Effects of a humic deposit (gyttja) on soil chemical and microbiological properties and heavy metal availability

Karaca A., Turgay O. C., Tamer N.

BIOLOGY AND FERTILITY OF SOILS, vol.42, no.6, pp.585-592, 2006 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 42 Issue: 6
  • Publication Date: 2006
  • Doi Number: 10.1007/s00374-005-0056-3
  • Journal Name: BIOLOGY AND FERTILITY OF SOILS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.585-592
  • Keywords: gyttja, enzyme activity, biomass C, soil respiration, soil organic matter, MICROBIAL BIOMASS, ARID SOIL, ACID, PHOSPHATASE, INDICATORS, DYNAMICS, NITROGEN, QUALITY, FOREST, TERM
  • Ankara University Affiliated: Yes

Abstract

The influence of a humic deposit (Gyttja, G) alone (applied at 25 kg ha(-1)) and in combination with mineral fertilizer (G + NP) on soil organic matter content, pH, electrical conductivity, total N content, calcium carbonate content, enzyme activities (urease, beta-glucosidase, arylsulphatase, and alkaline phosphatase), microbial biomass C, soil respiration, and availability of Cd, Pb, Ni, and Zn was examined through a 180-day incubation period and compared with the behavior of no treatment (control) and NP treatment. A significant increase in organic matter content was observed in soils treated with G + NP. Compared with G and NP alone, the G + NP-amended soils showed higher values of the selected microbiological properties.