Legacy phosphorus and no tillage agriculture in tropical oxisols of the Brazilian savanna

The Science of the Total Environment
Marcos RodriguesWilfrand Ferney Bejarano Herrera

Abstract

Crop production in the Brazilian Cerrado is limited by soil phosphorus (P) supply without large inputs of inorganic P fertilizer, which may become more costly and scarce in the future. Reducing dependency on fertilizer P requires a greater understanding of soil P supply in the highly weathered soils in this important agricultural region. We investigated the impact of no tillage (NT) and conventional tillage (CT) agriculture on accumulated (legacy) soil P and P forms in four long-term sites. Compared to the native savanna soils, tilled soils receiving regular annual P fertilizer inputs (30-50 kg P ha(-1)) increased all forms of inorganic and organic P, except highly recalcitrant P associated with the background lithology. However, 70-85% of the net added P was bound in moderately labile and non-labile forms associated with Fe/Al oxyhydroxides rather than in plant available forms. Under NT agriculture, organic P forms and labile and non-labile inorganic P forms were all significantly (P<0.05) increased in the surface soil, except for one site with maize residues where labile inorganic P was increased more under CT agriculture. The contribution of organic P cycling in these tropical soils increased after conversion to agriculture ...Continue Reading

References

Oct 31, 2008·Talanta·Benjamin L TurnerSusan Newman
May 17, 2011·Plant Physiology·Jianbo ShenFusuo Zhang
Mar 21, 2012·Proceedings of the National Academy of Sciences of the United States of America·Sheida Z SattariMartin K van Ittersum
Feb 16, 2015·Ambio·Paul J A WithersSylvain Pellerin

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Citations

Jun 1, 2016·Nature Plants·Eric D RoyStephen Porder
Jun 25, 2017·Systematic and Applied Microbiology·German A Estrada-BonillaElke J B N Cardoso
Feb 9, 2018·Scientific Reports·Paul J A WithersPaulo S Pavinato
Oct 8, 2019·Journal of Environmental Quality·Kimberley D SchneiderHenry F Wilson
Oct 8, 2019·Journal of Environmental Quality·Bianca DasSusanne Schmidt
Sep 29, 2020·Scientific Reports·Paulo S PavinatoDavey L Jones
Jul 22, 2017·Environmental Science and Pollution Research International·Hongbiao CuiJing Zhou
Jan 3, 2020·Global Change Biology. Bioenergy·Amin SoltangheisiLuiz Antonio Martinelli
Dec 21, 2020·The Science of the Total Environment·Jefferson Santana da Silva CarneiroLeônidas Carrijo Azevedo Melo
Jan 18, 2021·Journal of the Science of Food and Agriculture·Jinxi HeSiyu Gu
Aug 3, 2021·The Science of the Total Environment·Qinggong MaoXiankai Lu
Nov 16, 2021·Frontiers in Plant Science·Noura BechtaouiMartin Jemo

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