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Table 3
Dynamics of the standing density of alfalfa plants, depending on the type of nitrogen nutrition (thousand units/ha)
| Calculation period | Experiment variants | HCP05 | ||||
|---|---|---|---|---|---|---|
| Control | In-1800 | Strain 425a | N30 | N30 + In | ||
| 2017(sowing year)) | ||||||
| beginning of vegetation | 1 980 | 2 000 | 2 000 | 1 980 | 2 000 | 44 |
| end of vegetation | 1 810 | 1 840 | 1 840 | 1 800 | 1 820 | 36 |
| 2018(2nd year of life) | ||||||
| beginning of vegetation | 1 650 | 1 700 | 1 690 | 1 640 | 1 690 | 48 |
| end of vegetation | 1 430 | 1 520 | 1 490 | 1 430 | 1 510 | 55 |
| 2019(3rd year of life) | ||||||
| beginning of vegetation | 1 210 | 1 320 | 1 280 | 1 210 | 1 310 | 63 |
| end of vegetation | 980 | 1 100 | 1 060 | 980 | 1 090 | 69 |
Note: * for the analysis convenience, the crop density indicators are rounded up to 10 thousandths
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