The following figure shows the results for the sample harvest and for the satellite based prediction. Results of conventional yield prediction based on field survey are also shown in the figure. In September 8,2 t/ha and in October 8,1 t/ha were estimated within the conventional yield prediction. These values are significantly too low, while the prediction of the remote sensing method, though also too low, is closer to the measured yield.
Fig. 4: Performance of different methods for predicting grain yield of maize in comparison with measured yield at harvest