Impact of 60 Years of Intensive Rice Cropping on Clay Minerals in Soils Due to Si Exportation - BRGM - Bureau de recherches géologiques et minières Access content directly
Journal Articles American Journal of Agriculture and Forestry Year : 2017

Impact of 60 Years of Intensive Rice Cropping on Clay Minerals in Soils Due to Si Exportation

Abstract

Rice is cultivated as staple for over half of the World's population. In Camargue (South of France) rice fields have been established on very young soils developed from historic fluvial deposits of the Rhône River. The comparison of clay mineralogy in a paddy field cultivated for 60 years and in a control shows a significant increase of the clay crystallinity in the paddy field soil, which implies a decrease of their solubility. In the paddy soils, phytoliths, poorly crystallized clays, such as smectite and to a lesser extent kaolinite, are progressively dissolved to supply Si for rice requirements. The sustainability of the crop system requires the clearing of silica exportations.

Domains

Geochemistry
Fichier principal
Vignette du fichier
AJAF_Irfan et al.pdf (917.29 Ko) Télécharger le fichier
Origin : Files produced by the author(s)
Loading...

Dates and versions

hal-01510242 , version 1 (19-04-2017)

Licence

Attribution - ShareAlike

Identifiers

Cite

Kamran Irfan, Fabienne Trolard, Tanvir Shahzad, Lise Cary, Jean-Claude Mouret, et al.. Impact of 60 Years of Intensive Rice Cropping on Clay Minerals in Soils Due to Si Exportation. American Journal of Agriculture and Forestry, 2017, 5 (3), pp.40-48. ⟨10.11648/j.ajaf.20170503.12⟩. ⟨hal-01510242⟩
147 View
188 Download

Altmetric

Share

Gmail Facebook Twitter LinkedIn More