Cited by 172Soil Carbon and Nitrogen DynamicsAgricultural Science and FertilizationPlant Growth and Agriculture Techniques

Effects of hydrochar application on the dynamics of soluble nitrogen in soils and on plant availability

Bargmann, Inge, Rillig, Matthias C., Kruse, Andrea, Greef, Jörg‐Michael, Kücke, Martin·2014·Journal of Plant Nutrition and Soil Science

Abstract

Abstract Before hydrochars can be applied as soil amendments in agriculture, information about how hydrochar application affects soil nutrient cycles and plant growth are necessary. In this study, incubation experiments were performed to investigate hydrochar effects on N concentrations (NO$ _3^- $ , NH$ _4^+ $ ) in soils with different N pools (soil N, fertilizer N). A set of pot trials with three crop species (barley, phaseolus bean, leek) was conducted to determine hydrochar effects on plant N availability and biomass production after mineral‐N fertilization. Results of the incubation experiments show that hydrochar reduced the concentration of mineral N in soil within the first week after incorporation, especially that of nitrate. This was particularly evident, when hydrochars with high C : N ratio, high DOC and low mineral‐N contents were applied. Hydrochars promoted biomass production of barley and phaseolus bean in pot trials, which can be partly attributed to an increase in soil pH after hydrochar incorporation. Dry‐matter yield of leek tended to decrease after hydrochar application. Hydrochars with high C : N ratio decreased the plant's N content, an effect that was strongest with increased hydrochar concentration. Hydrochars with low C : N ratio did not affect the crop's N uptake. Our results show that the use of hydrochars as amendment in arable field or horticultural pot production will require an adjustment of N‐mineral‐fertilization strategies.

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Crossref · 10.1002/jpln.201300069

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  • Bargmann et al. (2013) noticed unavailability of nitrogen to plants due to absence of nitrogen migration in the first week of hydrochar addition, but slow release of nitrogen was noticed with time.

    “Further, Bargmann et al. (2013) noticed the unavailability of nitrogen to the plants due to the absence of nitrogen migration in the first week of hydrochar addition.Nevertheless, a slow release of the nitrogen was noticed with time [87].”

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Authors
Bargmann, I., Rillig, M. C., Kruse, A., Greef, J., & Kücke, M.
Affiliations
  • Freie Universität Berlin (DE)
  • Karlsruhe Institute of Technology (DE)
  • Julius Kühn-Institut (DE)
Corresponding author
Bargmann, Inge
Venue
Journal of Plant Nutrition and Soil Science
Publisher
Wiley
Published
2013-11-19
Volume
177
Issue
1
Pages
48-58
ISSN
  • 1436-8730 (ISSN-L)
  • 1522-2624
OpenAlex
W2043493275
Cited by
172
References
41
Citations by year
2026: 12 · 2025: 14 · 2024: 20 · 2023: 7 · 2022: 17 · 2021: 18 · 2020: 18 · 2019: 14 · 2018: 17 · 2017: 10 · 2016: 5 · 2015: 11 · 2014: 8 · 2013: 1
FWCI
12.07
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Plant Nutrition and Soil Science (publishedVersion)
  • OpenAgrar (submittedVersion)
Funders
Deutsche Bundesstiftung Umwelt
Topics
  • Life Sciences › Agricultural and Biological Sciences › Soil Science › Soil Carbon and Nitrogen Dynamics
  • Life Sciences › Agricultural and Biological Sciences › Soil Science › Agricultural Science and Fertilization
  • Life Sciences › Agricultural and Biological Sciences › Soil Science › Plant Growth and Agriculture Techniques
Keywords
hydrochar, soil amendment, soil nitrogen dynamics, nitrate, ammonium, C/N ratio, dissolved organic carbon, soil pH, biomass production, barley, Phaseolus beans, leek, mineral nitrogen fertilization, horticultural production

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