The study compared two methods to measure erosion control in croplands in Northern Germany. One method used a computer model to estimate soil loss, while the other method used actual monitoring data. The monitoring data showed that the computer model underestimated erosion in certain areas. By using more accurate models, we can better understand and manage soil erosion in croplands. Overall, the study found that erosion control in the area was generally good, but there were differences between fields due to varying management practices.