Why is fertiliser purchased by a farmer not an intermediate good?

Fertilizer purchased by a farmer is considered an intermediate good because it is used in the production of agricultural products, such as crops. However, it is not a final good since it does not directly provide utility to consumers; instead, it contributes to the production process. In economic terms, intermediate goods are those that are used to produce final goods or services, while fertilizers fit this definition by being essential in enhancing crop yield before harvesting.