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Biochar’s effect on crop productivity and the dependence on experimental conditions—a meta-analysis of literature data

Background and aims For the last decade, there has been an increasing global interest in using biochar to mitigate climate change by storing carbon in soil. However, there is a lack of detailed knowledge on the impact of biochar on the crop productivity in different agricultural systems. The objecti... Full description

Journal Title: Plant and soil 2013-07-06, Vol.373 (1-2), p.583-594
Main Author: Liu, Xiaoyu
Other Authors: Zhang, Afeng , Ji, Chunying , Joseph, Stephen , Bian, Rongjun , Li, Lianqing , Pan, Genxing , Paz-Ferreiro, Jorge
Format: Electronic Article Electronic Article
Language: English
Subjects:
Publisher: Dordrecht: Springer Netherlands
ID: ISSN: 0032-079X
Link: http://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=27994562
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recordid: cdi_proquest_journals_1459952553
title: Biochar’s effect on crop productivity and the dependence on experimental conditions—a meta-analysis of literature data
format: Article
creator:
  • Liu, Xiaoyu
  • Zhang, Afeng
  • Ji, Chunying
  • Joseph, Stephen
  • Bian, Rongjun
  • Li, Lianqing
  • Pan, Genxing
  • Paz-Ferreiro, Jorge
subjects:
  • Agricultural research
  • Agronomy. Soil science and plant productions
  • Animal, plant and microbial ecology
  • Biological and medical sciences
  • Biomedical and Life Sciences
  • Carbon sequestration
  • Charcoal
  • Crop yields
  • Ecology
  • Environmental aspects
  • Fundamental and applied biological sciences. Psychology
  • General agronomy. Plant production
  • Life Sciences
  • Meta-analysis
  • Other nutrients. Amendments. Solid and liquid wastes. Sludges and slurries
  • Plant Physiology
  • Plant Sciences
  • Regular Article
  • Soil conditioners
  • Soil fertility
  • Soil science
  • Soil Science & Conservation
  • Soil-plant relationships. Soil fertility
  • Soil-plant relationships. Soil fertility. Fertilization. Amendments
ispartof: Plant and soil, 2013-07-06, Vol.373 (1-2), p.583-594
description: Background and aims For the last decade, there has been an increasing global interest in using biochar to mitigate climate change by storing carbon in soil. However, there is a lack of detailed knowledge on the impact of biochar on the crop productivity in different agricultural systems. The objective of this study was to quantify the effect of biochar soil amendment (BSA) on crop productivity and to analyze the dependence of responses on experimental conditions. Methods A weighted meta-analysis was conducted based on data from 103 studies published up to April, 2013. The effect of BSA on crop productivity was quantified by characterizing experimental conditions. Results In the published experiments, with biochar amendment rates generally
language: eng
source:
identifier: ISSN: 0032-079X
fulltext: no_fulltext
issn:
  • 0032-079X
  • 1573-5036
url: Link


