Table 8 Fertilization ratio for each layer.
From: Design optimization and experiment of corn U-shaped fertilization device
Fertilizing placement | Test results (g) | Mean value (g) | Coefficient of variation (%) | Relative error (%) | ||
|---|---|---|---|---|---|---|
1 | 2 | 3 | ||||
Left side | 296.3 | 303.7 | 298.6 | 299.5 | 0.07 | 1.4 |
Right side | 301.1 | 297.1 | 294.1 | 297.4 | 0.08 | 1.2 |
Upper ayer | 201.1 | 202.0 | 199.1 | 200.4 | 0.35 | 0.8 |
Middle layer | 201.0 | 207.5 | 201.2 | 203.2 | 0.11 | 2.1 |
Lower layer | 197.8 | 198.2 | 197.3 | 197.7 | 0.16 | 0.3 |
