World and domestic experience in the use of technologies has led to the need to revise approaches to soil cultivation, directions are primarily concerned with its minimization. The purpose of the research is to compare and substantiate the impact of different tillage technologies in a three-field crop rotation on the physical properties of typical chernozem. Applied materials and methods research results in a field experiment, analysis, generalization and statistical processing of data from stock and modern literary materials. The results of the study of the application of soil tillage technologies on the density and hardness of the soil, the productivity of soybeans of the central forest-steppe of Ukraine are presented. It was established that the density of the soil under "No-till" technology and minimal tillage leads to an increase in the density of the soil compared to plowing. Its increase occurred most in the 20-30 cm layer of typical chernozem with minimal tillage. Replacing the shelf with zero and minimal tillage increased soil resistance. The hardness in the soil laver 0-30 cm after disk tillage was higher than plowing by 5.5 kg/cm2, after "No-till" technology – by 8.2 kg/cm2. Soybean productivity with soil discing decreased by 5.4% compared to plowing. According to the "No-till" technology and plowing the yield of soybean grain was obtained at the same level, which is 2,19 and t/ha, respectively. A promising direction for further research is the study of the structural and aggregate composition and reserves of available moisture in the meter-thick soil laver
density, hardness, "No-till" technology, plowing, soybean
[1] Allen, K.P. (1985). Direct sowing and minimal tillage of the soil. Moscow: Agropromizdat.
[2] Baker, S.D., & Saxton, K.E. (2007). The nature of risk in no-till. In Sowing using no-till technology within soil protection farming (pp. 33-47). Dnipro.
[3] Boris, N.E. (2019). Regulation and optimization of agrophysical soil properties. Propozytsiia, (11). Retrieved from Propozitsiya.com.
[4] Vozhehova, R.A., Maliarchuk, A.S., Kotelnykov, D.I., & Reznichenko, N.D. (2021). The influence of the main tillage and sideration on soybean yield in crop rotation in the irrigated south of Ukraine. Tavriiskyi Scientific Bulletin, 118, 66-73. doi: 10.32851/2226-0099.2021.118.8.
[5] Medvedev, V.V. (2009). Hardness of soils. Kharkiv: City Typography.
[6] Medvediev, V.V. (2010). No-tillage in European countries. Kharkiv: Edena.
[7] Pabat, I.A., Shevchenko, M.S., Horbatenko, A.I., & Horobets, A.H. (2004). Minimization of soil tillage during cultivation of agricultural crops. Bulletin of Agrarian Science, (1), 11-14. .
[8] Petrychenko, V.F., Kolisnyk, S.I., Panasiuk, O.Y., Yermolaiev, M.M., & Khakhula, V.S. (2013). The effect of zero tillage on its physical properties in the right-bank forest-steppe of Ukraine. Agrobiology, 11(104), 183-186.
[9] Polovyi, V.M. (2007). Optimization of fertilization systems in modern agriculture. Rivne: Volynski Oberehy.
[10] Saiko, V.F. (2011). Scientific basis of sustainable agriculture in Ukraine. Bulletin of Agrarian Science, (1), 5-12.
[11] Saiko, V.F., & Maliienko, A.M. (2009). Minimal and No-tillage, status and prospects of their implementation in Ukraine. Handbook of the Ukrainian Farmer. Scientific and Production Annual, 178-188. Kyiv: Urozhai.
[12] Tanchyk, S.P. (2009). No-till and beyond. Modern farming systems. Kyiv: Yunivest Media.
[13] Tsentylo, L.V., & Tsiuk, O.A. (2019). Dynamics of soil hardness changes depending on its main cultivation. Bulletin of Poltava State Agrarian Academy, 1, 147-153.
[14] Tsykov, V.S. (2008). Status and prospects of the development of the soil processing system. Dnipro: ENEM.
[15] Liu, Q., Kan, Z., He, C., & Zhang, H. (2020). Effects of strategic tillage on soil physicochemical properties and grain yield in the North China Plain. Agronomy, 10(8), article number 1167. doi: 10.3390/agronomy10081167.