Plant development effects of biochars from different raw materials

Cely Parra, Paola Andrea and Mendez Lazaro, Ana M. and Paz Ferreiro, Jorge and Gasco Guerrero, Gabriel (2015). Plant development effects of biochars from different raw materials. In: "Plant development effects of biochars from different raw materials", 12/04/2015-17/04/2015, Vienna, Austria. p. 1.

Description

Title: Plant development effects of biochars from different raw materials
Author/s:
  • Cely Parra, Paola Andrea
  • Mendez Lazaro, Ana M.
  • Paz Ferreiro, Jorge
  • Gasco Guerrero, Gabriel
Item Type: Presentation at Congress or Conference (Other)
Event Title: Plant development effects of biochars from different raw materials
Event Dates: 12/04/2015-17/04/2015
Event Location: Vienna, Austria
Title of Book: Geophysical Research Abstracts
Date: 2015
Volume: 17
Subjects:
Faculty: E.T.S.I. Agrónomos (UPM) [antigua denominación]
Department: Producción Agraria
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

Biochar can provide multiple benefits in the ecosystem. However, the presence of phytotoxic compounds in some biochars is an important concern that needs to be addressed and that depends on the raw material and the pyrolysis conditions used in biochar production. For example, sewage sludge biochars can have elevated heavy metal con- tents as they were present in the feedstock and were enriched during pyrolysis. Also during carbonization, some phytotoxic compounds such as polycyclic aromatic hydrocarbons (PAHs), polyphenols or volatile organic com- pounds (VOCs) could be formed representing a risk of contamination to soils and crops. In this work we report the results from seed germination and plant development for three biochars prepared from wood, paper sludge plus wheat husks and sewage sludge. Five higher plant species (cress, lentils, cucumber, tomato and lettuce) were studied. Biochar from wood shows seed inhibition in several species and the paper sludge biochar on lettuce. For the rest, the effect on seed germination was positive. No inhibition of root growth was detected, but in some cases leaves and stems growth were inhibited. Our results are significant in terms of advancing or current understanding on the impacts of biochar on vegetative growth and linking those effects to biochar properties.

More information

Item ID: 37653
DC Identifier: http://oa.upm.es/37653/
OAI Identifier: oai:oa.upm.es:37653
Deposited by: Memoria Investigacion
Deposited on: 03 Mar 2016 13:33
Last Modified: 06 Jun 2016 13:33
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