What does the term 'cycle' refer to in irrigation?

The term 'cycle' in irrigation primarily refers to a method of soaking and watering that involves breaking up the total watering duration into multiple shorter sessions. This technique is designed to allow water to seep into the soil more thoroughly and avoid runoff, ensuring that plants receive adequate moisture without overwhelming the soil's absorption capacity.

By using a cyclical approach, irrigation systems can effectively manage water distribution, allowing it to penetrate deeper into the root zone rather than just saturating the surface. This method is particularly beneficial for preventing erosion and maximizing water efficiency in irrigation practices.

The other choices, although they pertain to irrigation or gardening, do not accurately capture the specific meaning of 'cycle' in the context of irrigation practices.