Why might a user need to adjust their irrigation system after monitoring?

Adjusting the irrigation system after monitoring is essential primarily to ensure even moisture levels in the soil. Soil moisture is crucial for healthy plant growth, as different plants have varying water needs. Monitoring allows the user to gauge how much water is reaching the plants and the soil's moisture status. If some areas are over-watered while others are dry, adjustments can be made to the irrigation system to promote uniform distribution. This adjustment optimizes water usage and promotes healthier plants by providing a consistent moisture level, which is vital for root development and nutrient uptake.

While reducing water usage and changing plant types are relevant considerations, they are not direct reasons for adjusting the system immediately after monitoring. Adjusting for temperature of the water isn't typically a focus of irrigation system adjustments as it doesn't directly relate to the immediate needs for soil moisture balance.