Cited by 208Soil Carbon and Nitrogen DynamicsLegume Nitrogen Fixing SymbiosisAgronomic Practices and Intercropping Systems

Biochar application rate affects biological nitrogen fixation in red clover conditional on potassium availability

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Mia, S., van Groenigen, J.W., van de Voorde, T.F.J., Oram, N.J., Bezemer, T.M., Mommer, L., Jeffery, S.·2014·Agriculture, Ecosystems & Environment

Abstract

Increased biological nitrogen fixation (BNF) by legumes has been reported following biochar application to soils, but the mechanisms behind this phenomenon remain poorly elucidated. We investigated the effects of different biochar application rates on BNF in red clover (Trifolium pratense L.). Red clover was grown in mono or mixed cultures with red fescue grass (Festuca rubra L.) and plantain (Plantago lanceolata L.) at a range of different biochar application rates (0, 10, 50 and 120tha−1). In a separate experiment, nutrient effects of biochar on BNF were investigated using nitrogen, phosphorous and potassium (N, P and K) and micronutrient fertilization using the same plant species.Biochar addition increased BNF and biochar applied at a rate of 10tha−1 led to the highest rate of BNF. Total biomass also showed the greatest increase at this application rate. An application rate of 120tha−1 significantly decreased biomass production in both single and mixed cultures when compared to the control, with the greatest reduction occurring in red clover. Furthermore, BNF was significantly higher in pots in which red clover was grown in mixed cultures compared to monocultures. In the absence of biochar, K fertilization caused a significant increase in BNF. For N, P, and micronutrient fertilization, BNF did not significantly differ between treatments with and without biochar addition.We conclude that different biochar application rates lead to different effects in terms of BNF and biomass production. However, due to the high variety of biochar properties, different application rates should be investigated on a case specific basis to determine the optimum biochar application strategies.

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Crossref · 10.1016/j.agee.2014.03.011

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Authors
Mia, S., van Groenigen, J. W., van de Voorde, T. F. J., Oram, N. J., Bezemer, T. M., Mommer, L., & Jeffery, S.
Affiliations
Wageningen University & Research (NL)
Corresponding author
Jeffery, S.
Venue
Agriculture, Ecosystems & Environment
Publisher
Elsevier BV
Published
2014-06
Volume
191
Pages
83-91
ISSN
0167-8809 (ISSN-L)
OpenAlex
W1970272653
Cited by
208
References
58
Citations by year
2026: 14 · 2025: 21 · 2024: 12 · 2023: 18 · 2022: 20 · 2021: 28 · 2020: 13 · 2019: 20 · 2018: 17 · 2017: 16 · 2016: 14 · 2015: 10 · 2014: 5
FWCI
21.25
Type
journal article
Language
en
Open access
Locations
  • Agriculture Ecosystems & Environment (publishedVersion)
  • Socio-Environmental Systems Modeling (acceptedVersion)
  • Data Archiving and Networked Services (DANS) (submittedVersion, other-oa)
  • KNAW Research Portal (The Royal Netherlands Academy of Arts and Sciences) (submittedVersion, other-oa)
  • KNAW research portal (Royal Academy of Art and Sciences (KNAW)) (submittedVersion, other-oa)
  • RUNE (Research UNE) (submittedVersion)
  • Data Archiving and Networked Services (DANS) (submittedVersion)
Topics
  • Life Sciences › Agricultural and Biological Sciences › Soil Science › Soil Carbon and Nitrogen Dynamics
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Legume Nitrogen Fixing Symbiosis
  • Life Sciences › Agricultural and Biological Sciences › Agronomy and Crop Science › Agronomic Practices and Intercropping Systems
Keywords
biochar, biochar application rate, nitrogen fixation, red clover, potassium fertilization, Festuca rubra, plantain, biomass production, micronutrient fertilization, nitrogen fertilization, phosphorus fertilization

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