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Krasowicz, S., Oleszek, W., Horabik, J., Debicki, R. Jankowiak, J., Stuczynski, T. & Jadczyszyn, J. (2011). Racjonalne gospodarowanie środowiskiem glebowym Polski. Pol. J. Agron. 7, 43–58.Search in Google Scholar
Skłodowski, P. & Bielska, A. (2009). Właściwości i urodzajność gleb Polski - podstawą kształtowania relacji rolno-środowiskowych. Water Environ. Rural Areas. 9(4), 203–14.Search in Google Scholar
Liu, M., Wang, C., Wang, F. & Xie, Y. (2019). Vermicompost and humic fertilizer improve coastal saline soil by regulating soil aggregates and the bacterial community. Arch. Agron. Soil Sci. 65(3), 281–293. DOI: 10.1080/03650340.2018.1498083.Search in Google Scholar
Olk, D.C., Bloom, P.R., Perdue, E.M., McKnight, D.M., Chen, Y., Farenhorst, A., Senesi, N., Chin, Y.P., Schmitt-Kopplin, P., Hertkorn, N. & Harir, M. (2019). Environmental and Agricultural Relevance of Humic Fractions Extracted by Alkali from Soils and Natural Waters. J. Environ. Qual. 48(2), 217–232. DOI: 10.2134/JEQ2019.02.0041.Search in Google Scholar
Šimanský, V., Juriga, M., Jonczak, J., Uzarowicz, Ł. & Stępień, W. (2019). How relationships between soil organic matter parameters and soil structure characteristics are affected by the long-term fertilization of a sandy soil. Geoderma. 342, 75–84. DOI: 10.1016/J.GEODERMA.2019.02.020.Search in Google Scholar
Bhatt, P. & Singh, V.K. (2022). Effect of humic acid on soil properties and crop production – A review. Indian J. Agric. Sci. 92(12), 1423–1430. DOI: 10.56093/ijas.v92i12.124948.Search in Google Scholar
Deepamala, M., Pooja, M., Sucheta, S. & Alok, K. (2017). Humic acid rich vermicompost promotes plant growth by improving microbial community structure of soil as well as root nodulation and mycorrhizal colonization in the roots of Pisum sativum. Appl. Soil Ecol. 110, 97–108. DOI: 10.1016/j. apsoil.2016.10.008.Search in Google Scholar
Knyazev, D.A., Fokin, A.D. & Knyazev, V.D. (2002). The role of humic substances in formation of ion-conductive soil structures. Eurasian Soil Sci. 35(2), 132–8.Search in Google Scholar
Lumactud, R.A., Gorim, L.Y. & Thilakarathna, M.S. (2022). Impacts of humic-based products on the microbial community structure and functions toward sustainable agriculture. Front. Sustain. Food Syst. 6. DOI: 10.3389/FSUFS.2022.977121/BIBTEX.Search in Google Scholar
Ampong, K., Thilakaranthna, M.S. & Gorim, L.Y., (2022). Understanding the Role of Humic Acids on Crop Performance and Soil Health. Front. Agron. 10, 4. DOI: 10.3389/fagro.2022.848621.Search in Google Scholar
Mecozzi, M., Amici, M., Pietrantonio, E. & Romanelli, G. (2002). An ultrasound assisted extraction of the available humic substance from marine sediments. Ultrason. Sonochem. 9(1), 11–18. DOI: 10.1016/S1350-4177(01)00098-0.Search in Google Scholar
Raposo, J.C., Villanueva, U., Olivares, M., & Madariaga, J.M. (2016). Determination of humic substances in sediments by focused ultrasound extraction and ultraviolet visible spectroscopy. Microchem. J. 128, 26–33. DOI: 10.1016/J. MICROC.2016.04.004.Search in Google Scholar
Moreda-Piñeiro, A., Bermejo-Barrera, A. & Bermejo-Barrera, P. New trends involving the use of ultrasound energy for the extraction of humic substances from marine sediments. Anal. Chim. Acta. 524, 97–107. DOI: 10.1016/j.aca.2004.03.096.Search in Google Scholar
Javed, S., Kohli, K. & Ali, M. (2013). Microwave-Assisted Extraction of Fulvic Acid from a Solid Dosage Form: A Statistical Approach. J. Pharm. Innov., 8(3), 175–186. DOI: 10.1007/s12247-013-9157-y.Search in Google Scholar
Chemat, F., Rombaut, N., Sicaire, A.G., Meullemiestre, A., Fabiano-Tixier, A.S. & Abert-Vian, M. (2017). Ultrasound assisted extraction of food and natural products. Mechanisms, techniques, combinations, protocols and applications. A review. Ultrason Sonochem. 34, 540–560, DOI: 10.1016/j. ultsonch.2016.06.035.Search in Google Scholar
