Research Article
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Year 2025, Volume: 14 Issue: 1, 98 - 106, 01.01.2025
https://doi.org/10.18393/ejss.1592633

Abstract

References

  • Anderson, J.P.E., 1982. Soil respiration. In. Methods of soil analysis, Part 2- Chemical and Microbiological Properties. Page, A.L., Keeney, D. R., Baker, D.E., Miller, R.H., Ellis, R. Jr., Rhoades, J.D. (Eds.). ASA-SSSA, Madison, Wisconsin, USA. pp. 831-871.
  • Anderson, J.P.E., Domsch, K.H., 1978. A physiological method for the quantative measurement of microbial biomass in soils. Soil Biology and Biochemistry 10: 215 – 221.
  • Beck, T.H., 1971. Die Messung derkKatalasen aktivität Von Böden. Zeitschrift für Pflanzenernährung und Bodenkunde 130(1): 68-81.
  • Belete, T., Yadete, E., 2023. Effect of Mono Cropping on Soil Health and Fertility Management for Sustainable Agriculture Practices: A Review. Journal of Plant Sciences 11(6): 192-197.
  • Bouyoucous, G.J., 1951. A recalibration of the hydrometer method for making mechanical analysis of soils. Agronomy Journal 43: 434-438.
  • Bremner, J.M,, 1965a. Total Nitrogen. In: Methods of Soil Analysis, Part 1 Physical and Mineralogical Methods. Black, C.A., Evans, D.D., White, J.L., Ensminger, L.E., Clark F.E. (Eds.), Soil Science Society of America. Madison, Wisconsin, USA. pp. 1149–1178.
  • Bremner, J.M,, 1965b. Inorganic Forms of Nitrogen. In: Methods of Soil Analysis, Part 1 Physical and Mineralogical Methods. Black, C.A., Evans, D.D., White, J.L., Ensminger, L.E., Clark F.E. (Eds.), Soil Science Society of America. Madison, Wisconsin, USA. pp. 1179–1237.
  • de Melo Benites, V., Dal Molin, S.J., Menezes, J.F.S., Guimarães, G.S., de Almeida Machado, P.L.O., 2022. Organomineral fertilizer is an agronomic efficient alternative for poultry litter phosphorus recycling in an acidic ferralsol. Frontiers in Agronomy 4: 785753.
  • Djalankuzov, T.D., Rubinshtejn, M.I., Sulejmenov, B.U., Oshakbaeva, Z.O., Busscher, W.J., 2004. Kazakhstan. Journal of Soil and Water Conservation 59 (2): 34A-35A.
  • Durmuş, M., Kızılkaya, R., 2022. The effect of tomato waste compost on yield of tomato and some biological properties of soil. Agronomy 12(6): 1253.
  • Funakawa, S., Nakamura, I., Akshalov, K., Kosaki, T., 2004. Soil organic matter dynamics under grain farming in Northern Kazakhstan. Soil Science and Plant Nutrition 50(8): 1211-1218.
  • Gong, P., 1997. Dehydrogenase activity in soil: A comparison between the TTC and INT assay under their optimum conditions. Soil Biology and Biochemistry 29(2): 211-214.
  • Hart, P.B.S., August, J.A., West, A.W., 1989. Long-term consequences of topsoil mining on select biological and physical characteristics of two New Zealand loessial soils under grazed pasture. Land Degradation and Rehabilitation 1: 77-88.
  • Hazelton, P., Murphy, B., 2007. Interpreting soil test results. What do the numbers mean? CSIRO Publishing, Melbourne. Australia. 152p.
  • Heald, W.R., 1965. Calcium and Magnesium. In: Methods of soil analysis. Part 2. Chemical and microbiological properties. Black, C.A., Evans, D.D., White, J.L., Ensminger, L.E., Clark F.E. (Eds.), Soil Science Society of America. Madison, Wisconsin, USA. pp. 999-1010.
  • Insam, H., Parkinson, D., Domsch, K.H., 1989. Influence of macroclimate on soil microbial biomass. Soil Biology and Biochemistry 21: 211-221.
  • Jones, J.B., 2001. Laboratory guide for conducting soil tests and plant analyses. CRC Press, New York, USA. 363p.
  • Kalimov, N., Bodryy, K., Shilo, E., Kaldybaev, D., Bodraya, M., 2024. Impact of tillage and crop rotations on soil organic matter content in Northern Kazakhstan's chernozem soils: A 10-year study (2011-2021). Eurasian Journal of Soil Science 13(1): 35 - 42.
  • Karbozova–Saljnikov, E., Funakawa, S., Akhmetov, K., Kosaki, T., 2004. Soil organic matter status of Chernozem soil in North Kazakhstan: effects of summer fallow. Soil Biology and Biochemistry 36(9): 1373-1381.
  • Kızılkaya, R., 2008. Dehydrogenase activity in Lumbricus terrestris casts and surrounding soil affected by addition of different organic wastes and Zn. Bioresource Technology 99(5): 946–953. Kızılkaya, R., Aşkın, T., Bayraklı, B., Sağlam, M., 2004. Microbiological characteristics of soils contaminated with heavy metals. European Journal of Soil Biology 40(2): 95-102.
  • Kızılkaya, R., Hepşen, Ş., 2007. Microbiological properties in earthworm Lumbricus terrestris L. cast and surrounding soil amended with various organic wastes. Communication in Soil Science and Plant Analysis 38(19-20): 2861-2876.
  • Kusherbayev, S., Amanzhol, I., Seilkhanova, Zh., Duanbekova, G., Kapparova, T., 2023. The influence of soil-drying inputs on the soil and the productivity of crops. Scientific Horizons 26(12): 76-87.
