Agriculture Goddesses are important figures in ancient mythology. The most well-known are CERES, DEMETER, and SATURN. CERES is the Roman goddess of agriculture, grain crops, fertility, and motherly relationships. DEMETER is the Greek goddess of agriculture, grain, and fertility. SATURN is the Roman god of agriculture, wealth, and liberation. All three of these deities are associated with the bounty of the land and the cycle of life.