Open Access
Table 1.
The area of the leaf surface and its increase in interfacial periods of corn development, thousand m2/ha
| Power backgrounds | Hybrids | Leaf area | Leaf surface growth | ||||
|---|---|---|---|---|---|---|---|
| In a phase of 7–8 leaves | In the flowering phase | In the phase of milky ripeness | Shoots 7–8 leaves | 7–8 leaves-flowering | Flowering milky ripeness | ||
| Without fertilizer | 1 | 6.05 | 24.80 | 30.68 | - | 18.75 | 5.88 |
| 2 | 5.99 | 32.00 | 39.91 | - | 26.01 | 7.90 | |
| 3 | 6.37 | 31.61 | 37.00 | - | 25.24 | 5.39 | |
| 4 | 6.51 | 19.58 | 27.36 | - | 13.08 | 7.78 | |
| 5 | 7.65 | 31.53 | 38.60 | - | 23.89 | 7.07 | |
| NPK on 50 t/ha | 1 | 7.68 | 33.60 | 38.57 | 1.63 | 25.92 | 4.97 |
| 2 | 8.07 | 37.21 | 42.58 | 2.08 | 29.14 | 5.37 | |
| 3 | 7.65 | 37.92 | 47.59 | 1.27 | 30.27 | 9.67 | |
| 4 | 5.94 | 29.40 | 38.37 | 0.57 | 23.46 | 8.97 | |
| 5 | 9.34 | 35.15 | 44.94 | 1.70 | 25.80 | 9.79 | |
| NPK on 70 t/ha | 1 | 9.48 | 34.71 | 40.99 | 3.43 | 25.23 | 6.28 |
| 2 | 8.62 | 39.33 | 45.54 | 2.63 | 30.71 | 6.21 | |
| 3 | 9.41 | 39.68 | 48.38 | 3.04 | 30.27 | 8.70 | |
| 4 | 8.43 | 34.14 | 42.92 | 1.92 | 25.71 | 8.78 | |
| 5 | 10.68 | 36.38 | 46.61 | 3.03 | 25.70 | 10.23 | |
| LSD 05 A B AB |
0.08 0.07 2.176 |
0.04 0.04 6.34 |
0.06 0.09 0.09 |
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