Cited by 107Soil Carbon and Nitrogen DynamicsAgricultural Science and FertilizationRice Cultivation and Yield Improvement

Quantifying the effect of biochar amendment on soil quality and crop productivity in Chinese rice paddies

Huang, Min, Yang, Liu, Qin, Huadong, Jiang, Ligeng, Zou, Yingbin·2013·Field Crops Research

Abstract

China needs to produce about 20% more rice by 2030 to meet the growing demand for food that will result from population growth and economic development. This is not an easy task with soil quality being one of the major limiting factors. Improving the recycling of organic manures can be an important step toward stabilizing and optimizing soil quality in crop production systems. Recently, the pyrolysis conversion of crop straw into biochar and using it as a soil amendment has begun to attract increasing attention in China. Here, we performed a comprehensive analysis of 6 published studies with 11 field experiments to quantify the biochar amendment effect on soil quality and crop productivity in Chinese rice paddies. Our analysis showed that short-term application of biochar amendment had a positive effect on soil quality in rice paddies across a wide range of climates and soil types in China. However, the average effect of biochar amendment on rice yield was neutral. In contrast to biochar amendment, N fertilizer was less effective for improving soil quality but more effective for increasing rice yield. More interestingly, we found that biochar amendment had a positive effect on rice yield under N fertilizer application conditions, and there was a tight relationship between the effect of biochar amendment on rice yield and that on agronomic N use efficiency. The results lead us to conclude that further investigations are needed to determine (1) the long-term effect of biochar amendment on rice productivity, (2) the effect of biochar amendment on N uptake and metabolism in rice, and (3) the effect of biochar amendments produced from different feedstock and under different process conditions on soil quality and rice productivity in Chinese paddies.

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Crossref · 10.1016/j.fcr.2013.08.010

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Authors
Huang, M., Yang, L., Qin, H., Jiang, L., & Zou, Y.
Affiliations
  • Guangxi University (CN)
  • Guangxi Academy of Agricultural Science (CN)
  • State Key Laboratory of Hybrid Rice (CN)
Corresponding author
  • Jiang, Ligeng
  • Zou, Yingbin
Venue
Field Crops Research
Publisher
Elsevier BV
Published
2013-12
Volume
154
Pages
172-177
ISSN
0378-4290 (ISSN-L)
OpenAlex
W2064383842
Cited by
107
References
43
Citations by year
2026: 7 · 2025: 3 · 2024: 11 · 2023: 5 · 2022: 6 · 2021: 16 · 2020: 9 · 2019: 7 · 2018: 12 · 2017: 11 · 2016: 4 · 2015: 11 · 2014: 5
FWCI
9.64
Type
journal article
Language
en
Open access
closed
Locations
Field Crops Research (publishedVersion)
Funders
Earmarked Fund for Modern Agro-Industry Technology of China (CARS-01-34)
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 › Plant Science › Rice Cultivation and Yield Improvement
Keywords
biochar amendment, paddy fields, soil quality, rice yield, nitrogen fertilization, nitrogen agronomic efficiency

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