  • Lindsay, W.L., Norvell, W.A., 1978. Development of a DTPA soil test for zinc, iron, manganese, and copper. Soil Science Society of America Journal 42(3): 421-428.
  • Loeppert, R.H., Suarez, D.L., 1996. Carbonate and gypsum. In: Methods of Soil Analysis. Part 3 Chemical Methods, 5.3. Sparks, D., Page, A., Helmke, P., Loeppert, R., Soltanpour, P.N., Tabatabai, M.A., Johnston C.T., Sumner M.E. (Eds.). American Society of Agronomy, Madison, Wisconsin, USA, pp. 437-475.
  • Meli, S., Porto, M., Belligno, A., Bufo, S.A., Mazzatura, A., Scapa, A., 2002. Influence of irrigation with lagooned urban wastewater on chemical and microbiological soil parameters in a citrus orchard under Mediterranean condition. Science of The Total Environment 285: 69-77.
  • Obbard, J.P., 2001. Ecotoxicological assessment of heavy metals in sewage sludge amended soils. Applied Geochemistry 16: 1405-1411.
  • Olsen,S.R., Dean, L.A., 1965. Phosphorus. In: Methods of soil analysis. Part 2. Chemical and microbiological properties. Black, C.A., Evans, D.D., White, J.L., Ensminger, L.E., Clark F.E. (Eds.), Soil Science Society of America. Madison, Wisconsin, USA. pp. 1035-1049.
  • Paré, M.C., Allaire, S.E., Parent, L.E., Khiari, L., 2010. Variation in the physical properties of organo-mineral fertilisers with proportion of solid pig slurry compost. Biosystems Engineering 106(3): 243-249.
  • Pascual, J.A., Hernandez, T., Garcia, C., Ayuso, M., 1988. Enzymatic activities in an arid soil amend with urban organic wastes: laboratory experiment. Bioresource Technology 64: 131-138.
  • Peech, M., 1965. Hydrogen-Ion Activity. In: Methods of soil analysis. Part 2. Chemical and microbiological properties. Black, C.A., Evans, D.D., White, J.L., Ensminger, L.E., Clark F.E. (Eds.), Soil Science Society of America. Madison, Wisconsin, USA. pp. 914-926.
  • Pepper, I.L., Gerba, C.P., Brendecke, J.W., 1995. Environmental microbiology: a laboratory manual. Academic Press Inc. New York, USA.
  • Pratt, P.F., 1965. Potassium. In: Methods of soil analysis. Part 2. Chemical and microbiological properties. Black, C.A., Evans, D.D., White, J.L., Ensminger, L.E., Clark F.E. (Eds.), Soil Science Society of America. Madison, Wisconsin, USA. pp. 1022-1030.
  • Rolinski, S., Prishchepov, A.V., Guggenberger, G., Bischoff, N., Kurganova, I., Schierhorn, F., Müller, D., Müller, C., 2021. Dynamics of soil organic carbon in the steppes of Russia and Kazakhstan under past and future climate and land use. Regional Environmental Change 21: 73.
  • Rowell, D.L., 1996. Soil Science: methods and applications. Longman, UK. 350p.
  • ŠantruuČková, H., SiraŠicraba, M., 1991. On the relationships between specific respiration activity and microbial biomass in soils. Soil Biology and Biochemistry 23(6): 525–532.
  • Šarauskis, E., Naujokienė, V., Lekavičienė, K., Kriaučiūnienė, Z., Jotautienė, E., Jasinskas, A., Zinkevičienė, R., 2021. Application of granular and non-granular organic fertilizers in terms of energy, environmental and economic efficiency. Sustainability 13: 9740.
  • Smith, J.L., Paul, E.A., 1990. Significance of soil microbial biomass estimation: Soil Biochemistry. Bollag, J.W., Stotzky, G. (Eds.). Volume 6, Marcel Dekker Inc. New York, USA. pp. 357-396.
  • Sobreira, H.A., Ferreira, M.V., Faria, A.M., de Assunção, R.M.N., 2024. Commercial organomineral fertilizer produced through granulation of a blend of monoammonium phosphate and pulp and paper industry waste post-composting. Industrial Crops and Products 222: 119816.
  • Toor, M.D., Kızılkaya, R., Anwar, A., Koleva, L., Eldesoky, G.E., 2024. Effects of vermicompost on soil microbiological properties in lettuce rhizosphere: An environmentally friendly approach for sustainable green future. Environmental Research 243: 117737.
  • USDA, 2001. Soil Quality Test Kit Guide. United States Department of Agriculture, Agricultural Research Service, Natural Resources Conservation Service, Soil Quality Institute. USA. 82p. Available at [Access date: : 11.05.2024]: https://www.nrcs.usda.gov/sites/default/files/2022-10/Soil%20Quality%20Test%20Kit%20Guide.pdf
  • Walkley, A., Black, C.A., 1934. An examination of the Degtjareff method for determining soil organic matter and a proposed modification of the chromic acid titration method. Soil Science 37(1): 29–38.
  • Wardle, D.A., Ghani, A., 1995. A critique of the microbial metabolic quotient (qCO2) as a bioindicator of disturbance and ecosystem development. Soil Biology and Biochemistry 27: 1601-1610.
  • Yapiyev, V., Gilman, C., Kabdullayeva, T., Suleimenova, A., Shagadatova, A., Duisembay, A., Naizabekov, S., Mussurova, S., Sydykova, K., Raimkulov, I., Kabimoldayev, I., Abdrakhmanova, A., Omarkulova, S., Nurmukhambetov,D., Kudarova, A., Malgazhdar, D., Schönbach, C., Inglezakis, V., 2018. Top soil physical and chemical properties in Kazakhstan across a north-south gradient. Scientific Data 5: 180242.

