Which of the following is a characteristic of drip irrigation?

Drip irrigation is designed to provide water directly to the root zone of plants, which is a key characteristic that makes this method highly efficient. By delivering water precisely where it is needed, the system minimizes evaporation and surface runoff, thereby conserving water. This targeted approach also enhances the uptake of nutrients by the plants, as the water carries dissolved nutrients directly to the roots. The efficiency of drip irrigation is particularly beneficial in arid regions or areas where water conservation is a priority, as it allows for more controlled and sustainable usage of water resources.

In contrast, the other choices present characteristics that do not align with the fundamental principles of drip irrigation. For instance, it is not inefficient in water use; rather, it is one of the most efficient irrigation practices available. Unlike systems that distribute water across an entire field, drip irrigation focuses on localized delivery. Additionally, it typically requires less labor compared to traditional methods, as fewer operational tasks are necessary to manage the water application effectively.