Effect of organic fertilisers on glomalin content and soil organic matter quality

• Published in: Plant, soil and environment Vol. 66; no. 11; pp. 590 - 597
• Main Authors: Balík, Jiří, Sedlář, Ondřej, Kulhánek, Martin, Černý, Jindřich, Smatanová, Michaela, Suran, Pavel
• Format: Journal Article
• Language: English; Czech
• Published: Prague Czech Academy of Agricultural Sciences (CAAS) 01.01.2020; Czech Academy of Agricultural Sciences
• Subjects: decomposition; Fertilization; Fertilizers; glycoprotein; Humic acids; Humic substances; humic substances fractionation; long-term experiments; mineral fertilisation; Near infrared radiation; Organic fertilizers; Organic matter; Organic soils; quality indicator; Soil aggregates; Soil fertility; Soil organic matter; Soil stabilization; Soils; Topsoil
• ISSN: 1214-1178; 1805-9368
• DOI: 10.17221/385/2020-PSE

Glomalin is one of the factors with an important role at forming and stabilising soil aggregates. Long-term stationary experiments were carried out to observe the influence of various fertilisation treatments on the content of glomalin in topsoil. The content of easily extractable glomalin (EEG) and total glomalin (TG) were determined. Moreover, glomalin was also determined by using the near-infrared reflectance spectroscopy (GNIRS). Both mineral and organic fertilisation significantly increased the content of glomalin compared to the unfertilised control. However, observed differences among individual fertilisation treatments were not significant. A significant correlation was determined between the content of EEG, TG, GNIRS, and the content of humic substances as well as humic acids. Both methods used (EEG, TG) can equally reflect soil organic matter quality. A significant correlation was also recorded between the GNIRS and extraction methods (EEG, TG).