In mixed cultivation, two or more different types of crops are sown in a particular field at the same time. Mixed cultivation means that one plant supports the other. Some plants positively or negatively influence each other. The crops chosen are such that the nutrient needs of one crop are fulfilled by the other. For example, a leguminous plant (a plant having seeds in long pods) such as pea can be grown in the same field, along with a cereal such as wheat.