Article (Scientific journals)
Biochar affects silicification patterns and physical traits of rice leaves cultivated in a desilicated soil (Ferric Lixisol)
de Tombeur, Félix; Cooke, J.; Collard, Laurie et al.
2021In Plant and Soil, 460 (1-2), p. 375-390
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Keywords :
Biochar; Biomechanics; Biosilicification; Leaf toughness; Silicon; Silicon fertilizer; Gossypium hirsutum
Abstract :
[en] Aims: Increasing the leaf silicification of cereal crops to ameliorate defenses against stresses and improve yields constitutes a major challenge in (sub-)tropical regions with highly desilicated soils. We tested the efficacy of different biochars – as readily available alternatives to commercial fertilizers – to increase leaf silicification and understand subsequent impacts of leaf traits that might benefit crops. Methods: We compared the application of two biochars (rice-derived biochar with 198 g kg− 1 of Si and cotton-derived biochar with 4 g kg− 1 of Si) and wollastonite (240 g kg− 1 of Si) at two application rates on the leaf silicification patterns and leaf traits of rice growing in pots containing highly desilicated soil (Ferric Lixisol) from Burkina Faso. Results: Leaf Si increased from 19.0 to 70.4 g kg− 1 with Si addition (control < cotton biochar < wollastonite < rice biochar), resulting in larger epidermal silica deposits. Leaf carbon (C), leaf mass per area (LMA) and leaf arc decreased and were negatively correlated with leaf Si, however, surprisingly, the leaf force to punch and the plant biomass decreased. Conclusions: We demonstrate the effective use of rice biochar in desilicated environments to improve the Si status of cereal crops and their associated leaf traits. In particular, the decrease in LMA with rice biochar application shows a promising capacity of rice biochar to reduce rice leaf C costs. In situ trials are now needed to investigate whether or not these beneficial effects may result in increased crop yields through resilience against environmental stresses. © 2021, The Author(s), under exclusive licence to Springer Nature Switzerland AG part of Springer Nature.
Disciplines :
Environmental sciences & ecology
Author, co-author :
de Tombeur, Félix ;  Université de Liège - ULiège > Département GxABT > Echanges Eau - Sol - Plantes
Cooke, J.;  School of Environment, Earth and Ecosystem Sciences, The Open University, Milton Keynes, MK7 6AA, United Kingdom
Collard, Laurie
Cissé, Drissa ;  Université de Liège - ULiège > Terra
Saba, F.;  Institut de développement rural (IDR), Université Nazi Boni (UNB), Bobo-Dioulasso, Burkina Faso
Lefebvre, D.;  School of Water, Energy and Environment, Cranfield University, College Road, Bedford, MK43 0AL, United Kingdom
Burgeon, Victor ;  Université de Liège - ULiège > Département GxABT > Echanges Eau - Sol - Plantes
Nacro, H. B.;  Institut de développement rural (IDR), Université Nazi Boni (UNB), Bobo-Dioulasso, Burkina Faso
Cornelis, Jean-Thomas ;  Université de Liège - ULiège > Département GxABT > Echanges Eau - Sol - Plantes
Language :
English
Title :
Biochar affects silicification patterns and physical traits of rice leaves cultivated in a desilicated soil (Ferric Lixisol)
Publication date :
2021
Journal title :
Plant and Soil
ISSN :
0032-079X
eISSN :
1573-5036
Publisher :
Kluwer Academic Publishers, Netherlands
Volume :
460
Issue :
1-2
Pages :
375-390
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 15 February 2022

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