Inventions & Discoveries · Farming and food

Norfolk four-course system

early 16th century · 16th century

The Norfolk four-course system is a method of crop rotation in which four crops follow one another over a four-year cycle: wheat, turnips, barley, and clover or ryegrass. Unlike the earlier three-field system, it has no fallow year. It was developed in the early 16th century in Waasland, in present-day northern Belgium, and popularised in the 18th century by the British agriculturist Charles Townshend. Its fodder crop, turnips, and its grazing crop, clover, allowed livestock to be kept year-round, and it was a key development in the British Agricultural Revolution.

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First known
early 16th century
Where
Waasland, Belgium
Credited to
Charles Townshend
Built onThree-field system771–256 BCE

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See also

Cite this entry
APA
The Epoch Institute. (2026). Norfolk four-course system. In The Epoch Institute Encyclopedia. https://the-epoch-institute.org/encyclopedia/norfolk-four-course-system
MLA
“Norfolk four-course system.” The Epoch Institute Encyclopedia, The Epoch Institute, 2026, https://the-epoch-institute.org/encyclopedia/norfolk-four-course-system. Accessed .
Chicago
The Epoch Institute. “Norfolk four-course system.” The Epoch Institute Encyclopedia. 2026. https://the-epoch-institute.org/encyclopedia/norfolk-four-course-system.
Harvard
The Epoch Institute (2026) ‘Norfolk four-course system’, The Epoch Institute Encyclopedia. Available at: https://the-epoch-institute.org/encyclopedia/norfolk-four-course-system (Accessed: ).

Last reviewed October 2026Random entry ↻