irrigation
The term 'riego' refers to the process, technique, or method of watering plants, fields, or landscaped areas. It is a critical activity in the farming, gardening, and agricultural sectors, regulating water utilization to seed or assist in the growth of plants. The term irrigation in English matches the understanding of 'riego' in Spanish.
Drip irrigation is very efficient.
This example describes a form of irrigation, riego por goteo (drip irrigation), and declares it to be efficient. Riego here refers to the watering of plants or crops.
There is a risk of irrigation in this area because the terrain is very dry.
In this context, 'riesgo de riego' means 'risk of irrigation', generally referring to the potential problems or consequences (such as water wastage or damage to soil) that could arise from attempting to irrigate in an area with dry terrain.
The irrigation system is faulty.
Here, 'el sistema de riego' refers to 'the irrigation system' and declares it to be faulty or not working as it should. The term riego is being used contextually to refer to the watering system used in agriculture or gardening.