Sustainable nutrient management and agricultural productivity in chernozem soils of the Kostanay Region, Kazakhstan

Year 2025, Volume: 14 Issue: 1, 98 - 106, 01.01.2025
https://doi.org/10.18393/ejss.1592633

Abstract

Chernozem soils, known for their high organic matter and fertility, are crucial for agricultural productivity in northern Kazakhstan's Kostanay region. This study evaluated the physical, chemical, and biological properties of these soils to assess their suitability for crop production and propose sustainable management practices. Soil samples were collected from 0-20 cm depths across various locations to represent the region's main nutrient profile. Physical analyses included texture determination, while chemical analyses measured pH, electrical conductivity (EC), organic matter, and nutrient levels (N, P, K, Ca, Mg, Fe, Cu, Zn, and Mn) using standard methods. Biological assessments focused on microbial biomass carbon (Cmic), basal soil respiration (BSR), dehydrogenase and catalase activities, as well as Cmic: Corg and metabolic quotient (qCO₂) ratios. Results indicated high organic matter content (mean 4.49%), sufficient total nitrogen (>0.25%), and high levels of potassium and calcium. However, phosphorus levels were low (<8 mg kg⁻¹), marking it as a key limiting nutrient. Biological analysis revealed robust microbial activity, with high catalase activity supporting aerobic processes, but low Cmic: Corg and qCO₂ values suggested limited microbial biomass, potentially slowing organic matter decomposition. This trait, while preserving organic matter, may restrict nutrient mineralization, impacting crop nutrient availability. Based on these findings, we recommend prioritizing phosphorus and potassium fertilization integrated with organic matter management to balance nutrient levels and enhance crop productivity. The application of liquid or solid organic or organomineral fertilizers is suggested to maintain soil organic matter and promote sustainable practices. Additionally, foliar applications of manganese and iron, along with nitrogen supplementation, are recommended to address micronutrient deficiencies and support plant growth. Overall, sustainable management of Chernozem soils in Kostanay requires balanced nutrient management, organic matter preservation, and targeted micronutrient interventions to ensure long-term fertility and productivity.

