Table 2 Parameters (A, β, k, Tp) and R2 of the Gompertz functions applied to weekly radial growth under two treatments in 2015 and 2016. A, β, k, and Tp represent the upper asymptote, the x-axis placement, the change rate of the curve, and the day of maximum growth date, respectively. DOY represents the day of year. CK and CN represent control and N-treated trees
Year | Treatment | A (μm) | β | k (10−2) | Tp (DOY) | R2 |
|---|---|---|---|---|---|---|
2015 | CK | 1576.554 ± 94.523 | 4.795 ± 0.934 | 2.576 ± 0.512 | 181 ± 5 | 0.916 ± 0.042 |
CN | 1909.132 ± 62.252 | 4.464 ± 0.602 | 2.621 ± 0.343 | 168 ± 3 | 0.964 ± 0.021 | |
2016 | CK | 1951.814 ± 61.134 | 3.577 ± 0.827 | 2.554 ± 0.623 | 139 ± 3 | 0.932 ± 0.033 |
CN | 2334.321 ± 80.412 | 3.169 ± 0.721 | 2.932 ± 0.545 | 134 ± 4 | 0.923 ± 0.026 |