True or False: A WBIC irrigation schedule requires field data about the irrigation system, plants, and soil.

• A. True
• B. False
• C. N/A
• D. Depends on the system

Answer: (A)

A WBIC (Water Budget Irrigation Controller) irrigation schedule is designed to optimize water use based on specific environmental conditions and the needs of the landscape. It takes into account field data about the irrigation system itself, as well as the types of plants being watered and the characteristics of the soil. This data is vital because it helps create a customized irrigation schedule that accurately reflects the water requirements of the plants, the water supply capabilities of the system, and the infiltration rate and retention properties of the soil.

For instance, different plants have varying water needs depending on their growth stage and type, while soil types affect how much water can be absorbed and how quickly it drains. Without this field data, it would not be possible to create a precise and effective irrigation schedule, which would either lead to under-watering or over-watering, both of which can be detrimental to plant health and water efficiency. Therefore, the statement is true, as having accurate and relevant field data is essential for the development of an effective WBIC irrigation schedule.