Technology of Acid Soil Improvement with Biochar: A Review

Si, Hongyu; Liang, Xinhong; Lu, Jikai; Xiang, Weiran; Li, Yán; Wang, Bing; Wang, Haichao; Tang, Chaoli; He, Ling; Xin, Hanxiao

doi:10.1088/1755-1315/692/4/042098

Cited by 2 publications

(5 citation statements)

References 14 publications

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“…In the present study, BPT has a positive and significant correlation with BpH, BC, BAs, and BC/N but has a negative and significant correlation with BCEC and BN (Figure ), and the finding was consistent with the previous findings . The increase in the BpH with increasing BPT was because of the increase in the -COO- and -O- functional groups on the biochar surface and carbonization. , The results showed no significant relationship between BPT and BEC. However, the relationship of BPT with BEC is debatable and had contradictions in previous studies .…”

Section: Discussionsupporting

confidence: 91%

“…19 Moreover, the high contents of carbonates in the biochar also provided a liming effect which was produced because of high BPT during biochar preparation. 18 The BK and BP have no significant relationship with the acidic SpH in this study, which is in accordance with previous research 50 (Table 2). However, this study additionally found the BN subgroups increased the acidic SpH, but the BN ≤ 0.5% was more effective in increasing the acidic SpH according to the meta-analysis (Figure 3).…”

Section: The Soil Ph Influenced By Biochar Propertiessupporting

confidence: 92%

“…44 The increase in the BpH with increasing BPT was because of the increase in the -COO-and -O-functional groups on the biochar surface and carbonization. 18,19 The results showed no significant relationship between BPT and BEC. However, the relationship of BPT with BEC is debatable and had contradictions in previous studies.…”

Section: Effect Of Pyrolysismentioning

confidence: 84%

“…This may be because alkaline biochar has a high amount of -COO- and -O- functional groups on its surface . Moreover, the high contents of carbonates in the biochar also provided a liming effect which was produced because of high BPT during biochar preparation …”

Section: Discussionmentioning

confidence: 99%

“…17 Most of the previous research has found that biochar increases the acidic SpH, soil electrical conductivity (SEC), soil cation exchange capacity (SCEC), soil organic matter (SOM), and nutrients because of the liming effect of biochar, which develops the -COO-and -O-functional group and high carbonate contents of biochar. 18,19 Although the biochar increased the above soil properties, the results were not consistent as the neutral biochar decreased the SpH, 20 there was a negative 21 or no correlation 22 found between biochar application and SEC, the increase in the SCEC is related to the BF, 23 the increase in the SOM by biochar application is also highly dependent on the C/N ratio of applied biochar, and the retention of the nutrients in the soil after biochar application depends upon the BPT, BF, soil water contents, and doses of biochar. So, the meta-analysis provided a way to reanalyze how biochar influences acidic soil properties based on the publication.…”

Section: Introductionmentioning

confidence: 99%

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Biochar Application Can Improve Most of the Chemical Properties of Acidic Soils: A Global Meta-Analysis

Aurangzeib,

Zhang,

Yan

et al. 2024

ACS Agric. Sci. Technol.

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Biochar has been widely used to improve the properties of acidic soil properties. However, the effectiveness of biochar in acidic soil properties was debated and has been less focused on in previous reviews. The present meta-analysis aimed to determine the importance of the biochar pyrolysis temperature (BPT) and the effect of biochar properties on acidic soil properties. The Pearson correlation and a meta-analysis involving the data obtained from 50 peer-reviewed publications showed that BPT has a significant positive correlation with biochar pH (BpH), biochar total carbon, biochar ash (BAs), and the biochar carbon to nitrogen ratio (BC/N), and a significant negative correlation with biochar total nitrogen (BN). The biochar feedstock straw was more effective in increasing the acidic soil pH (SpH), soil electrical conductivity (SEC), soil available phosphorus (SAP), and soil organic matter (SOM). The biochar application rates ≥ 80 t ha −1 significantly increased the acidic SpH, soil available nitrogen (SAN), soil available potassium (SAK), and SOM. The BpH ≥ 10 increased all the observed acidic soil properties except SEC. The BC/N 30− 45 significantly increased SAN, SAP, and SOM, while the BC/N ≤ 30 was more effective at increasing SpH and SAK. The relationship of BN, biochar total phosphorus, and biochar total potassium with soil properties was inconsistent except that BN ≥ 1% not only increased the SAN but also increased the SAP and SAK. Except for SAK, BAs ≤ 15 significantly increased all observed soil properties. According to the PLS-SEM, BPT affects biochar properties and then affects soil properties (P < 0.05). Generally, the application of biochar in acidic soil increases all the observed soil properties according to the grand mean total effect size. This article gives us a clear image that if the SpH < 7, then BPT ≥ 800, BF straw, and BpH > 10 can be used to improve the acidic soil properties.

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Section: Discussionsupporting

confidence: 91%

Section: The Soil Ph Influenced By Biochar Propertiessupporting

confidence: 92%

Section: Effect Of Pyrolysismentioning

confidence: 84%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Biochar Application Can Improve Most of the Chemical Properties of Acidic Soils: A Global Meta-Analysis

Aurangzeib,

Zhang,

Yan

et al. 2024

ACS Agric. Sci. Technol.

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Dosis Biochar Diperkaya Silika Dan Arang Aktif Dalam Perbaikan Kapasitas Memegang Air, C-Organik Dan Kapasitas Tukar Kation Pada Inceptisol

Islamiati,

Citraresmini,

Tamad

2024

J. Tanah dan Sumberdaya Lahan

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Inceptisol is a widespread soil with a total of 37% of the land area in Indonesia. On the island of Java, Inceptisol has an intensive management intensity, one of which is in Kertasari District, Bandung Regency, West Java, which has a high potential for soil damage due to a decrease in the soil's ability to hold water. Biochar enriched with silica and activated charcoal Oil Palm Empty Fruit Bunches (OPEFB) is a type of organic soil amendment that can improve the ability of Inceptisol to hold water and support nutrient needs through organic C indicators and cation exchange capacity. The research was carried out by taking soil samples and then incubating them according to the treatment for 14 days. The experimental design used in the study was a non-factorial, Completely Randomized Design (CRD) method with 12 levels consisting of 3 L/ha of silica-enriched rice husk biochar and OPEFB's activated charcoal, with each in the range of 0-6.25 tons/ha. Measurement results of water holding capacity parameters, C-organic, and cation exchange capacity were analyzed statistically, and significant differences in responses were obtained from the treatments. The optimum dose for Inceptisol in Kertasari uses silica-enriched biochar to increase water holding capacity, organic C, and cation exchange capacity, respectively, at 4.92 tons/ha, 5.73 tons/ha, and 2.51 tons/ha. Otherwhile, OPEFB's activated charcoal was 1.7 tons/ha, 0.125 tons/ha, and 1.5 tons/ha, respectively.

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Technology of Acid Soil Improvement with Biochar: A Review

Cited by 2 publications

References 14 publications

Biochar Application Can Improve Most of the Chemical Properties of Acidic Soils: A Global Meta-Analysis

Biochar Application Can Improve Most of the Chemical Properties of Acidic Soils: A Global Meta-Analysis

Dosis Biochar Diperkaya Silika Dan Arang Aktif Dalam Perbaikan Kapasitas Memegang Air, C-Organik Dan Kapasitas Tukar Kation Pada Inceptisol

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