Plows, Crop Rotation, and the Medieval Harvest

Plows, Crop Rotation, and the Medieval Harvest

Farming in medieval England was less a triumphant pastoral idyll and more a decades-long game of “how do we keep everyone alive until next year,” and the numbers explain why.

Fields were worked under either a two-field system (half cultivated, half left fallow each year) or a three-field rotation (a third wheat, a third barley or other crops, a third resting), with the fallow ground doing quiet, invisible work: grasses growing on it pulled nitrogen from the air back into the soil, ready for the next planting. Even the fallow field wasn’t idle, though — it got ploughed twice, once to turn under the previous crop’s residue and weeds, once again to aerate it. Nobody was getting a year off in medieval agriculture, least of all the soil.

The choice of plough mattered more than you’d think. Wheeled ploughs worked nicely in light soil but clogged in heavy clay; foot ploughs did the reverse; hook ploughs were the tool of choice for stiff ground or uneven terrain, since the smaller ploughshare shrugged off roots and stones more easily. Farmers also switched ploughs by season — foot ploughs for damper winter soil, wheeled ploughs once summer dried things out.

And the payoff for all this careful management? Before improvements kicked in, a typical yield was just four to five bushels harvested for every bushel of seed sown — compare that to twenty-times yields in the modern Netherlands, and you start to appreciate exactly how thin the margin between “adequate harvest” and “famine” really was. One bad summer, one flood, one outbreak of livestock disease, and the whole careful system tipped straight into crisis. It’s not melodrama when a medieval novel treats a poor harvest as a genuine catastrophe — it’s just arithmetic.


Step into 14th-century England—start reading The Draychester Chronicles today.