Land within a rotation, such as arable land, grassland within an arable rotation, temporary grassland or horticultural crops within a rotation, such as brassicas, potatoes.
Tir sydd o fewn cylchdro fel tir âr, glaswelltir o fewn cylchdro âr, glaswelltir dros dro neu gnydau garddwriaethol o fewn cylchdro, fel bresych, tatws.