References

  • Anderson, J.P.E., 1982. Soil respiration. In. Methods of soil analysis, Part 2- Chemical and Microbiological Properties. Page, A.L., Keeney, D. R., Baker, D.E., Miller, R.H., Ellis, R. Jr., Rhoades, J.D. (Eds.). ASA-SSSA, Madison, Wisconsin, USA. pp. 831-871.
  • Anderson, J.P.E., Domsch, K.H., 1978. A physiological method for the quantative measurement of microbial biomass in soils. Soil Biology and Biochemistry 10: 215 – 221.
  • Beck, T.H., 1971. Die Messung derkKatalasen aktivität Von Böden. Zeitschrift für Pflanzenernährung und Bodenkunde 130(1): 68-81.
  • Belete, T., Yadete, E., 2023. Effect of Mono Cropping on Soil Health and Fertility Management for Sustainable Agriculture Practices: A Review. Journal of Plant Sciences 11(6): 192-197.
  • Bouyoucous, G.J., 1951. A recalibration of the hydrometer method for making mechanical analysis of soils. Agronomy Journal 43: 434-438.
  • Bremner, J.M,, 1965a. Total Nitrogen. In: Methods of Soil Analysis, Part 1 Physical and Mineralogical Methods. Black, C.A., Evans, D.D., White, J.L., Ensminger, L.E., Clark F.E. (Eds.), Soil Science Society of America. Madison, Wisconsin, USA. pp. 1149–1178.
  • Bremner, J.M,, 1965b. Inorganic Forms of Nitrogen. In: Methods of Soil Analysis, Part 1 Physical and Mineralogical Methods. Black, C.A., Evans, D.D., White, J.L., Ensminger, L.E., Clark F.E. (Eds.), Soil Science Society of America. Madison, Wisconsin, USA. pp. 1179–1237.
  • de Melo Benites, V., Dal Molin, S.J., Menezes, J.F.S., Guimarães, G.S., de Almeida Machado, P.L.O., 2022. Organomineral fertilizer is an agronomic efficient alternative for poultry litter phosphorus recycling in an acidic ferralsol. Frontiers in Agronomy 4: 785753.
  • Djalankuzov, T.D., Rubinshtejn, M.I., Sulejmenov, B.U., Oshakbaeva, Z.O., Busscher, W.J., 2004. Kazakhstan. Journal of Soil and Water Conservation 59 (2): 34A-35A.
  • Durmuş, M., Kızılkaya, R., 2022. The effect of tomato waste compost on yield of tomato and some biological properties of soil. Agronomy 12(6): 1253.
  • Funakawa, S., Nakamura, I., Akshalov, K., Kosaki, T., 2004. Soil organic matter dynamics under grain farming in Northern Kazakhstan. Soil Science and Plant Nutrition 50(8): 1211-1218.
  • Gong, P., 1997. Dehydrogenase activity in soil: A comparison between the TTC and INT assay under their optimum conditions. Soil Biology and Biochemistry 29(2): 211-214.
  • Hart, P.B.S., August, J.A., West, A.W., 1989. Long-term consequences of topsoil mining on select biological and physical characteristics of two New Zealand loessial soils under grazed pasture. Land Degradation and Rehabilitation 1: 77-88.
  • Hazelton, P., Murphy, B., 2007. Interpreting soil test results. What do the numbers mean? CSIRO Publishing, Melbourne. Australia. 152p.
  • Heald, W.R., 1965. Calcium and Magnesium. In: Methods of soil analysis. Part 2. Chemical and microbiological properties. Black, C.A., Evans, D.D., White, J.L., Ensminger, L.E., Clark F.E. (Eds.), Soil Science Society of America. Madison, Wisconsin, USA. pp. 999-1010.
  • Insam, H., Parkinson, D., Domsch, K.H., 1989. Influence of macroclimate on soil microbial biomass. Soil Biology and Biochemistry 21: 211-221.
  • Jones, J.B., 2001. Laboratory guide for conducting soil tests and plant analyses. CRC Press, New York, USA. 363p.
  • Kalimov, N., Bodryy, K., Shilo, E., Kaldybaev, D., Bodraya, M., 2024. Impact of tillage and crop rotations on soil organic matter content in Northern Kazakhstan's chernozem soils: A 10-year study (2011-2021). Eurasian Journal of Soil Science 13(1): 35 - 42.
