What is the effect of using mismatched nozzles in the same zone?

Using mismatched nozzles in the same zone leads to uneven precipitation, which is the correct answer. When nozzles have different application rates, the area where each nozzle operates will receive varying amounts of water. This can cause certain areas to become overwatered, while others may remain dry. Such inconsistency in watering can harm plant health, leading to issues such as plant stress, disease, or even death in under-watered areas, while over-watered areas may experience root rot and other problems.

Properly matched nozzles ensure that all parts of the zone receive an appropriate and consistent amount of water, promoting healthy plant growth and water efficiency. Thus, maintaining uniformity in nozzle specifications is crucial for effective irrigation system performance.