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titleBiochar’s effect on crop productivity and the dependence on experimental conditions—a meta-analysis of literature data
creatorLiu, Xiaoyu ; Zhang, Afeng ; Ji, Chunying ; Joseph, Stephen ; Bian, Rongjun ; Li, Lianqing ; Pan, Genxing ; Paz-Ferreiro, Jorge
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descriptionBackground and aims For the last decade, there has been an increasing global interest in using biochar to mitigate climate change by storing carbon in soil. However, there is a lack of detailed knowledge on the impact of biochar on the crop productivity in different agricultural systems. The objective of this study was to quantify the effect of biochar soil amendment (BSA) on crop productivity and to analyze the dependence of responses on experimental conditions. Methods A weighted meta-analysis was conducted based on data from 103 studies published up to April, 2013. The effect of BSA on crop productivity was quantified by characterizing experimental conditions. Results In the published experiments, with biochar amendment rates generally <30 t ha −1 , BSA increased crop productivity by 11.0 % on average, while the responses varied with experimental conditions. Greater responses were found in pot experiments than in field, in acid than in neutral soils, in sandy textured than in loam and silt soils. Crop response in field experiments was greater for dry land crops (10.6 % on average) than for paddy rice (5.6 % on average). This result, associated with the higher response in acid and sandy textured soils, suggests both a liming and an aggregating/moistening effect of BSA. Conclusions The analysis suggests a promising role for BSA in improving crop productivity especially for dry land crops, and in acid, poor-structured soils though there was wide variation with soil, crop and biochar properties. Long-term field studies are needed to elucidate the persistence of BSA’s effect and the mechanisms for improving crop production in a wide range of agricultural conditions. At current prices and C-trading schemes, however, BSA would not be cost-effective unless persistent soil improvement and crop response can be demonstrated.
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subjectAgricultural research ; Agronomy. Soil science and plant productions ; Animal, plant and microbial ecology ; Biological and medical sciences ; Biomedical and Life Sciences ; Carbon sequestration ; Charcoal ; Crop yields ; Ecology ; Environmental aspects ; Fundamental and applied biological sciences. Psychology ; General agronomy. Plant production ; Life Sciences ; Meta-analysis ; Other nutrients. Amendments. Solid and liquid wastes. Sludges and slurries ; Plant Physiology ; Plant Sciences ; Regular Article ; Soil conditioners ; Soil fertility ; Soil science ; Soil Science & Conservation ; Soil-plant relationships. Soil fertility ; Soil-plant relationships. Soil fertility. Fertilization. Amendments
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descriptionBackground and aims For the last decade, there has been an increasing global interest in using biochar to mitigate climate change by storing carbon in soil. However, there is a lack of detailed knowledge on the impact of biochar on the crop productivity in different agricultural systems. The objective of this study was to quantify the effect of biochar soil amendment (BSA) on crop productivity and to analyze the dependence of responses on experimental conditions. Methods A weighted meta-analysis was conducted based on data from 103 studies published up to April, 2013. The effect of BSA on crop productivity was quantified by characterizing experimental conditions. Results In the published experiments, with biochar amendment rates generally <30 t ha −1 , BSA increased crop productivity by 11.0 % on average, while the responses varied with experimental conditions. Greater responses were found in pot experiments than in field, in acid than in neutral soils, in sandy textured than in loam and silt soils. Crop response in field experiments was greater for dry land crops (10.6 % on average) than for paddy rice (5.6 % on average). This result, associated with the higher response in acid and sandy textured soils, suggests both a liming and an aggregating/moistening effect of BSA. Conclusions The analysis suggests a promising role for BSA in improving crop productivity especially for dry land crops, and in acid, poor-structured soils though there was wide variation with soil, crop and biochar properties. Long-term field studies are needed to elucidate the persistence of BSA’s effect and the mechanisms for improving crop production in a wide range of agricultural conditions. At current prices and C-trading schemes, however, BSA would not be cost-effective unless persistent soil improvement and crop response can be demonstrated.
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abstractBackground and aims For the last decade, there has been an increasing global interest in using biochar to mitigate climate change by storing carbon in soil. However, there is a lack of detailed knowledge on the impact of biochar on the crop productivity in different agricultural systems. The objective of this study was to quantify the effect of biochar soil amendment (BSA) on crop productivity and to analyze the dependence of responses on experimental conditions. Methods A weighted meta-analysis was conducted based on data from 103 studies published up to April, 2013. The effect of BSA on crop productivity was quantified by characterizing experimental conditions. Results In the published experiments, with biochar amendment rates generally <30 t ha −1 , BSA increased crop productivity by 11.0 % on average, while the responses varied with experimental conditions. Greater responses were found in pot experiments than in field, in acid than in neutral soils, in sandy textured than in loam and silt soils. Crop response in field experiments was greater for dry land crops (10.6 % on average) than for paddy rice (5.6 % on average). This result, associated with the higher response in acid and sandy textured soils, suggests both a liming and an aggregating/moistening effect of BSA. Conclusions The analysis suggests a promising role for BSA in improving crop productivity especially for dry land crops, and in acid, poor-structured soils though there was wide variation with soil, crop and biochar properties. Long-term field studies are needed to elucidate the persistence of BSA’s effect and the mechanisms for improving crop production in a wide range of agricultural conditions. At current prices and C-trading schemes, however, BSA would not be cost-effective unless persistent soil improvement and crop response can be demonstrated.
copDordrecht
pubSpringer Netherlands
doi10.1007/s11104-013-1806-x