Agronomy is the correct answer. Agronomy is the study of field crops, which includes understanding their growth, production, and management. It focuses on various aspects such as soil fertility, plant genetics, crop selection, and weed control. Agronomists play a crucial role in maximizing crop yields and ensuring sustainable agriculture practices.
To better understand the options:
1. Pomology is the study of fruit cultivation, so it is not related to field crops.
2. Agronomy is the study of field crops, as explained above, and is the correct answer.
3. Olericulture is the study of vegetable cultivation, so it is not focused on field crops.
4. Floriculture is the study of flower cultivation, which is also not directly related to field crops.
Therefore, the correct answer is agronomy.