Table 4.

Yield prediction performance of the CNN-RNN model on the subset of features. The unit of RMSE is bushels per acre.

Response	Model	Training RMSE	Training Correlation Coefficient (%)	Validation RMSE	Validation Correlation Coefficient (%)
Corn	CNN-RNN using 50% of features	16.86	89.69	22.24	80.31
	CNN-RNN using 75% of features	15.0	91.76	21.65	79.76
	CNN-RNN using 100% of features	11.48	94.99	17.64	87.82
Soybean	CNN-RNN using 50% of features	4.97	87.44	5.95	79.77
	CNN-RNN using 75% of features	4.04	92.15	5.36	83.67
	CNN-RNN using 100% of features	3.85	92.54	4.91	87.09