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Rutkowska, B.* ; Schröder, P. ; Mench, M.* ; Rineau, F.* ; Szulc, W.* ; Pobereżny, J.* ; Tiideberg, K.* ; Niedziński, T.* ; Loit, E.*

Role of phytolith occluded carbon of cereales plants for climate change mitigation.

J. Water Land Dev., 50-58 (2024)
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Open Access Gold
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Phytolith-occluded carbon (PhytOC) is highly stable, and constitutes an important source of long-term C storage in agrosystems. This stored carbon is resistant to the processes of oxidation of carbon compounds. In our research phytolith content in barley (Estonia) and oat (Poland) grain and straw was assessed at field trials, with Si as a liquid immune stimulant OPTYSIL and compost fertilisation. We showed that cereals can produce relatively high amounts of phytoliths. PhytOC plays a key role in carbon sequestration, particularly for poor, sandy Polish and Estonian soils. The phytolith content was always higher in straw than in grain regardless of the type of cereals. The phytolith content in oat grains varied from 18.46 to 21.28 mg∙g−1 DM, and in straw 27.89–38.97 mg∙g−1 DM. The phytolith content in barley grain ranged from 17.24 to 19.86 mg∙g−1 DM, and in straw from 22.06 to 49.08 mg∙g−1 DM. Our results suggest that oat ecosystems can absorb from 14.94 to 41.73 kg e-CO2∙ha−1 and barley absorb from 0.32 to 1.60 kg e-CO2∙ha−1. The accumulation rate of PhytOC can be increased 3-fold in Polish conditions through foliar application of silicon, and 5-fold in Estonian conditions. In parallel, the compost fertilisation increased the phytolith content in cereals.
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Publication type Article: Journal article
Document type Scientific Article
Corresponding Author
Keywords Carbon Sequestration ; Cereals ; Climate Change ; Compost ; Phytolith Occluded Carbon ; Silicon
ISSN (print) / ISBN 1429-7426
e-ISSN 2083-4535
Quellenangaben Volume: , Issue: 60, Pages: 50-58 Article Number: , Supplement: ,
Publisher Institute for Land Reclamation and Grassland Farming
Non-patent literature Publications
Reviewing status Peer reviewed