Mechanization in agriculture & Conserving of the resources
Vol. 68 (2024), Issue 3, pg(s) 108-111

CONSERVING OF THE RESOURCES

Low intensity fertilization with organic and complex mineral fertilizers and their influence on the organic matter content of Haplic Chernozems

  • 1 Dobrudzha Agricultural Institute (DAI) – General Toshevo Agricultural Academy, Sofia

Abstract

The use of complex mineral, organo-mineral and organic fertilizers on Haplic Chernozems for 8 years leads to changes in the composition of soil organic matter. Certainly the organic fertilizer ExcellOrga and its combination with the complex mineral fertilizer Suprefos increase the content of soil organic carbon, and humic acids, related with calcium. A positive trend is also the increase of carbon in insoluble residue. A statistically reliable positive influence of organic and organo-mineral fertilization on individual groups and fractions compared to those in the control variant was established. The trend is especially well expressed on the carbon values of humic acids and those related to calcium. This leads to a sustainable level of humification and an increase in the share of agronomically valuable groups and fractions in the organic carbon of the soil.

Keywords

References

  1. Popov A. The Humic Substances: Properties, Construction, Formation. E. I. Ermakov (Ed.), Saint Petersburg University Press, Saint Petersburg. 2004, 248 p. (in Russian).
  2. Ficheva E., K. Chakalov. Agricultural practices for soil carbon sequestration. In: Proc. 13th RAMIRAN International Conference “Potential for Simple technology solutions in organic manure management” (Ed. V. Koutev). Albena, Bulgaria, June 2008, ISBN 978- 954-9067671-6- 3, pp 479–482.
  3. Nankova M., I. Kalinov,. Influence of tillage systems on the humus condition of slightly leached chernozem in the Dobruja region. Soil science, agrochemistry and ecology, v. XXVII, No. 2,1992, 40-43
  4. Nankova M., P. Yankov, E. Penchev, R. Djendova. Humus fraction composition of the slightly leached chernozem in cheseling according to the size of soil units. In: 11 th World fertilizer Congress 7- 13 September, 1997, Gent - BELGIUM, pp 239-246
  5. Nankova M., H. Kirchev. Effect of long-term mineral fertilization on humic condition of the slightly leached chernfzem in Dobroudja. In: First National Conference on Humus Substances and Soil Tillage, 11-12 May, Borovec, 2000, BULGARIA, pp 61-65
  6. Nankova M., P.Yankov, D.Georgiev, N.Nankov. Role of some agronomy practices on the nutrition regime of Haplic Chernozems after spring crops. Fresenius Environmental Bulletin, volume 19 – No 8b, 2010, pp 1715-1721, ISSN 1018-4619, www. psp - parlar.de,
  7. Nankova M., P.Yankov, I.Iliev. Content and reserves of total carbon in twofield crop rotation forming at 40 years systematic mineral fertilization on Haplic Chernozems. In: International conference “100 of soil science in Bulgaria”, 16-20th May 2011, Sofia, part II: 698 – 694.
  8. Nankova M. Humic fraction composition of Haplic Chernozems on Dobrudzha region under 40-years systematic mineral fertilization. Soil Science Agrochemistry and Ecology, vol XLV, Supplement No 1– 4, 2011, Sofia:179–184.
  9. Nankova M. Long-Term Mineral Fertilization and Soil Fertility. Agricultural Science Edited by Dr. Godwin Aflakpui Publisher InTech, 2012, Shapter 6. pp 97-118, ISBN 978-953-51-0567-1, www.intechopen.com
  10. Nankova M., G. Bankova-Atanasova, T. Todorova. Influence of biological and conventional farming systems on some characteristics of soil organic matter in Haplic Chernozems. In: Fourth National Conference of BHSS "Humic substances and their role in climate change mitigation", Sofia, September 8-10, 2016, 347-367; ISBN 978- 619-90189-2-7.
  11. Nankova M. Soil quality assessment down the profile of Haplic Chernozems as a result from 50-years mineral fertilization. Silva Balcanica, 20 (Special Issuie 1), 2019, 45-53, ISSN 1311 – 8706, CABI data base
  12. Shishkov T., E. Filcheva, M. Nankova, M. Kercheva, E. Dimitrov. HUMIC SUBSTANCES, PHYSICOCHEMICAL PROPERTIES AND AGROCHEMICAL CHARACTERISTIC OF STRONGLY LEACHED CHERNOZEM FROM NORTHEASTERN BULGARIA. Silva Balcanica, 2019, 20 (Special Issuie 1), 29-44, Q4, https://silvabalcanica.files.wordpress.com/2019/07/sb_20-special-issue1-2019-029-044.pdf, ISSN 1311 – 8706, CABI data base
  13. Kononova M., N. Belchikova. Rapid methods of determining the humus composition of mineral soil. Sov. Soil.Sci. 1961, No10, pp.75–87.
  14. Kononova M. Soil Organic Matter: It’s Nature, Its Role in Soil Formation and in Soil Fertility. Pergamon Press Ltd., Oxford, 1966, 45- 49.
  15. Spiegel, H., G. Dersch, J. Hosch, A. Baumgarten. Tillage effects on soil organic carbon and nutrient availability in a long-term field experiment in Austria. Die Bodenkultur 58, 2007, 47 58.
  16. Filcheva E., C.Tsadilas. Influence of Cliniptilolite and Compost on Soil Properties. Commun. of Soil Sci. and Plant Analysis, 2002, 33, 3–4, 595–607.
  17. Ismail A., T. Dimov. The archaeological complex "Durankulash Lake" - nature, ecology, discoveries. Almanac "Antimovsky Khan", 2009, issue 3, 65-77
  18. Orlov, D. S., and L. A. Grishina. "Practicum in humus chemistry." ,1981

Article full text

Download PDF