The Four-field crop rotation is a method of farming in which the plot of land is split up into four seconds. Three of them are planted, and one is left to fallow. The fallow land helps create a more fertile soil, eventually creating better growing conditions for plants. Crop rotation is the practice of growing two (or more) dissimilar type of crops in the same space in sequence. ... Growing the same crop repeatedly in the same place eventually depletes the soil of various nutrients. ... For the heavy metal band see Soil (band) Soil is a general term for the material that lies on the surface of the earth, supporting the growth of plants and serving as a habitat for animal life from microrganisms to small animals. ...