Patent ID: 6983217

Claim:
A method for establishing a yield map comprising the steps of: a) harvesting a crop from a cropped area using a harvesting machine having a yield monitor; b) establishing a first data set comprising raw yield data by continuously recording yield and position data periodically at data points when the harvesting machine is in a cropped area, said yield data being generated by the yield monitor; c) storing said yield and position data in a memory; d) upon discharging harvested crop from the harvesting machine, marking the data set to indicate that crop harvested at certain data points has been discharged from the combine harvester, thereby creating a marked sub-set of discharged crop within the dataset; e) summing the yield values within the sub-set to generate the yield value of crop in the batch; f) weighing the batch of discharged crop on a batch weighing system to generate a second yield value for the batch of crop; g) comparing the weight of the batch as indicated by the yield meter with the weight of the batch as measured by the batch weighing system and determining the error between the two; h) determining a correction factor based on the determined error; i) applying the correction factor to the yield values recorded in the batch sub-set; j) repeating the process across the cropped area to create a corrected yield dataset; and k) inputting the corrected yield dataset into yield mapping software, and generating a yield map from the corrected yield dataset.