Biochar properties affecting carbon stability in soils contrasting in texture and mineralogy

Butnan, Somchai; Deenik, Jonathan; Toomsan, B.; Vityakon, Patma

doi:10.1016/j.anres.2018.03.002

Cited by 12 publications

(3 citation statements)

References 32 publications

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“…Applying biochar produced at 400 °C and 600 °C accelerated the uptake of ammonium in the soil, substantially decreasing the soil inorganic N (Bruun et al, 2012). Butnan et al (2017) compared the biochar applicability produced at 350 °C and 500 °C. The gross mineralization, labile N fraction and recalcitrant fraction and got enthused after the biochar (350 °C) improvement in the soil than biochar produced at 550 °C.…”

Section: Frontiers In Environmental Sciencementioning

confidence: 99%

Biochar-Soil-Plant interactions: A cross talk for sustainable agriculture under changing climate

Murtaza

Ahmed

Eldin

et al. 2023

Front. Environ. Sci.

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Biochars provide several agricultural and environmental benefits, such as soil health improvement, better crop growth and yield, carbon sequestration, decreasing greenhouse gas (GHGs) emissions, and regulation of nutrient dynamics. This review highlights the role of biochar in transforming the soil’s physiochemical and biological properties, and their impact on improving seed germination and seedling growth, altering crop physiological attributes, enhancing crop resistance against biotic and abiotic stresses, improving crop productivity, curtailing GHGs, and controlling nutrient leaching losses. However, the type of feedstock used, pyrolysis temperature, application rate and method, soil type and crop species largely influence the biochar performance under different environmental conditions. Application of biochars at low rates help to promote seed germination and seedling growth. Biochar modified the abiotic and microbial processes in the rhizosphere and increased nutrient mineralization and enhanced the nutrient availability for plant uptake. Hence, biochar enhanced the plant resistance against diseases, reduced the availability of heavy metals and improved the plant resilience against environmental stressors. By providing a comprehensive analysis about the variable impacts of biochars on soil physicochemical properties, plant growth, development and productivity and mitigating environmental problems, this review is quite valuable for developing an efficient soil and crop specific biochar with desired functionalities. It could be helpful in improving crop productivity, ensuring food security and better management of environment. Furthermore, this review identifies the knowledge gaps and suggests future outlooks for the commercialization of biochar applications on large-scale.

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Section: Frontiers In Environmental Sciencementioning

confidence: 99%

Biochar-Soil-Plant interactions: A cross talk for sustainable agriculture under changing climate

Murtaza

Ahmed

Eldin

et al. 2023

Front. Environ. Sci.

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“…Biochar induces shifts in soil microbial abundance and community composition [ 9 , 10 ], and can influence N turnover [ 11 , 12 ]. However, the results are often inconsistent [ 13 , 14 ]. Most previous agricultural experiments used freshly generated biochar [ 15 , 16 ], and the variable properties of fresh biochar may cause inconsistent results on plant and soil biological performances [ 17 ].…”

Section: Introductionmentioning

confidence: 99%

Biochar and compost effects on soil microbial communities and nitrogen induced respiration in turfgrass soils

et al. 2020

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We examined the effect of a labile soil amendment, compost, and recalcitrant biochar on soil microbial community structure, diversity, and activity during turfgrass establishment. Two application rates of biochar (B1 at 12.5 t ha-1and B2 at 25 t ha-1), a 5 centimeter (cm) green waste compost treatment (CM) in top soil, a treatment with 12.5 t ha-1 biochar and 5 cm compost (B1+CM), and an unamended control (CK) treatment were prepared and seeded with tall fescue. Overall, results of phospholipid fatty acid analysis (PLFA) profiling and Illumina high-throughput sequencing of 16S rRNA genes amplified from soil DNA revealed significant shifts in microbial community structures in the compost amended soils whereas in biochar amended soils communities were more similar to the control, unamended soil. Similarly, increases in enzymatic rates (6–56%) and nitrogen-induced respiration (94%) were all largest in compost amended soils, with biochar amended soils exhibiting similar patterns to the control soils. Both biochar and compost amendments impacted microbial community structures and functions, but compost amendment, whether applied alone or co-applied with biochar, exhibited the strongest shifts in the microbial community metrics examined. Our results suggest application of compost to soils in need of microbiome change (reclamation projects) or biochar when the microbiome is functioning and long-term goals such as carbon sequestration are more desirable.

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“…Biochar is a highly aromatic and carbon-rich substance formed by high-temperature pyrolysis and carbonization of biomass under oxygen-limited or anaerobic conditions ( Woolf et al, 2010 ). As biochar has porous, large specific surface area, strong adsorption capacity, rich carbon content, and other properties, it is widely used in agricultural land as an excellent soil improvement material ( Butnan et al, 2017 ; El-Naggar et al, 2018 ; Muhammad et al, 2018 ). The bulk density of biochar is around 0.08–0.5 g/cm 3 , smaller than that of soil (1.0–1.7 g/cm 3 ), and therefore, the biochar application significantly decreases the bulk density of the soil ( Wahi et al, 2017 ).…”

Section: Introductionmentioning

confidence: 99%

The Mixed Addition of Biochar and Nitrogen Improves Soil Properties and Microbial Structure of Moderate–Severe Degraded Alpine Grassland in Qinghai-Tibet Plateau

Zhao

Shao

et al. 2021

Front. Plant Sci.

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The degradation of the grassland system has severely threatened the safety of the ecological environment and animal husbandry. The supplement of key substances lost due to degradation is widely used to accelerate the restoration of the degraded grassland ecosystem. In this study, we investigated the effects of biochar and nitrogen addition on soil properties and microorganisms of degraded alpine grassland. The experimental treatments consisted of the control without any addition, only nitrogen addition (10 gN/m2), only biochar addition (4.00 kg/m2 biochar), and the mixed addition of biochar and nitrogen (4.00 kg/m2 biochar and 10 gN/m2 nitrogen, respectively). Adding N alone did not significantly change the pH, total organic carbon (TOC), total nitrogen (TN), microbial biomass (MB), and the composition proportion of microbes of the soil, but increased the contents of soil water content (SWC), NH4+-N, NO3–-N, available phosphorus (AP), and the biomass of bacteria and fungi. The addition of biochar or the mixture of biochar and nitrogen increased the contents of pH, TOC, TN, MB, SWC, NH4+-N, NO3–-N, AP, bacteria, and fungi in the soil and changed the structure of the soil microbial community. The increasing intensity of AP, bacteria, and fungi under the addition of biochar or the mixture of biochar and nitrogen was significantly greater than that under N addition alone. These results indicated that the separated addition of nitrogen and biochar and the mixed addition of biochar and nitrogen all improved the soil condition of the moderate–severe degraded alpine grassland, but the mixed addition of biochar and nitrogen could be a better strategy to remediate the degraded alpine grassland.

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Biochar properties affecting carbon stability in soils contrasting in texture and mineralogy

Cited by 12 publications

References 32 publications

Biochar-Soil-Plant interactions: A cross talk for sustainable agriculture under changing climate

Biochar-Soil-Plant interactions: A cross talk for sustainable agriculture under changing climate

Biochar and compost effects on soil microbial communities and nitrogen induced respiration in turfgrass soils

The Mixed Addition of Biochar and Nitrogen Improves Soil Properties and Microbial Structure of Moderate–Severe Degraded Alpine Grassland in Qinghai-Tibet Plateau

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