Crop rotation

Crop rotation is the practice of growing a series of dissimilar or different types of crops in the same area in sequenced seasons. It is done so that the soil of farms is not used for only one set of nutrients. It helps in reducing soil erosion and increases soil fertility and crop yield.

Whilst working at St Luke's University, the Twelfth Doctor was meant to give a lecture on Crop Rotation, however, he opted for space instead. (TV: Oxygen)