|
Table 4. Number of plants (14 - 17 months of age) showing crown disease in 9 nursery treatments |
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| Treatment | Block | Total | % | ||
|---|---|---|---|---|---|
| I | II | III | |||
| Excessive drainage | 4 | 3 | 1 | 8 | 10.7 |
| Poor drainage | 1 | 0 | 1 | 2 | 2.7 |
| Leaf pruning | 0 | 1 | 0 | 1 | 1.3 |
| Root pruning | 6 | 2 | 4 | 12 | 16.0 |
| Mechanical damage | 2 | 3 | 1 | 6 | 8.0 |
| Double fertilization | 5 | 3 | 2 | 10 | 13.3 |
| Boron | 0 | 0 | 2 | 2 | 2.7 |
| Excess of N | 7 | 3 | 1 | 11 | 14.7 |
| Basic fertilization | 7 | 2 | 1 | 10 | 13.3 |
| Total | 32 | 17 | 13 | 62 | |
| % | 14.2 | 7.6 | 5.8 | 9.2 | |