index – APSIM NG Crops

The performance of Canola in the APSIM NG is summarized using datasets in the validation test set in the following apsimx files.

Tests/Validation/Canola/Canola.apsimx
Tests/Validation/Canola/CanolaOxdef.apsimx

Cultivars

Experiments

There are 23 experiments which tested all cultivars in the validation test dataset of APSIM NG. Following the link below to see the details of each experiment, including the observed and predicted values for different traits, and the performance metrics.

Table 1

This map below shows the locations of experiments without controlled environments. Following the link on the marker will take you to the details of each experiment, including the observed and predicted values for different traits, and the performance metrics.

Figure 1: Locations of experiments without controlled environments.

Performance

Overview

The table below summarizes the performance of APSIM NG for all cultivars across all experiments.

Table 2: Performance summary for all cultivars across all experiments

trait	n	r	r2	bias	mse	rmse	nrmse	d
AboveGround.N	111	0.85	0.73	0.07	6.650000e+00	2.58	0.41	0.92
AboveGround.Wt	606	0.91	0.83	-12.35	2.558836e+04	159.96	0.39	0.95
CoverTotal	338	0.82	0.67	-0.01	2.000000e-02	0.16	0.24	0.88
DaysAfterSowing	749	1.00	1.00	0.00	0.000000e+00	0.00	0.00	1.00
Grain.N	20	0.80	0.63	3.98	2.049000e+01	4.53	0.50	0.62
Grain.NConc	103	0.64	0.41	0.00	0.000000e+00	0.01	0.21	0.74
Grain.Number	133	0.76	0.58	11321.27	1.057294e+09	32516.06	0.48	0.84
Grain.Wt	136	0.83	0.69	-0.25	7.241900e+03	85.10	0.39	0.91
Leaf.Dead.Wt	415	0.20	0.04	-1.37	7.523000e+02	27.43	2.43	0.43
Leaf.LAI	441	0.75	0.56	-0.38	1.080000e+00	1.04	0.64	0.84
Leaf.Live.N	83	0.79	0.62	0.53	1.200000e+00	1.10	0.50	0.85
Leaf.Live.NConc	85	0.66	0.44	0.01	0.000000e+00	0.02	0.43	0.58
Leaf.Live.Wt	472	0.80	0.63	-13.84	1.437410e+03	37.91	0.62	0.87
Leaf.TrueLeafNumber	2323	0.91	0.82	-0.21	1.520000e+00	1.23	0.42	0.94
Phenology.EmergenceDAS	533	0.84	0.70	0.59	4.590000e+00	2.14	0.21	0.90
Phenology.FloralInitiationDAS	380	0.92	0.85	-1.07	9.615000e+01	9.81	0.19	0.96
Phenology.GreenBudDAS	505	0.90	0.81	-3.10	1.897400e+02	13.77	0.19	0.94
Phenology.StartFloweringDAS	539	0.94	0.88	2.13	1.237600e+02	11.12	0.11	0.97
Pod.N	43	0.88	0.77	0.99	3.500000e+00	1.87	0.41	0.91
Pod.NConc	53	-0.13	0.02	0.00	0.000000e+00	0.02	0.63	0.28
Pod.Wt	389	0.88	0.77	35.80	1.056984e+04	102.81	1.05	0.88
Shell.Wt	28	0.13	0.02	46.05	9.744060e+03	98.71	0.63	0.34
Stem.N	95	0.10	0.01	-0.13	9.580000e+00	3.10	1.03	0.38
Stem.NConc	112	0.56	0.32	0.00	0.000000e+00	0.01	0.65	0.75
Stem.Wt	485	0.89	0.79	-33.83	9.438080e+03	97.15	0.54	0.93

Comparison of observed and predicted values

The model performance is compared with observed and predicted values for all cultivars across all experiments. The plots below show the observed vs predicted values for different traits. Each point represents an observation from an experiment. The closer the points are to the diagonal line, the better the performance of the model for that trait.

The range of observed and predicted values are estimated using data in this page, which may be misleading for the narrow ranges of observed and predicted values.

Using the Expand All and Collapse All buttons below, you can expand or collapse the sections for each trait to see the observed vs predicted plots for different traits.