Cravotto, G., Mariatti, F., Gunjevic, V., Secondo, M., Villa, M., Parolin, J. & Cavaglià, G. (2018). Pilot scale cavitational reactors and other enabling technologies to design the industrial recovery of polyphenols from agro-food by-products, a technical and economical overview. Foods. 7(9). DOI: 10.3390/foods7090130.Search in Google Scholar
Karčauskienė, D., Repšienė, R., Ambrazaitienė, D., Mockevičienė, I., Šiaudinis, G. & Skuodienė, R. (2019). A complex assessment of mineral fertilizers with humic substances in an agroecosystem of acid soil. Zemdirbyste 106(4), 307–14. DOI: 10.13080/Z-A.2019.106.039.Search in Google Scholar
Swift, R.S. (1996). Organic matter characterization. In D. L. Sparks et al. (eds) Methods of soil analysis. Part 3. Chemical Methods (pp. 1018-1020). Madison, WI: Soil Science Society of America.Search in Google Scholar
Nieweś, D., Huculak-Mączka, M., Braun-Giwerska, M., Marecka, K., Tyc, A., Biegun, M., Hoffmann, K. & Hoffmann J. (2022). Ultrasound-Assisted Extraction of Humic Substances from Peat: Assessment of Process Efficiency and Products’ Quality. Molecules 27(11), 3413. DOI: 10.3390/molecules27113413.Search in Google Scholar
Standard Association of Poland. (1993). Polish standard: Fertilizers – determination of total nitrogen by distillation method. PN-C-87085.Search in Google Scholar
Standard Association of Poland. (1988). Polish standard: Fertilizers –test methods for phosphate content. PN-C-87015.Search in Google Scholar
Fuchsman, C.H. (1980). Peat industrial chemistry and technology. London, United Kingdom: Academic Press Inc.Search in Google Scholar
Huat, B.K., Prasad, A., Asadi, A. & Kazemian, S. (2014). Geotechnics of organic soils and peat. Leiden, Nederland: CRC Press.Search in Google Scholar
Dettmann, U., Kraft, N.N., Rech, R., Heidkamp, A. & Tiemeyer, B. (2021) Analysis of peat soil organic carbon, total nitrogen, soil water content and basal respiration: Is there a ‘best’ drying temperature? Geoderma 403, 115231. DOI: 10.1016/j.geoderma.2021.115231.Search in Google Scholar
Jonczak, J. (2013). Effect of peat samples drying on measured content of carbon and nitrogen fractions. Soil Sci. Ann. 64(4), 130–134. DOI: 10.2478/ssa-2013-0020.Search in Google Scholar
Paleckiene, R., Navikaite, R. & Slinksiene R. (2021). Peat as a raw material for plant nutrients and humic substances. Sustainability 13, 6354. DOI: 10.3390/su13116354.Search in Google Scholar
Asing, J. Wong, N. & Seng, L. (2009). Optimization of extraction method and characterization of humic acid derived from coals and composts (Pengoptimuman kaedah pengekstrakan dan pencirian asid humik daripada arang batu dan kompos). J. Trop. Agric. Food Sci. 37(2), 211–223.Search in Google Scholar
Doskočil, L., Burdíková-Szewieczková, J., Enev, V., Kalina, L. & Wasserbauer, J. (2018). Spectral characterization and comparison of humic acids isolated from some European lignites. Fuel 213, 123–132, DOI: 10.1016/J.FUEL.2017.10.114.Search in Google Scholar
Chang, R.R., Mylotte, R., Hayes, M.H.B., Mclnerney, R. & Tzou, Y.M. (2014). A comparison of the compositional differences between humic fractions isolated by the IHSS and exhaustive extraction procedures. Naturwissenschaften, 101(3), 197–209. DOI: 10.1007/S00114-013-1140-4.Search in Google Scholar
Fernandes, A.N. Giovanela, M., Esteves, V.I. & Sierra, M.M.S. (2010). Elemental and spectral properties of peat and soil samples and their respective humic substances. J. Mol. Struct. 971(1–3), 33–38. DOI: 10.1016/J.MOLSTRUC.2010.02.069.Search in Google Scholar
Garcia, D., Cegarra, J., Roig, A. & Abad, M. (1994). Effects of the extraction temperature on the characteristics of a humic fertilizer obtained from lignite. Bioresour. Technol. 47(2), 103–106. DOI: 10.1016/0960-8524(94)90106-6.Search in Google Scholar
Wali, A., Ben Salah, I., Zerrouki, M., Choukchou-Braham, A., Kamoun, Y. & Ksibi, M. (2019). A novel humic acid extraction procedure from Tunisian lignite. Euro. Mediterr. J. Environ. Integr. 4(1), 1–9. DOI: 10.1007/S41207-019-0115-Z/FIGURES/5.Search in Google Scholar