Which of the following factors can affect yield monitor accuracy?

Yield monitor accuracy is impacted significantly by harvest speed and calibration errors. Harvest speed can influence the collection of data; if a combine is moving too quickly, it may not record the yield data accurately, leading to erroneous calculations of the harvest's actual output. Conversely, if the harvest speed is too slow, there may be consistent under-reporting of yield, as the sensor system may not be able to keep up with the flow of material.

Calibration errors are particularly critical because they can skew the measurement of grain flow, moisture content, and other factors that determine yield. If a yield monitor is not correctly calibrated to the specific crop type or the conditions of the field, the data it provides can be misleading. Regular calibration ensures that the equipment accurately reflects the true harvest conditions and yields.

While other factors like weather patterns and market dynamics can play a role in overall agricultural practices, they do not directly affect the technical accuracy of yield monitors in the same way that harvest speed and calibration do.