Effect Of Wood-Based Biochar And Sewage Sludge Amendments For Soil Phosphorus Availability

Authors

  • VLADIMÍR FRIŠTÁK
  • GERHARD SOJA

DOI:

https://doi.org/10.1515/nbec-2015-0020

Keywords:

biochar, sewage sludge, availability, heavy metals, phosphorus, soil

Abstract

This study investigated the effects of two biochars (pyrolysed wood chips and garden clippings) on phosphorus (P) availability in a heavy-metal contaminated soil poor in phosphorus. Short-term 14-days incubation experiments were conducted to study how applications of biochars at different rates (1 and 5 %) in combination with (1:1) and without dried sewage sludge from a municipal waste water treatment plant (WWTP) affected the content of soil extractable P. For P-availability analyses deionized water, calcium acetate lactate (CAL), Mehlich 3 and Olsen extraction protocols were applied. In addition, the content of total and mobile forms of potentially toxic heavy metals (PTHM) was studied. Application of both biochars caused a significant decrease of PTHM available forms in sewage sludge amended soil samples. The concentration of total and available P increased with higher biochar and sewage sludge application rates.

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How to Cite

FRIŠTÁK, V. ., & SOJA, G. . (2015). Effect Of Wood-Based Biochar And Sewage Sludge Amendments For Soil Phosphorus Availability. Nova Biotechnologica Et Chimica, 14(1), 104–115. https://doi.org/10.1515/nbec-2015-0020

Issue

Vol. 14 No. 1 (2015)

Section

Research Articles

License

All papers published in the Nova Biotechnologica et Chimica (NBC)  are published under a CC-BY licence (CC-BY 4.0). Published materials can be shared (copy and redistribute the material in any medium or format) and adapted (remix, transform, and build upon the material for any purpose, even commercially) with specifying the author(s).