Fig 1.
Location of the study fields.
Table 1.
Used satellite images.
Fig 2.
Yield prediction map generation and analysis.
Table 2.
Descriptive statistics of the actual potato yield.
Table 3.
Potato growth stage-wise VIs and their relationship with the actual potato yield.
Table 4.
The best fit equations used for the prediction of potato yield in the three fields.
Fig 3.
Correlation between actual and predicted yield for pivot 67-S with (a) CSAVI from Landsat-8 and (b) SAVI from Sentinel-2, pivot 68-S with (c) NDVI from Landsat-8 and (d) SAVI from Sentinel-2 and pivot 44-S with (e) SAVI from Landsat-8 and (f) SAVI from Sentinel-2.
Table 5.
Model validation and performance indicators.
Table 6.
Total predicted vs. actual yields.
Fig 4.
Maps of predicted potato yield for (a) pivot 67-S using CSAVI from Landsat-8, (b) pivot 67-S using SAVI from Sentinel-2, (c) pivot 68-S using NDVI from Landsat-8, (d) pivot 68-S using SAVI from Sentinel-2, (e) pivot 44-S using SAVI from Landsat-8 and (f) pivot 44-S using SAVI from Sentinel-2.
Fig 5.
Histogram of potato yield for (a) pivot 67-S from Landsat-8, (b) pivot 67-S from Sentinel-2, (c) pivot 68-S from Landsat-8, (d) pivot 68-S from Sentinel-2, (e) pivot 44-S from Landsat-8 and (f) pivot 44-S from Sentinel-2.
Fig 6.
The variation in productivity classes of (a) Landsat-8 and (b) Sentinel-2 yield maps.