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Effect of long-term organic amendments on chemical and microbial properties of a luvisol

H. Scherer,D. Metker,G. Welp

Published 2018 in Plant Soil and Environment

ABSTRACT

We studied the long-term effect (about 45 years) of farmyard manure, sewage sludge and compost application in two increments on organic carbon (C org ), the amount (C mic ) and activity of the microbial biomass (soil respiration, dehydrogenase activity), total N content and N delivery of soils as compared to manuring with mineral fertilizers. The application of both increments of compost and the high sewage sludge application rate resulted in an increase in C org while soils treated with both compost application rates and the high farmyard manure application rate showed a significant increase in C mic . C mic /C org ranged between 1.7 and 3.3. Dehydrogenase activity and soil respiration were the greatest in the soil with the highest compost and farmyard manure application rates. Total soil N content was significantly higher in both compost treatments and in the treatment with the high sewage sludge ap plication rate. This was accompanied by the highest N uptake of ryegrass.

PUBLICATION RECORD

  • Publication year

    2018

  • Venue

    Plant Soil and Environment

  • Publication date

    2018-02-10

  • Fields of study

    Chemistry, Environmental Science

  • Identifiers
    DOI 10.17221/3283-PSE
  • External record

    Open on Semantic Scholar

  • Source metadata

    Semantic Scholar

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