Influence of Long-Term Application of Fertilizer Systems on Fertility of Ordinary Carbonate Chernozem in the Conditions of the Central Ciscaucasia


The paper studies the influence of systematic application recommended and estimated mineral (N69P63K45 and N141P68K60) and organomineral (manure 8 t/ha + N44P42K24and manure 15 t/ha + N87P36K7) fertilizer systems within grain-grass-hoe crop rotation on density, porosity, structural condition of soil, water stability of structural units, water permeability, change of humus content and basic nutrition elements in rainfed conditions and at irrigation in comparison with their initial content and with indicators in control option – without fertilizers and irrigation throughout long-term field experiment on ordinary carbonate chernozem in a steppe zone of the Central Ciscaucasia. It is defined that over 68 years of experiments the content of total nitrogen, phosphorus, potassium and reaction of soil solution did not change. The maximum losses of humus and available forms of nutritious elements occurred in options without fertilizers in rainfed and irrigated conditions, bulk density of soil increased, porosity and water permeability decreased. The use of fertilizers improved agrophysical and water properties of soil: its density decreased, porosity, structure index, water stability, water permeability and hygroscopicity increased. The introduction of estimated organomineral fertilizer system to the scheme of experiment since 1986 restored the humus content in soil to the reference value and ensured its positive balance (+2.6 t/ha).

[1] Sychev, V.G. (2000). Trends of agrochemical indicators of soil fertility in the European part of Russia. Moscow: CRIA. 187 p.

[2] Sychev, V.G., Schafran, S.A. (2013). Agrochemical properties of soils and efficiency of mineral fertilizers. Moscow: VNIIA, 296 p.

[3] Aliev, A.M., Sychev, V.G., Vaulina, G.I., Samoylov, L.N. (2013). Scientific bases of complex application of chemicalixation and ecological aspects of intensive agriculture. Moscow: VNIIA. 196 p.

[4] Bizhoev, V.M. (2005). Change of fertility of ordinary chernozem at 50-year use of fertilizers and irrigations. Nalchik: Polygraphy, 199 p.

[5] Prostakov, P.E. (1964). Agronomical characteristics of soils of the North Caucasus, vol. 1. Moscow: Rosselkhozizdat, pp. 11, 16, 100–102.

[6] Methodical instructions on research practice in long experiments with fertilizers, part 1. Moscow, 1975, 167 p.

[7] Methodical instructions on research practice in long experiments with fertilizers. (1983). part 2. Moscow, 171 p.

[8] Agrochemical study methods of soils, ed. 4. (1965). Moscow: Nauka, 436 p.

[9] Methodical study guide of soil structure. (1969). Kolos, 528 p.

[10] Lifanenkova, T.P., Bizhoev, R.V., Bizhoev, M.V. (2011). Monitoring of fertility of ordinary chernozem at long irrigation and application of fertilizer systems in agrolandscape agriculture of Kabardino-Balkaria. Results of long study in the system of Geographical network of experiments with fertilizers in the Russian Federation (devoted to the 70th anniversary of Geonetwork). Moscow, pp. 352–368.

[11] Lifanenkova, T.P., Bizhoev, R.V. (2018). Influence of systematic use of fertilizers in the conditions of bogara and at long irrigation on productivity of cultures, efficiency of grain-grass-hoe crop rotation and fertility of ordinary chernozem in agrolandscape agriculture of Central Ciscaucasia. Agrochemistry, no. 4, pp. 3–17.

[12] Fokin, A.D. (1994). The role of organic matter of soils in natural and agricultural ecosystems. Soil science, no. 4, pp. 40–47.

[13] Shevtsova, L.K. (1998). Humus of chernozems and its change at intensive agricultural use. Fertility of chernozems of Russia. Moscow, pp. 196–225.

[14] Edinger, E. (1980). Aktuelle Problem der landwirtschaftliche. Forschung (Linz), B. 13, pp. 21, 472.

[15] Fleg, W. (1988). Generation of model chemical precurses. Humic substances and their Role in the Envisionvent. Chichegter, A. l, 75 p.

[16] Carter, M.R. (2002). Soil, quality for sustainable land management: Organic matter and aggregation interactions that maintain soil functions. Agron. J., vol. 94, pp. 38–44.

[17] Korschens, M. (1980). Die Abbangigkeit der organischen Bodensubstanz von Standortfactoren ind acker-und pflanzenbaulichen Massnahmen, ihreBeziehungen zu Bodenei genschaften und Ertrag sowie Ableitung von ersten Bodenfruchtbarkeitske ziffern für den Gehalt des Bodens an organischen Substanz. Berlin: Akad. Landwirtsch. Wiss. DDR. Diss. B., pp. 296.

[18] Zaidelman, F.R., Shvarov, A.P. (2000). Hydrotermic regime, dynamics of organic matter and nitrogen in drained soils at different sanding modes. Archives of Agronomy and Soil science, vol. 45, pp. 123–142.

[19] Zalasiewicz, I., Williams, M., Steffen, W., Crutzen, P. (2010). The New World of the Anthropocene. Environmental Science & Technology, vol. 44(7), pp. 2228–2231.