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Table 4.
Economic efficiency of applying various forms and norms of organic fertilizers in comparison with mineral fertilizers and the natural background
| Norms and types of fertilizers | Average yield in 2016-2018, t/ha, grain-units | Total gross product, rubles/ha | Expenditures, rubles/ha | Cost price of 1 centner of grain-units, rubles | Net income, rubles/ha | Profitability % |
|---|---|---|---|---|---|---|
| Without fertilizers – control (natural background) | 2.47 | 19760 | 7800 | 315.79 | 11960 | 153.3 |
| NPK of mineral fertilizers to obtain 4 t/ha of grain and 40 t/ha of corn green mass | 4.91 | 39280 | 23732.4 | 458.25 | 15547.6 | 65.5 |
| GCM 1,0 t/ha | 4.49 | 35920 | 11133.3 | 247.95 | 24786.7 | 222.6 |
| GCM 2,0 t/ha | 5.08 | 40640 | 14466.3 | 284.77 | 26173.7 | 180.9 |
| GCM 3,0 t/ha | 5.55 | 44400 | 17799.9 | 320.72 | 26600.1 | 149.4 |
| Straw-based manure 42 t/ha (in the composition of 3 t/ha GCM) | 5.2 | 41600 | 24800 | 476.92 | 16800 | 67.74 |
| Buckwheat green manure 27 t/ha | 4.42 | 35360 | 10950 | 247.74 | 24410 | 222.92 |
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