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Table 3.
The effect and aftereffect of various forms of organic fertilizers on the yield of crops of the grain tillage sequence of the grain tillage crop rotation in comparison with the effect of mineral fertilizers and the natural background
| Norms and types of fertilizers | Effect on spring wheat yield, t/ha grain-units (2016) | Aftereffect of the 1st year on corn yield (2017) | Aftereffect of the 2nd year on spring wheat yield, t/ha grain-units (2018) | Total yield of 2016-2018, t/ha grain-units | Total yield increase as compared to control, t/ha grain-units, 2016-2018 | |
|---|---|---|---|---|---|---|
| Green mass, t/ha | In grain units, t/ha | |||||
| Without fertilizers – control (natural background) | 1.95 | 20.9 | 3.55 | 1.90 | 7.40 | – |
| NPK of mineral fertilizers to obtain 4 t/ha of grain and 40 t/ha of corn green mass | 4.24 | 41.5 | 7.06 | 3.43 | 14.73 | 7.33 |
| GCM 1,0 t/ha | 4.22 | 33.5 | 5.7 | 3.55 | 13.47 | 6.07 |
| GCM 2,0 t/ha | 4.37 | 41.2 | 7.0 | 3.88 | 15.25 | 7.85 |
| GCM 3,0 t/ha | 4.62 | 46.1 | 7.84 | 4.20 | 16.66 | 9.26 |
| Straw-based manure 42 t/ha (in the composition of 3 t/ha GCM) | 3.93 | 44.9 | 7.63 | 4.05 | 15.61 | 8.21 |
| Buckwheat green manure 27 t/ha | 3.72 | 35.0 | 5.95 | 3.60 | 13.27 | 5.87 |
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