Biochar and its twin benefits: Crop residue management and climate change mitigation in India

Anand, Abhijeet; Kumar, Vivek; Kaushal, Priyanka

doi:10.1016/j.rser.2021.111959

Cited by 57 publications

(16 citation statements)

References 230 publications

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“…Biochar prepared from maize stover had less carbon mineralization ability as compared to the biochar prepared from pulses and other cereal residue. 154,155 Likewise, Eucalyptus saligna pyrolysis at 550 °C resulted in lower SOC mineralization by 5.5% over the control. 156 Application of biochar at the rate of 4.2 Mg ha −1 y −1 increases the soil C storage of 2.35 ± 0.4 Mg C ha −1 y −1 in sugarcane elds across the different regions of Brazil.…”

Section: 1 Carbon Sequestration Potential Of Biocharmentioning

confidence: 93%

Biochar implications in cleaner agricultural production and environmental sustainability

Singh¹,

Kumar²,

Rathore³

et al. 2023

Environ. Sci.: Adv.

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Section: 1 Carbon Sequestration Potential Of Biocharmentioning

confidence: 93%

Biochar implications in cleaner agricultural production and environmental sustainability

Singh¹,

Kumar²,

Rathore³

et al. 2023

Environ. Sci.: Adv.

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“…Additionally, Fawzy et al (2022) estimated that one ton of biochar could permanently remove approximately 2.68 tons of carbon dioxide equivalent from the atmosphere, corresponding to 3.26 tons of carbon dioxide equivalent per hour and 24.45-kilo tons of carbon dioxide equivalent annual removal. The biochar added to soil could sequestrate approximately 376.11 million tons of carbon dioxide equivalent and aid in retaining 1.66 million tons of soil nutrients (Anand et al 2022). The crop residues could produce 373 million tons of biochar and sequester 150 million tons of carbon dioxide equivalent per year in soils (Windeatt et al 2014).…”

Section: Role Of Biochar In Achieving a Negative Carbon Footprintmentioning

confidence: 99%

Materials, fuels, upgrading, economy, and life cycle assessment of the pyrolysis of algal and lignocellulosic biomass: a review

et al. 2023

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Climate change issues are calling for advanced methods to produce materials and fuels in a carbon–neutral and circular way. For instance, biomass pyrolysis has been intensely investigated during the last years. Here we review the pyrolysis of algal and lignocellulosic biomass with focus on pyrolysis products and mechanisms, oil upgrading, combining pyrolysis and anaerobic digestion, economy, and life cycle assessment. Products include oil, gas, and biochar. Upgrading techniques comprise hot vapor filtration, solvent addition, emulsification, esterification and transesterification, hydrotreatment, steam reforming, and the use of supercritical fluids. We examined the economic viability in terms of profitability, internal rate of return, return on investment, carbon removal service, product pricing, and net present value. We also reviewed 20 recent studies of life cycle assessment. We found that the pyrolysis method highly influenced product yield, ranging from 9.07 to 40.59% for oil, from 10.1 to 41.25% for biochar, and from 11.93 to 28.16% for syngas. Feedstock type, pyrolytic temperature, heating rate, and reaction retention time were the main factors controlling the distribution of pyrolysis products. Pyrolysis mechanisms include bond breaking, cracking, polymerization and re-polymerization, and fragmentation. Biochar from residual forestry could sequester 2.74 tons of carbon dioxide equivalent per ton biochar when applied to the soil and has thus the potential to remove 0.2–2.75 gigatons of atmospheric carbon dioxide annually. The generation of biochar and bio-oil from the pyrolysis process is estimated to be economically feasible.

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“…Numerous studies have indicated that pyrolysis temperature is the most important factor that determined biochar physicochemical properties (Hassan et al 2020;Anand et al 2022). Apart from the surface area, pH, and cation exchange capacity, which help to mediate soil physiochemical properties, the formation of organic compounds, especially those dissolved compounds, would also affect biochar disease suppression efficiency as well as plant growth.…”

Section: Pyrolysis Temperaturementioning

confidence: 99%

A quantitative evaluation of the biochar’s influence on plant disease suppress: a global meta-analysis

Yong

Chen

Xiao

et al. 2022

Biochar

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Numerous studies have demonstrated that soil applications of biochar contribute to plant disease suppression and growth promotion. Here, we quantitatively evaluated the performance of biochars on plant disease suppression and production using meta-analysis of literature data. The results indicated that biochar amendment dramatically reduced disease severity (DS) by 47.46% while increasing plant biomass by 44.05%. The highest disease suppression was achieved with soil application of straw-derived biochar compared to biochar from other feedstocks, while no significant increase in yield was found with straw-derived biochar. Biochars pyrolyzed at medium temperatures (350–600 °C) facilitate both disease controlling and growth promotion. Soil application of biochars between 3 and 5% significantly decreased plant DS by 59.11%, and inverted U-shaped biochar dose/DS suppression curve and biochar dose/growth curve were observed. In cash crop fields, the DS of plants amended with biochar was reduced over 50%, which was significantly higher than that of grain crops and perennial trees. Furthermore, biochar performance on plant disease suppression was higher for airborne pathogens than for soilborne pathogens, possibly due to the systemic activation of plant defences by biochar amendment. Additionally, a reduction of DS by biochar was observed on plants grown in agricultural soils. Our work contributes to the standardization of biochar production and provides a reference for improving the function of biochar in disease control. Graphical Abstract

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Biochar and its twin benefits: Crop residue management and climate change mitigation in India

Cited by 57 publications

References 230 publications

Biochar implications in cleaner agricultural production and environmental sustainability

Biochar implications in cleaner agricultural production and environmental sustainability

Materials, fuels, upgrading, economy, and life cycle assessment of the pyrolysis of algal and lignocellulosic biomass: a review

A quantitative evaluation of the biochar’s influence on plant disease suppress: a global meta-analysis

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