Perennial crop

Perennial crops are crops that – unlike annual crops – don't need to be replanted each year.[1][2] After harvest, they automatically grow back. Many fruit and nut crops are naturally perennial, however there is also a growing movement to create perennial alternatives to annual crops. For example, The Land Institute has bred a perennial wheat crop known as Kernza. By eliminating or greatly reducing the need for tillage, perennial cropping can reduce topsoil losses due to erosion,[3] increase biological carbon sequestration,[4] and greatly reduce waterway pollution through agricultural runoff due to less nitrogen input.