What does the term "agronomy" refer to?

The term "agronomy" refers to the science of crop production and soil management. This field encompasses various agricultural practices that optimize the growth of plants while maintaining soil health. Agronomists study the interactions between the soil, crops, and environmental factors to improve yield and sustainability. They may investigate aspects such as soil fertility, crop rotation, pest management, and irrigation methods, focusing on maximizing productivity while minimizing environmental impact.

In the context of the other choices, the management of livestock pertains to animal husbandry, which is a separate branch of agricultural science. Soil conservation is a specific aspect of agronomy, but it does not fully encompass the entirety of crop production and soil management. The art of landscaping relates more to aesthetics and the design of outdoor spaces rather than the scientific study of agricultural practices. Therefore, the comprehensive nature of agronomy makes it the most accurate choice.