Which irrigation method is often considered relatively inexpensive despite certain drawbacks?

The irrigation method known as overhead sprinklers is often regarded as relatively inexpensive primarily due to its simplicity and widespread availability. Overhead sprinklers are easy to set up and can cover a large area, making them an efficient choice for many growers. They are particularly useful for a variety of crops and can accommodate different field layouts, which adds to their cost-effectiveness.

With this method, water is distributed through pipes or hoses and directly sprayed onto plants from above, mimicking natural rainfall. This technique is especially beneficial for crops that require regular and uniform moisture. While overhead sprinklers do have drawbacks, such as potential water evaporation loss and uneven distribution in windy conditions, their affordability and versatility make them a popular choice for many greenhouse and field operations.

Other methods, like float systems and mat watering, offer precision and conservation of water but may involve more extensive setup costs or infrastructure, which can be a deterrent for some growers. Turbulent twin wall systems, while providing excellent aeration and moisture management, tend to be more complex and costly compared to overhead sprinklers.