Városi szennyvíziszap-terhelés hatásának vizsgálata tenyészedény-kísérletben. III.

Translated title of the contribution: Study on the effect of urban sewage sludge application in a pot experiment. III.

Kádár Imre, Morvai Balázs

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

A pot experiment was set up to test the effect of urban sewage sludge application on the "total" Ca, P, Fe, Al, Ni and Se fractions, estimated after digestion with cc. HNO 3 + cc. H 2O 2, and the NH 4-acetate + EDTA-soluble fractions of these elements in four experimental soils (acidic and calcareous sand, and acidic and calcareous clay). Soil analytical data were compared with the Ca, P, Fe, Al, Ni and Se contents in the grain and straw yield of the test plant, spring barley, to demonstrate the accumulation of these elements in the soil-plant system. For each soil, the application levels tested were 0, 2.5, 5, 10 and 20 g sludge/kg soil/year (amounting to 0, 7.5, 15, 30 and 50 g/kg soil over a period of 3 years) in terms of air-dry matter. The highest (20 g) rate was equivalent to ploughing in 60 t/ha air-dry material, representing a mass ratio of approx. 2%. The total number of pots (10-litre plastic buckets with perforated bottoms) was 80 (5 sludge treatments × 4 soils × 4 replications).

Translated title of the contributionStudy on the effect of urban sewage sludge application in a pot experiment. III.
Original languageHungarian
Pages (from-to)305-318
Number of pages14
JournalAgrokemia es Talajtan
Volume57
Issue number2
DOIs
Publication statusPublished - Dec 1 2008

ASJC Scopus subject areas

  • Agronomy and Crop Science
  • Soil Science

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