Norfolk four-course system

The Norfolk four-course system is a method of agriculture that involves crop rotation. Unlike other methods such as the three-field system, the Norfolk system is marked by an absence of a fallow year. Instead, four different crops are grown in each year of a four-year cycle: wheat, turnips, barley, and clover or undergrass. It was developed in Norfolk, England in the 17th century.[1]

See also

References

  1. ↑ "Norfolk four-course system". Encyclopædia Britannica. Encyclopædia Britannica, inc. Retrieved 31 May 2017.
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