Fertility of Leached Chernozem and Productivity of Winter Wheat Depending on Fertilizers in a Forest-steppe Zone


The study revealed optimum doses, NPK combinations, terms and methods of fertilizer application, which provides for highly efficient use of nutrients thus maintaining the fertility of soils, high efficiency and high quality of winter wheat grains. The application of some mineral fertilizers was followed by some decrease (trend) of humus content in relation to control samples. The option manure+NPK was characterized by relative stabilization of humus condition of soil, and concerning the average humus content this option exceeded the control one by 0.32 %. Fertilizers clearly improved the nutrient status of leached chernozem under winter wheat enriching its 0–40 cm layer with mobile nitrogen (NН4+ and NO3), phosphorus and potassium respectively by 6.0–9.2; 3.2–9.4; 9.3–36.7 and 21.5–32.8 mg/kg of soil on average per vegetation. Options with high doses of mineral fertilizers were characterized by the largest content. The application of fertilizers under winter wheat in N50−150P40−120K40−120 doses increased grain yield from 0.22 to 2.32 t/ha (6.9–72.5 %). The estimated option was the best.

[1] Dzanagov, S.Kh., Lazarov, T.K., Basiev, A.E., Kanukov, Z.T., Khadikov, A.Y. (2014). Influence of Sustained Fertilization on the Amount of Humus and Effective Fertility of Leached Chernozem. American-Eurasian Journal of Sustainable Agriculture, no. 8(9), pp. 35–40.

[2] Gospodarenko, G.N., Lubich, V.V., Matvienko, N.P. (2018). Quality of wheat winter grains after long (since 1965) use of fertilizers in field crop rotation. Relevant scientific study in modern world, no. 1–5(33), pp. 134–138.

[3] Sheudzhen, A.Kh. (2015). Chernozem Agrochemistry. Maykop: JSC Poligraf-Yug, pp. 232.

[4] Sheudzhen, A.Kh., Neshchadim, N.N., Onishchenko, L.M. (2011). Organic matter of soil and its ecological functions. Krasnodar: KubSAU, pp. 202.

[5] Bezuglova, O.S. (2001). Humus condition of soils of the South of Russia. Rostov-on- Don: NCRC HS, pp. 221.

[6] Dzanagov, S.Kh., Basiev, A.E., Kanukov, Z.T., Lazarov, T.K. (2015). Dynamics of humus content in leached chernozem under the influence of fertilizers. News of Gorsky State Agricultural University, vol. 52, no. 2, pp. 19–24.

[7] Spiridonov, Yu.I., Sokolov, M.S., Bosak, G.S. (2017). Optimized production technology of winter wheat in Central Nonblack Soil Zone of the Russian Federation. Achievements of science and technology of agrarian and industrial complex, no. 6, pp. 27–30.

[8] Abashev, V.D., Popov, F.A., Noskov, E.N., Zhuk, S.N. (2017). Influence of mineral fertilizers on the productivity of spring wheat. Scientific and practical journal. Perm Agrarian Bulletin, no. 1(17), pp. 7–11.

[9] Skorobogatova, A.S., Filipenko, N.N., Bedirkhanov, M.A. (2017). Efficiency of winter wheat on leached chernozem in the conditions of Western Ciscaucasia. Polythematic network electronic scientific journal of Kuban State Agricultural University, no. 125, pp. 724–737.

[10] Dzanagov, S.Kh., Lazarov, T.K., Kaloev, B.S., Kubatieva, Z.A., Kalagova, R.V. (2019). Effect of Long-Term Fertilizers on Growth Indicator, Yield and Quality of Winter Wheat Grain. Agrochemistry, no. 4, pp. 31–38.