Biochar impacts on soil chemical properties, greenhouse gas emissions and forage productivity: A field experiment

Ginebra, Milagros; Muñoz, Cristina; Pereira, Roberto Calvelo; Doussoulin, Marcelo; Zagal, Erick

doi:10.1016/j.scitotenv.2021.150465

Cited by 38 publications

(32 citation statements)

References 58 publications

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“…The inhibition of CO 2 release from the soil following the application of biochar has also been demonstrated by Liang et al (2010). Moreover, research has proven that biochar can lower the emission of CO 2 as well as the release of nitrous oxide (N 2 O) and methane (CH 4 ) from the soil (Ameloot et al, 2015;Ginebra et al, 2022;Nelissen et al, 2014). In our study, however, no inhibition of CO 2 emission was observed.…”

Section: Resultssupporting

confidence: 54%

“…As expected, the application of pyrolysed digestate, owing to the high carbon concentration in this fertilizer, produced the highest increase in the total carbon content in the soil. Numerous papers have confirmed that with its high carbon content, including stable carbon, biochar contributes to the improvement of the carbon balance in the soil (Galvez et al, 2012;Ginebra et al, 2022;Mohan et al, 2014;Sigua et al, 2014).…”

Section: Resultsmentioning

confidence: 98%

See 1 more Smart Citation

Chemical, biological and respirometry properties of soil under perennial crops fertilized with digestate

Radawiec¹,

Gołaszewski²,

Kalisz³

et al. 2023

Int. Agrophys.

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Section: Resultssupporting

confidence: 54%

Section: Resultsmentioning

confidence: 98%

Chemical, biological and respirometry properties of soil under perennial crops fertilized with digestate

Radawiec¹,

Gołaszewski²,

Kalisz³

et al. 2023

Int. Agrophys.

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“…But it does not apply to all soils and the effect is not always positive (Zhang et al, 2019). The effect of biochar on microbes is not certain and the diversity of biochar and soil types means the practical effect in different soil types cannot be generalized (Jeffery et al, 2015;Pan et al, 2016;Ginebra et al, 2022). This positive or negative effect is not clear but we do think it might be related to changes in chemical properties after biochar pyrolysis, soil PH and nutrients (Paz-Ferreiro et al, 2011;Gomez et al, 2014).…”

Section: Introductionmentioning

confidence: 92%

Response of bacterial community composition and co-occurrence network to straw and straw biochar incorporation

Zhang²,

Wang³

et al. 2022

Front. Microbiol.

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Microbial decomposition plays a crucial role in the incorporation of straw and straw biochar (SSB) into soil. Lime concretion black soil (LCBS) is a typical low-medium crop yield soil, and it is also one of the main soil types for grain production in China. However, the link between SSB additions and soil bacterial communities in LCBS remains unclear. This study explored the effects of SSB incorporation on bacterial community composition, structure and co-occurrence network patterns at different soil depths and maize growth stages. The results showed that soil PH, soil organic matter and total nitrogen significantly affected the seasonality and stratification of the soil bacterial community. The composition and diversity of bacterial communities were significantly affected by growth period and treatment rather than soil depth. Specifically, the bacterial community diversity increased significantly with crop growth at 0–20 cm, decreased the relative abundance of Actinobacteria, and increased the relative abundance of Proteobacteria and Acidobacteria. SF (straw with fertilizer) and BF (straw biochar with fertilizer) treatments decreased bacterial community diversity. Co-occurrence networks are more complex in BF, S (straw), and SF treatments, and the number of edge network patterns is increased by 92.5, 40, and 60% at the maturity stage compared with F (fertilizer) treatment, respectively. Moreover, the positive effect of straw biochar on the bacterial network pattern increased with time, while the effect of straw weakened. Notably, we found that rare species inside keystone taxa (Gemmatimonadetes and Nitrospirae) play an indispensable role in maintaining bacterial network construction in LCBS. This study offers a comprehensive understanding of the response of soil bacterial communities to SSB addition in LCBS areas, and provides a reference for further improvement of LCBS productivity.

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“…All these factors should contribute to increased crop production. Aside from agriculture, the incorporation of biochar as a soil amendment has other beneficial environmental effects, e.g., removing inorganic contaminants from soils and water, such as pharmaceuticals ( Jung et al, 2015 ; Du et al, 2021 ), heavy metals, or pesticides ( Cao et al, 2011 ; Ali et al, 2019 ); carbon sequestration and reduction of greenhouse gas emissions ( Bi et al, 2019 ; Ginebra et al, 2022 ) or energy production (reviewed in Bhatia et al, 2021 ), among others.…”

Section: Introductionmentioning

confidence: 99%

Overview of the use of biochar from main cereals to stimulate plant growth

2022

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The total global food demand is expected to increase up to 50% between 2010 and 2050; hence, there is a clear need to increase plant productivity with little or no damage to the environment. In this respect, biochar is a carbon-rich material derived from the pyrolysis of organic matter at high temperatures with a limited oxygen supply, with different physicochemical characteristics that depend on the feedstock and pyrolysis conditions. When used as a soil amendment, it has shown many positive environmental effects such as carbon sequestration, reduction of greenhouse gas emissions, and soil improvement. Biochar application has also shown huge benefits when applied to agri-systems, among them, the improvement of plant growth either in optimal conditions or under abiotic or biotic stress. Several mechanisms, such as enhancing the soil microbial diversity and thus increasing soil nutrient-cycling functions, improving soil physicochemical properties, stimulating the microbial colonization, or increasing soil P, K, or N content, have been described to exert these positive effects on plant growth, either alone or in combination with other resources. In addition, it can also improve the plant antioxidant defenses, an evident advantage for plant growth under stress conditions. Although agricultural residues are generated from a wide variety of crops, cereals account for more than half of the world’s harvested area. Yet, in this review, we will focus on biochar obtained from residues of the most common and relevant cereal crops in terms of global production (rice, wheat, maize, and barley) and in their use as recycled residues to stimulate plant growth. The harvesting and processing of these crops generate a vast number and variety of residues that could be locally recycled into valuable products such as biochar, reducing the waste management problem and accomplishing the circular economy premise. However, very scarce literature focused on the use of biochar from a crop to improve its own growth is available. Herein, we present an overview of the literature focused on this topic, compiling most of the studies and discussing the urgent need to deepen into the molecular mechanisms and pathways involved in the beneficial effects of biochar on plant productivity.

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Biochar impacts on soil chemical properties, greenhouse gas emissions and forage productivity: A field experiment

Cited by 38 publications

References 58 publications

Chemical, biological and respirometry properties of soil under perennial crops fertilized with digestate

Chemical, biological and respirometry properties of soil under perennial crops fertilized with digestate

Response of bacterial community composition and co-occurrence network to straw and straw biochar incorporation

Overview of the use of biochar from main cereals to stimulate plant growth

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