References
1. World Bank. (1994). Role of phosphorus in agriculture. In: Feasibility of phosphate rock as a capital investment in sub-Saharan Africa: issues and opportunities. (pp. 9-37). World Bank/IFA/MIGA.
2. Sánchez, P. A. & Salinas, J. G. (1981). Low-input technology for managing oxisols and ultisols in tropical America. Advances in agronomy, 34, 279-406. doi: 10.1016/S0065-2113(08)60889-5
3. Buresh, R. J. (1999). Phosphorus management in tropical agroforestry: current knowledge and research challenges. Agroforestry forum, 9(4), 61-65.
4. Fairhurst, T., Lefroy, R., Mutert, E. & Batjes, N. (1999). The importance, distribution and causes of phosphorus deficiency as a constraint to crop production in the tropics. Agroforestry forum, 9(4), 2-8. Retrieved from: https://www.researchgate.net/profile/Niels-Batjes/publication/228068243
5. Decree of the President of the Republic of Uzbekistan, dated October 23, 2019 No. UP-5853. Agriculture Development Strategy of the Republic of Uzbekistan for 2020-2030. Retrieved from: https://lex.uz/docs/4567337?ONDATE2=12.02.2022&action=compare [in Russian].
6. Law of the Republic of Uzbekistan, No. ZRU-538, 05/20/2019 "On pastures". Retrieved from: https://lex.uz/ru/docs/4344718?ONDATE=08/17/2021 [in Russian].
7. Dou, X., Ma, X., Zhao, C., Li, J., Yan, Yi., & Zhu, J. (2022). Risk assessment of soil erosion in Central Asia under global warming. Catena, 212, 106056. doi: 10.1016/j.catena.2022.106056
8. Chen, T., Bao, A., Jiapaer, G., Guo, H., Zheng, G., Jiang L., ... Tuerhanjiang, L. (2019). Disentangling the relative impacts of climate change and human activities on arid and semiarid grasslands in Central Asia during 1982–2015. Science of the Total Environment, 653, 1311-1325. doi: 10.1016/j.scitotenv.2018.11.058
9. Akhatov, A., & Murodova, D. (2020). Phosphorus status of irrigated soils of the Kashkadarya basin desert region and their reserve forms. Ozbekiston Zamini, 2, 20-23. Retrieved from: https://uzzamin.uz/ru/magazines/2-2020/qashqadaryo-havzasi-cho-l-mintaqasi-sug-oriladigan-tuproqlarning-fosforli-holati-va-ularni-rezerv-shakllari-uzzamin.pdf [in Uzbek].
10. Akhatov, A., Gafurov, B., Jakhonov, A., & Khalimbetov, A. (2020). Distribution of the forms of reserves of humus in typical serozems formed in geomorphological areas Tashkent-Keles. In: IOP Conference Series: Materials Science and Engineering. 869(4), 042018. IOP Publishing. doi: 10.1088/1757-899X/869/4/042018 .
11. Akhatov, A. (2021). Humus and its reserve forms. Navruz Publishing: Tashkent, 2021. [in Uzbek].
12. Akhatov, A., Buriev, S. S., Khodzhiev, A. K., & Nurmatova, V. B. (2022). Distribution of calcium and its reserve forms in irrigated meadow and sierozem-meadow soils. Plodorodie, 1(124), 24-28. doi: 10.25680/S19948603/2022/124/07 [In Russian].
13. Akhatov, A., Buriev, S. S., Nurmatova, V. B., & Zhuraev, G. A. (2022). Humus from brown soils of mountain pastures in Uzbekistan. Soils and Environment, 5(3), e174. doi: 10.31251/pos.v5i3.174 [In Russian].
14. Kadirova, D. A., Zabirov, F. M, & Ananova, K. K. (2018). Morphogenesis of soils in the middle mountains of the southern spurs of the Gissar Range and the influence of erosion processes on them. Sience Review, 3(10), 17-20. Retrieved from: https://www.academia.edu/36403019 [in Russian]/
15. Normuratov, O., Zakirov, H., Chorieva, Sh., Nurullayev, A., Abdurahmonova, Yu., & Bollyev, A. (2018). Soil-climatic conditions of Surchandarium. Universum: Chemistry and Biology, 6(48). Retrieved from: https://7universum.com/ru/nature/archive/item/5948 [in Russian].
