Open Access
Table 2.
The quality indicators of potato tubers depending on the variety, fertilizer doses, and the planting density, 2012–2015.
| Amount of fertilizer | Planting density, thousand tubers/hectare | Starch, % | Quality, % | Dry substance, % | Nitrates, mg/kg |
|---|---|---|---|---|---|
| Without fertilizers (control sample) | 55.5 | 15.27 | 77.79 | 21.59 | 47.59 |
| 60.6 | 15.39 | 74.96 | 21.80 | 47.14 | |
| 66.6 | 15.61 | 73.10 | 22.04 | 45.61 | |
| Calculation for 30 t/hectare | 55.5 | 14.76 | 88.89 | 21.24 | 62.01 |
| 60.6 | 14.97 | 86.77 | 21.39 | 60.15 | |
| 66.6 | 15.09 | 84.47 | 21.47 | 57.08 | |
| Calculation for 35 t/hectare | 55.5 | 14.36 | 92.73 | 20.95 | 72.29 |
| 60.6 | 14.60 | 90.59 | 21.04 | 70.66 | |
| 66.6 | 14.72 | 88.58 | 21.17 | 70.22 | |
| Calculation for 40 t/hectare | 55.5 | 13.60 | 96.67 | 20.34 | 82.81 |
| 60.6 | 13.67 | 94.24 | 20.49 | 81.67 | |
| 66.6 | 13.80 | 92.44 | 20.58 | 79.31 |
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