rotational systems to list, but the one I favour is the 5 Year Rotational Plan.
The Five-Year Crop Rotation
Most allotment plots are sufficiently large to be divided into 5 areas, I map my allotment plots out to scale so I can divide them into 5 areas, each of these areas will cover 1 year in the rotational plan. By carrying out this plan it will be 5 years before the same type of crop is grown in the same space, thus cutting down the risk of soil depletion, pest & disease build up. Some pest like the wireworm for instance can have a 3 year life cycle before emerging as an adult click beetle, so you can see you need at least a three year plan.
- Year 1: Brassicas
- Year 2: Peans & Beans
- Year 3: Potatoes & Fruiting Vegetables
- Year 4: The Onion Family
- Year 5 Root & Stem Vegetables