Cited by 261Soil and Unsaturated FlowSoil Carbon and Nitrogen DynamicsSoil and Water Nutrient Dynamics

Nutrient leaching in a Colombian savanna Oxisol amended with biochar

Major, Julie, Rondon, Marco, Molina, Diego, Riha, Susan J., Lehmann, Johannes·2012·Journal of Environmental Quality

Abstract

Nutrient leaching in highly weathered tropical soils often poses a challenge for crop production. We investigated the effects of applying 20 t ha biochar (BC) to a Colombian savanna Oxisol on soil hydrology and nutrient leaching in field experiments. Measurements were made over the third and fourth years after a single BC application. Nutrient contents in the soil solution were measured under one maize and one soybean crop each year that were routinely fertilized with mineral fertilizers. Leaching by unsaturated water flux was calculated using soil solution sampled with suction cup lysimeters and water flux estimates generated by the model HYDRUS 1-D. No significant difference ( > 0.05) was observed in surface-saturated hydraulic conductivity or soil water retention curves, resulting in no relevant changes in water percolation after BC additions in the studied soils. However, due to differences in soil solution concentrations, leaching of inorganic N, Ca, Mg, and K measured up to a depth of 0.6 m increased ( < 0.05), whereas P leaching decreased, and leaching of all nutrients (except P) at a depth of 1.2 m was significantly reduced with BC application. Changes in leaching at 2.0 m depth with BC additions were about one order of magnitude lower than at other depths, except for P. Biochar applications increased soil solution concentrations and downward movement of nutrients in the root zone and decreased leaching of Ca, Mg, and Sr at 1.2 m, possibly by a combination of retention and crop nutrient uptake.

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Crossref · 10.2134/jeq2011.0128

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Authors
Major, J., Rondon, M., Molina, D., Riha, S. J., & Lehmann, J.
Affiliations
  • Cornell University (US)
  • Centro Internacional de Agricultura Tropical (CIAT), A.A.; 6713 Cali Colombia
  • International Center for Tropical Agriculture (CO)
Corresponding author
Lehmann, Johannes
Venue
Journal of Environmental Quality
Publisher
Wiley
Published
2012-07
Volume
41
Issue
4
Pages
1076-1086
ISSN
0047-2425 (ISSN-L)
OpenAlex
W2005588303
Cited by
261
References
66
Citations by year
2026: 6 · 2025: 9 · 2024: 20 · 2023: 20 · 2022: 20 · 2021: 40 · 2020: 29 · 2019: 22 · 2018: 19 · 2017: 19 · 2016: 19 · 2015: 10 · 2014: 16 · 2013: 7 · 2012: 5
FWCI
29.77
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Environmental Quality (publishedVersion)
  • PubMed (publishedVersion)
  • CGSPace A Repository of Agricultural Research Outputs (Consultative Group for International Agricultural Research) (submittedVersion)
Funders
  • Canada Graduate Scholarship from the Natural Sciences and Engineering Research Council of Canada
  • Department of Crop and Soil Sciences at Cornell University
Topics
  • Physical Sciences › Engineering › Civil and Structural Engineering › Soil and Unsaturated Flow
  • Life Sciences › Agricultural and Biological Sciences › Soil Science › Soil Carbon and Nitrogen Dynamics
  • Physical Sciences › Environmental Science › Environmental Chemistry › Soil and Water Nutrient Dynamics
Keywords
biochar, nutrient leaching, Oxisol, savanna soils, soil pore water, hydraulic conductivity, soil water retention, inorganic nitrogen, phosphorus, calcium, magnesium, potassium, strontium, maize, soybean, mineral fertilization, soil hydrology
MeSH terms
Charcoal, Colombia, Zea mays, Environmental Monitoring, Soil, Glycine max, Time Factors, Water, Water Movements, Ecosystem, Plant Roots

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