Which of the following is NOT a device used for soil moisture monitoring?

• A. Soil Probes
• B. Tensiometers
• C. Soil Moisture Sensors
• D. Soil Compactors

Answer: (D)

The correct choice indicates a device that is not used specifically for soil moisture monitoring. Soil probes, tensiometers, and soil moisture sensors are all tools designed to measure the moisture content of the soil, which is crucial for effective irrigation management and promoting water efficiency in landscaping.

Soil probes can help determine the moisture levels at different soil depths. Tensiometers measure the tension or suction of water in the soil, giving insight into how much water is available to plants. Soil moisture sensors directly measure the volumetric water content in the soil.

On the other hand, soil compactors are devices used to compress and consolidate soil for construction purposes. They do not provide any information on soil moisture levels and are not applicable for monitoring soil moisture. This highlights why the selection made is indeed accurate, as it identifies a tool that serves a different function entirely.