Table 3 Average percentage difference for corn planting areas at county level from NASS to CDL and R-CDL in different years.

From: Validation and refinement of cropland data layer using a spatial-temporal decision tree algorithm

Corn

2017

2018

2019

2020

CDL

4.2%

6.7%

6.7%

9.6%

R-CDL

−2.1%

−0.5%

−1.1%

0.6%