‘Soils and crops’ looks at what soils are, how they differ, how they are classified, and how farmers manage them. Soil anchors and feeds the crops and the type and depth of it is fundamental to the crops that can be grown. Plants get their major constituent elements—carbon, hydrogen, and oxygen—from the air they take in through their leaves and the water taken up by their roots. They also require several other nutrients, the most important being nitrogen, phosphorus, and potassium. How do plants grow? What prevents them from growing? How can we improve their growth? These questions are considered along with some of the major crops and cultivation systems used.