16. Raupova, N. B. (2018). Group and fractional composition of humus in mountain brown leached soils. Uzbekiston Agrarian Fani Khabarnomasi, 1(71), 117-120. Retrieved from: http://agriculture.uz/filesarchive/AgrarJournal12018.pdf#page=117 [in Russian]
17. Li, J., Chen, H., & Zhang, C. (2020). Impacts of climate change on key soil ecosystem services and interactions in Central Asia. Ecological Indicators, 116. 106490. doi: 10.1016/j.ecolind.2020.106490
18. Genusov, A. Z., Gorbunov, B. V., & Kimberg, N. V. (1972). Classification and diagnostics of soils of Uzbekistan, In: Genesis, geography and reclamation of soils of Uzbekistan. Tashkent, 1972, (pp. 3-49). [in Russian].
19. FAO. (2014). IUSS Working Group WRB. World Reference Base for Soil Resources. International soil classification system for naming soils and creating legends for soil maps. World Soil Resources Reports, 106. Rome. Update 2015.
20. Gorbunov, B. V., Genusov, A. Z., Kimberg, N. V., Ismatov, D. R., Tursunov, Kh. T., Pervushevskaya, G. E., … Turapov, I. T. (1975). Soils of Uzbekistan, Tashkent: FAN. [in Russian].
21. Chub, V. E. (2007). Climate change and its impact on hydrometeorological processes, agro-climatic and water resources of the Republic of Uzbekistan. Tashkent: NIGMI. Retrieved from: http://www.cawater-info.net/6wwf/conference_tashkent2011/files/uzhymet.pdf [inRussian].
22. Yusupov, S., Mukimov, T., & Khamraev, A. (2010). Pasture management strategy in Uzbekistan. In: Collection of materials “Problems and solutions for the sustainable use of pasture resources”. Kazakhstan, Astana. (pp. 106-113). [in Russian]
23. Arinushkina, E. V. (1970). Procedures for soil analysis. Moscow State University Publishing. [in Russian]
24. Rozanov, B. G. (1983). Morphology of soils. Moscow: Moscow State University. [in Russian]
25. Sobolev, S. S. (1961). Protecting soils from erosion and increasing their fertility. Selkhozizdat Publishing: Moscow. [in Russian].
26. Tyurin, I. V. (1937). Soil organic matter and its role in soil formation and fertility: the study of soil humus. Selkhozgiz Publishing: Moscow. [in Russian].
27. Shaimukhamedov, M. Sh., & Voronina, K. A. (1972). Method of fractionation of organo-clay soil complexes using laboratory centrifuges. Soil science, 8, 134-138. [in Russian]
28. Methods of agrochemical, agrophysical and microbiological research in the field of cotton regions. (1963). Soyuz NIXI Publishing: Tashkent. [in Russian]
29. Gorbunov, N. I. (1978). Mineralogy and physical chemistry of soils. Moscow: Nauka. [in Russian]
30. Ivanov, I. V., & Kudeyarov, V. N. (Eds.). (2015). Evolution of soils and soil cover.Moscow: Geos. [in Russian]
31. Wakene, N., & Gebrekidan, H. (2003). Forms of phosphorus and status of available micronutrients under different land-use systems of Alfisols in Bako area of Ethiopia. Ethiopian Journal of Natural Resources, 5(1), 17-37. Retrieved from: ttps://www.researchgate.net/publication/286209270
32. Ryzhov, S. N., & Toshkuziev, M. M. (1976). The composition of the migratory series of the main chemical elements of a typical serozem. Tashkent: Fan Publishing. [in Russian]
33. Ryzhov, S. N., Saakyants, K. B. (1966). Forms of phosphoric acid compounds in irrigated soils of Central Asia. Agrochemistry, 5, 59-63. [in Russian]
34. Tokhri, B. A., Aslanov, N. N., & Tashkuziev, M. M. (1971). The content and forms of phosphates in some sierozems and takyr soils. In: Chemistry and technology of mineral fertilizers. Tashkent: FanPublishing. [in Russian]