Table 4 Summary of field data
Plot size (m 2 ) | Number of plots (n) | Mean (Mg ha −1 ) | Standard deviation (Mg ha −1 ) | Minimum (Mg ha −1 ) | Maximum (Mg ha −1 ) |
|---|---|---|---|---|---|
200 | 30 | 411.4 | 323.2 | 53.3 | 1179.5 |
300 | 30 | 401.0 | 257.3 | 48.2 | 816.0 |
400 | 30 | 424.5 | 275.8 | 72.6 | 1185.2 |
500 | 30 | 413.8 | 263.4 | 77.8 | 1148.0 |
600 | 30 | 395.3 | 243.9 | 87.9 | 1066.6 |
700 | 30 | 371.8 | 221.5 | 75.4 | 931.7 |
800 | 30 | 363.1 | 204.4 | 74.3 | 824.3 |
900 | 30 | 366.0 | 216.3 | 69.4 | 908.3 |
1000 | 30 | 367.1 | 210.1 | 62.4 | 859.7 |
1100 | 30 | 365.6 | 203.0 | 66.4 | 839.5 |
1200 | 30 | 365.0 | 193.7 | 78.4 | 797.6 |
1300 | 30 | 361.0 | 190.5 | 82.1 | 757.9 |
1400 | 30 | 352.3 | 184.7 | 87.3 | 707.0 |
1500 | 30 | 354.2 | 180.4 | 85.5 | 757.8 |
1600 | 30 | 353.2 | 174.1 | 82.2 | 725.5 |
1700 | 30 | 355.0 | 170.2 | 95.6 | 702.6 |
1800 | 30 | 355.9 | 163.9 | 91.5 | 696.5 |
1900 | 30 | 351.1 | 159.6 | 90.7 | 703.3 |
2000 | 25 | 352.2 | 170.8 | 89.6 | 669.3 |
2100 | 25 | 350.4 | 168.0 | 85.5 | 646.2 |
2200 | 24 | 344.7 | 169.3 | 89.3 | 631.1 |
2300 | 24 | 343.0 | 167.8 | 88.5 | 639.8 |
2400 | 24 | 344.2 | 171.3 | 87.9 | 677.7 |
2500 | 22 | 332.1 | 175.0 | 84.4 | 661.5 |
2600 | 22 | 334.1 | 183.1 | 91.8 | 669.9 |
2700 | 22 | 328.0 | 179.8 | 88.6 | 674.7 |
2800 | 22 | 322.7 | 177.7 | 85.4 | 665.9 |
2900 | 22 | 323.5 | 177.9 | 82.5 | 655.6 |
3000 | 22 | 321.0 | 179.7 | 79.7 | 666.7 |