  • Karbozova–Saljnikov, E., Funakawa, S., Akhmetov, K., Kosaki, T., 2004. Soil organic matter status of Chernozem soil in North Kazakhstan: effects of summer fallow. Soil Biology and Biochemistry 36(9): 1373-1381.
  • Kızılkaya, R., 2008. Dehydrogenase activity in Lumbricus terrestris casts and surrounding soil affected by addition of different organic wastes and Zn. Bioresource Technology 99(5): 946–953. Kızılkaya, R., Aşkın, T., Bayraklı, B., Sağlam, M., 2004. Microbiological characteristics of soils contaminated with heavy metals. European Journal of Soil Biology 40(2): 95-102.
  • Kızılkaya, R., Hepşen, Ş., 2007. Microbiological properties in earthworm Lumbricus terrestris L. cast and surrounding soil amended with various organic wastes. Communication in Soil Science and Plant Analysis 38(19-20): 2861-2876.
  • Kusherbayev, S., Amanzhol, I., Seilkhanova, Zh., Duanbekova, G., Kapparova, T., 2023. The influence of soil-drying inputs on the soil and the productivity of crops. Scientific Horizons 26(12): 76-87.
  • Lindsay, W.L., Norvell, W.A., 1978. Development of a DTPA soil test for zinc, iron, manganese, and copper. Soil Science Society of America Journal 42(3): 421-428.
  • Loeppert, R.H., Suarez, D.L., 1996. Carbonate and gypsum. In: Methods of Soil Analysis. Part 3 Chemical Methods, 5.3. Sparks, D., Page, A., Helmke, P., Loeppert, R., Soltanpour, P.N., Tabatabai, M.A., Johnston C.T., Sumner M.E. (Eds.). American Society of Agronomy, Madison, Wisconsin, USA, pp. 437-475.
  • Meli, S., Porto, M., Belligno, A., Bufo, S.A., Mazzatura, A., Scapa, A., 2002. Influence of irrigation with lagooned urban wastewater on chemical and microbiological soil parameters in a citrus orchard under Mediterranean condition. Science of The Total Environment 285: 69-77.
  • Obbard, J.P., 2001. Ecotoxicological assessment of heavy metals in sewage sludge amended soils. Applied Geochemistry 16: 1405-1411.
  • Olsen,S.R., Dean, L.A., 1965. Phosphorus. In: Methods of soil analysis. Part 2. Chemical and microbiological properties. Black, C.A., Evans, D.D., White, J.L., Ensminger, L.E., Clark F.E. (Eds.), Soil Science Society of America. Madison, Wisconsin, USA. pp. 1035-1049.
  • Paré, M.C., Allaire, S.E., Parent, L.E., Khiari, L., 2010. Variation in the physical properties of organo-mineral fertilisers with proportion of solid pig slurry compost. Biosystems Engineering 106(3): 243-249.
  • Pascual, J.A., Hernandez, T., Garcia, C., Ayuso, M., 1988. Enzymatic activities in an arid soil amend with urban organic wastes: laboratory experiment. Bioresource Technology 64: 131-138.
  • Peech, M., 1965. Hydrogen-Ion Activity. In: Methods of soil analysis. Part 2. Chemical and microbiological properties. Black, C.A., Evans, D.D., White, J.L., Ensminger, L.E., Clark F.E. (Eds.), Soil Science Society of America. Madison, Wisconsin, USA. pp. 914-926.
  • Pepper, I.L., Gerba, C.P., Brendecke, J.W., 1995. Environmental microbiology: a laboratory manual. Academic Press Inc. New York, USA.
  • Pratt, P.F., 1965. Potassium. In: Methods of soil analysis. Part 2. Chemical and microbiological properties. Black, C.A., Evans, D.D., White, J.L., Ensminger, L.E., Clark F.E. (Eds.), Soil Science Society of America. Madison, Wisconsin, USA. pp. 1022-1030.
  • Rolinski, S., Prishchepov, A.V., Guggenberger, G., Bischoff, N., Kurganova, I., Schierhorn, F., Müller, D., Müller, C., 2021. Dynamics of soil organic carbon in the steppes of Russia and Kazakhstan under past and future climate and land use. Regional Environmental Change 21: 73.
