What is a "canal system" used for in agriculture?

A canal system in agriculture is specifically designed for water distribution, serving a crucial role in irrigation. This system allows water to be efficiently channeled from a source, such as a river or reservoir, to agricultural fields. By managing the flow of water, a canal system ensures that crops receive the necessary moisture for growth, particularly in regions where rainfall may be insufficient or irregular.

Understanding the significance of this system highlights how effective water management can directly impact crop yields and overall agricultural productivity. Other options such as soil fertilization, crop sowing, and pest control, while important aspects of agriculture, do not directly relate to the function of a canal system. These processes may be dependent on water supply, but they are not the purpose of the canal itself.