Open Access
Table 3.
The yield of corn hybrids in the phase of milky-wax ripeness, t/ha
| Power backgrounds | Hybrids | Productivity, t/ha | Increase from fertilizer, t/ha | |||
|---|---|---|---|---|---|---|
| Years | Average for 3 | |||||
| 2013 | 2014 | 2015 | ||||
| Without fertilizer | 1 | 27.7 | 28.4 | 19.3 | 25.1 | - |
| 2 | 26.5 | 27.5 | 18.6 | 24.2 | - | |
| 3 | 23.1 | 31.6 | 14.1 | 22.9 | - | |
| 4 | 19.4 | 26.5 | 21.9 | 22.6 | - | |
| 5 | 28.3 | 32.5 | 23.4 | 28.1 | - | |
| NPK on 50 t/ha | 1 | 42.3 | 44.8 | 36.7 | 41.3 | 16.1 |
| 2 | 43.3 | 45.5 | 40.0 | 42.9 | 18.7 | |
| 3 | 30.3 | 42.3 | 33.4 | 35.3 | 12.4 | |
| 4 | 33.7 | 44.6 | 35.1 | 37.8 | 15.2 | |
| 5 | 43.9 | 45.2 | 42.6 | 43.9 | 15.8 | |
| NPK on 70 t/ha | 1 | 50.9 | 66.1 | 65.3 | 60.8 | 35.6 |
| 2 | 52.6 | 67.9 | 67.2 | 62.6 | 38.4 | |
| 3 | 50.7 | 63.0 | 63.9 | 59.2 | 36.3 | |
| 4 | 48.3 | 60.4 | 62.0 | 56.9 | 34.3 | |
| 5 | 64.4 | 65.0 | 66.5 | 65.3 | 37.2 | |
| LSD 05 A B AB |
0.23 0.18 6.00 |
0.23 0.26 4.01 |
0.23 0.26 4.01 |
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