  • Rowell, D.L., 1996. Soil Science: methods and applications. Longman, UK. 350p.
  • ŠantruuČková, H., SiraŠicraba, M., 1991. On the relationships between specific respiration activity and microbial biomass in soils. Soil Biology and Biochemistry 23(6): 525–532.
  • Šarauskis, E., Naujokienė, V., Lekavičienė, K., Kriaučiūnienė, Z., Jotautienė, E., Jasinskas, A., Zinkevičienė, R., 2021. Application of granular and non-granular organic fertilizers in terms of energy, environmental and economic efficiency. Sustainability 13: 9740.
  • Smith, J.L., Paul, E.A., 1990. Significance of soil microbial biomass estimation: Soil Biochemistry. Bollag, J.W., Stotzky, G. (Eds.). Volume 6, Marcel Dekker Inc. New York, USA. pp. 357-396.
  • Sobreira, H.A., Ferreira, M.V., Faria, A.M., de Assunção, R.M.N., 2024. Commercial organomineral fertilizer produced through granulation of a blend of monoammonium phosphate and pulp and paper industry waste post-composting. Industrial Crops and Products 222: 119816.
  • Toor, M.D., Kızılkaya, R., Anwar, A., Koleva, L., Eldesoky, G.E., 2024. Effects of vermicompost on soil microbiological properties in lettuce rhizosphere: An environmentally friendly approach for sustainable green future. Environmental Research 243: 117737.
  • USDA, 2001. Soil Quality Test Kit Guide. United States Department of Agriculture, Agricultural Research Service, Natural Resources Conservation Service, Soil Quality Institute. USA. 82p. Available at [Access date: : 11.05.2024]: https://www.nrcs.usda.gov/sites/default/files/2022-10/Soil%20Quality%20Test%20Kit%20Guide.pdf
  • Walkley, A., Black, C.A., 1934. An examination of the Degtjareff method for determining soil organic matter and a proposed modification of the chromic acid titration method. Soil Science 37(1): 29–38.
  • Wardle, D.A., Ghani, A., 1995. A critique of the microbial metabolic quotient (qCO2) as a bioindicator of disturbance and ecosystem development. Soil Biology and Biochemistry 27: 1601-1610.
  • Yapiyev, V., Gilman, C., Kabdullayeva, T., Suleimenova, A., Shagadatova, A., Duisembay, A., Naizabekov, S., Mussurova, S., Sydykova, K., Raimkulov, I., Kabimoldayev, I., Abdrakhmanova, A., Omarkulova, S., Nurmukhambetov,D., Kudarova, A., Malgazhdar, D., Schönbach, C., Inglezakis, V., 2018. Top soil physical and chemical properties in Kazakhstan across a north-south gradient. Scientific Data 5: 180242.
There are 43 citations in total.

Details

Primary Language English
Subjects Soil Sciences and Plant Nutrition (Other)
Journal Section Articles
Authors

Zhenis Zharlygassov This is me 0009-0005-5797-4871

Niyazbek Kalimov This is me 0000-0003-3519-7141

Assiya Ansabayeva This is me 0000-0002-2110-2650

Zhaxylyk Zharlygassov This is me 0009-0004-5329-5110

Elena Moskvicheva This is me 0009-0008-4404-1927

Rahila İslamzade This is me

Abdurrahman Ay 0000-0001-5450-4106

İzzet Akça 0000-0001-9617-8820

Rıdvan Kızılkaya

Publication Date January 1, 2025
Submission Date May 11, 2024
Acceptance Date November 21, 2024
Published in Issue Year 2025 Volume: 14 Issue: 1

Cite

APA Zharlygassov, Z., Kalimov, N., Ansabayeva, A., Zharlygassov, Z., et al. (2025). Sustainable nutrient management and agricultural productivity in chernozem soils of the Kostanay Region, Kazakhstan. Eurasian Journal of Soil Science, 14(1), 98-106. https://doi.org/10.18393/ejss.1592633