Cited by 552Soil Carbon and Nitrogen DynamicsSoil and Unsaturated FlowSoil Management and Crop Yield

Assessing potential of biochar for increasing water-holding capacity of sandy soils

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Basso, Andres S., Miguez, Fernando E., Laird, David A., Horton, Robert, Westgate, Mark·2013·GCB Bioenergy

Abstract

Abstract Increasing the water‐holding capacity of sandy soils will help improve efficiency of water use in agricultural production, and may be critical for providing enough energy and food for an increasing global population. We hypothesized that addition of biochar will increase the water‐holding capacity of a sandy loam soil, and that the depth of biochar incorporation will influence the rate of biochar surface oxidation in the amended soils. Hardwood fast pyrolysis biochar was mixed with soil (0%, 3%, and 6% w/w) and placed into columns in either the bottom 11.4 cm or the top 11.4 cm to simulate deep banding in rows (DBR) and uniform topsoil mixing (UTM) applications, respectively. Four sets of 18 columns were incubated at 30 °C and 80% RH. Every 7 days, 150 mL of 0.001 M calcium chloride solution was added to the columns to produce leaching. Sets of columns were harvested after 1, 15, 29, and 91 days. Addition of biochar increased the gravity‐drained water content 23% relative to the control. Bulk density of the control soils increased with incubation time (from 1.41 to 1.45 g cm−3), whereas bulk density of biochar‐treated soils was up to 9% less than the control and remained constant throughout the incubation period. Biochar did not affect the CEC of the soil. The results suggest that biochar added to sandy loam soil increases water‐holding capacity and might increase water available for crop use.

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Crossref · 10.1111/gcbb.12026

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Authors
Basso, A. S., Miguez, F. E., Laird, D. A., Horton, R., & Westgate, M.
Affiliations
Iowa State University (US)
Corresponding author
Miguez, Fernando E.
Venue
GCB Bioenergy
Publisher
Wiley
Published
2012-12-15
Volume
5
Issue
2
Pages
132-143
ISSN
  • 1757-1693 (ISSN-L)
  • 1757-1707
OpenAlex
W2097643082
Cited by
552
References
46
Citations by year
2026: 25 · 2025: 50 · 2024: 38 · 2023: 57 · 2022: 49 · 2021: 62 · 2020: 62 · 2019: 44 · 2018: 41 · 2017: 44 · 2016: 32 · 2015: 25 · 2014: 20 · 2013: 3
FWCI
23.91
Type
journal article
Language
en
Open access
Locations
  • GCB Bioenergy (publishedVersion)
  • Iowa State University Digital Repository (Iowa State University) (submittedVersion, cc-by)
Topics
  • Life Sciences › Agricultural and Biological Sciences › Soil Science › Soil Carbon and Nitrogen Dynamics
  • Physical Sciences › Engineering › Civil and Structural Engineering › Soil and Unsaturated Flow
  • Life Sciences › Agricultural and Biological Sciences › Soil Science › Soil Management and Crop Yield
Keywords
biochar, water holding capacity, sandy soil, sandy loam soil, soil bulk density, cation exchange capacity, soil water retention, soil amendment

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