The effect of soil cultivation systems on agronomic and physical properties of dark gray soil and productivity of the field crop rotation link

The purpose of the research is to identify the most effective and preferable variant of the basic autumn tillage for inclusion of dark gray forest soil into the tillage system when sowing spring crops. The research was carried out in 2021–2023 in the conditions of the Chuvash Republic in the link of the field crop rotation "barley–peas–oats". Moldboard and non-moldboard autumn soil tillage methods were compared: plowing (26–28 cm) – control; cultivation (15–17 cm); disking (12–14 cm); without tillage. The tillage system was completed by surface early pre-sowing cultivation to a depth of 6 cm. During the studied years, the average soil density in the 0–30 cm layer was within the optimal values: after moldboard plowing it was 0.93–1.09 g/cm³ , after cultivation – 0.98–1.13 g/cm³ , without basic tillage– 1.05–1.20 g/cm³ . The average values of the soil porosity after plowing were in the range of 50.4–62.5 % and decreased with the abandonment of the basic tillage to 52.0–57.4 %. In arid conditions of 2021 growing season, the total supply of productive moisture in the 0–30 cm soil layer was 12–14 % higher after cultivation than after plowing. The analysis of the structural and aggregate state of the soil (0–20 cm) revealed an increase in the proportion of dusty particles by the end of the experiment after plowing from 3.9 to 6.9 %. When using a stubble cultivator as the basic tillage unit, the proportion of the lumpy fraction increased. The average annual productivity of the crop rotation link during moldboard plowing was the highest – 20.5 c/ha of grain units per 1 ha, after cultivation – 19.5 c of grain units per 1 ha. At the same time, plowing is the most expensive and economically unprofitable way of basic soil preparation. After cultivation with a KOS-3.0 combined stubble cultivator, the profitability of crop cultivation was significantly higher – 9.4–18.1 % after cereals in dry years and 96.9 % after peas under optimal hydrothermal conditions (for plowing – 8.3–4.2 % and 73.7 %, respectively).

1. Foley J. A., Ramankutty N., Brauman K. A., Cassidy E. S., Gerber J. S., Johnston M., et al. Solutions for a cultivated planet. Nature. 2011;478:337–342. DOI: https://doi.org/10.1038/nature10452

2. Volkov A. I., Prokhorova L. N., Kirillov N. A. Ecological sustainability of agrocenoses when implementing no-till technology. Ekologicheskiy vestnik Severnogo Kavkaza = The North Caucasus Ecological Herald. 2020;16(4):45–48. (In Russ.). URL: https://www.elibrary.ru/item.asp?id=44209138

3. Kiryushin V. I. The management of soil fertility and productivity of agrocenoses in adaptive-landscape farming systems. Pochvovedenie = Eurasian Soil Science. 2019;(9):1130–1139. (In Russ.). DOI: https://doi.org/10.1134/S0032180X19070062

4. Zhuk A. F., Khalilov M. B., Abdulnatipov M. G. Technologies, methods and technical means for resource-saving tillage. Problemy razvitiya APK regiona. 2020;(4):52–58. (In Russ.). DOI: https://doi.org/10.15217/issn2079-0996.2020.3.52

5. Antonov V. G. The effect of minimum methods of primary tillage on the structural and aggregate composition of gray forest soil in the Chuvash Republic. Agrarnaya nauka Evro-Severo-Vostoka = Agricultural Science Euro-North-East. 2020;21(6):733-742. (In Russ.). DOI: https://doi.org/10.30766/2072-9081.2020.21.6.733-742

6. Dubovik E. V., Dubovik D. V. Change in the humus state of typical chernozem with various methods of tillage. Agrarnaya nauka = Agrarian science. 2024;(1):92-96. (In Russ.). DOI: https://doi.org/10.32634/0869-8155-2024-378-1-92-96

7. Kholodov V. A., Belobrov V. P., Yaroslavtseva N. V., Yashin M. A., Yudin S. A., Ermolaev N. R., Dridiger V. K., Ilyin B. S., Lazarev V. I. Influence of no-till system on the distribution of organic carbon and nitrogen by aggregate size fractions in protocalcic, endocalcic, and pantocalcic chernozems. Pochvovedenie = Eurasian Soil Science. 2021;(2):240–246. (In Russ.). DOI: https://doi.org/10.31857/S0032180X21020076

8. Belousov A. A., Belousova E. N. Dynamics of the content of organic matter of chernozems in conditions of minimization of processing in Krasnoyarsk forest-steppe. Agrokhimiya. 2020;(3):24–30. (In Russ.). DOI: https://doi.org/10.31857/S0002188120030059

9. Vasyukov P. P., Chuvarleeva G. V., Lesovaya G. M., Mnatsakanyan A. A. Effect of traditional and minimum tillage system on changing the soil fertility. Tavricheskiy vestnik agrarnoy nauki = Taurida herald of the agrarian sciences. 2016;(3):50–59. (In Russ.). URL: https://www.elibrary.ru/item.asp?id=27698341

10. Pakul A. L., Lapshinov N. A., Bozhanova G. V., Pakul V. N. Influence of various systems of soil tillage on agrophysical properties of leached chernozem. Sibirskiy vestnik sel'skokhozyaystvennoy nauki = Siberian Herald of Agricultural Science. 2019;49(3):16–23. (In Russ.). DOI: https://doi.org/10.26898/0370-8799-2019-3-2

11. Dubovik D. V., Dubovik E. V., Morozov A. N., Shumakov A. V. Influence of tillage methods on soil agrophysical properties, soybean yield and quality. Zemledelie. 2022;(2):43–48. (In Russ.). DOI: https://doi.org/10.24412/0044-3913-2022-2-43-46

12. Chernov O. S. Impact of tillage methods on agrophysical properties of grey forest soil and crop yield. Vladimirskiy zemledelets = Vladimir agricolist. 2020;(1(91)):12–17. (In Russ.). DOI: https://doi.org/10.24411/2225-2584-2020-10102

13. Vlasova O. I., Esaulko A. N., Shabaldas O. G., Drepa E. B. Development of the tillage system in the Stavropol territory. Zemledelie. 2022;(8):26–30. (In Russ.). DOI: https://doi.org/10.24412/0044-3913-2022-8-26-30

14. Mitrofanov D. V. In uence of weather conditions, basic tillage, productive moisture and nutrients on the yield of grain crops. Agrarnyy vestnik Urala = Agrarian Bulletin of the Urals. 2023;23(8):12–22. (In Russ.). DOI: https://doi.org/10.32417/1997-4868-2023-237-08-12-23

15. Lazarev V. I., Minchenko Zh. N. The influence of cultivation technologies elements on the moisture supply of spring barley crops under the conditions of the Kursk region. Zemledelie. 2023;(2):32–36. (In Russ.). DOI: https://doi.org/10.24412/0044-3913-2023-2-32-36