A review on biochar’s effect on soil properties and crop growth

Premalatha, R. P.; Bindu, J.; Nivetha, E.; Malarvizhi, P.; Manorama, K.; Parameswari, E.; Davamani, V.

doi:10.3389/fenrg.2023.1092637

Cited by 15 publications

(7 citation statements)

References 262 publications

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“…These characteristics significantly influence the soil properties while using biochar as an amendment in a specific soil. 12 The biochar properties are also influenced by the biochar feedstock (BF) (source of biochar: wood, grain, straw, and waste material) 13 and biochar pyrolysis temperature (BPT) (used during the process of formation of biochar). 14,15 The use of biochar prepared from different feedstocks and BPT showed varying results in improving the acidic soil properties.…”

Section: Introductionmentioning

confidence: 99%

“…The characteristics of biochar include its physicochemical properties such as biochar pH (BpH), biochar electrical conductivity (BEC), biochar cation exchange capacity (BCEC), biochar total N (BN), biochar total P (BP), biochar total K (BK), biochar ash (BAs), bulk density (BBD), biochar C/N ratio (BC/N), and pore size. These characteristics significantly influence the soil properties while using biochar as an amendment in a specific soil . The biochar properties are also influenced by the biochar feedstock (BF) (source of biochar: wood, grain, straw, and waste material) and biochar pyrolysis temperature (BPT) (used during the process of formation of biochar). , The use of biochar prepared from different feedstocks and BPT showed varying results in improving the acidic soil properties.…”

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: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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 is a carbon-rich and insoluble solid material obtained by high-temperature pyrolysis of agricultural and forestry wastes under anaerobic or anoxic conditions ( Premalatha et al., 2023 ). It primarily comprises carbon (C), hydrogen (H), oxygen (O), nitrogen (N), and other essential plant nutrients such as phosphorus (P), potassium (K), calcium (Ca), and magnesium (Mg) ( Danesh et al., 2023 ).…”

Section: Introductionmentioning

confidence: 99%

Persistent effects of swine manure biochar and biogas slurry application on soil nitrogen content and quality of lotus root

Zhang,

Cui,

et al. 2024

Front. Plant Sci.

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Using swine manure biochar and biogas slurry in agriculture proves to be an effective strategy for soil improvement and fertilization. In this study, a pot trial on the growth of lotus root was conducted to investigate the persistent effects of applying 350°C swine manure biochar (1% and 2%) and biogas slurry (50% and 100%) on soil nitrogen nutrient and lotus root quality. The results showed that compared to chemical fertilizer alone (A0B0), swine manure biochar significantly increased soil nitrogen content after one year of application. The contents of total nitrogen (TN), alkali-hydrolyzed nitrogen (AHN), ammonium nitrogen (NH4+-N), and nitrate nitrogen (NO3− −N) increased by 17.96% to 20.73%, 14.05% to 64.71%, 17.76% to 48.68% and 2.22% to 8.47%, respectively, during the rooting period. When swine manure biochar was present, the application of biogas slurry further elevated soil nitrogen content. The co-application of swine manure biochar and biogas slurry significantly increased soil nitrogen content, and the 100% nitrogen replacement with biogas slurry combined with 2% swine manure biochar (A2B2) treatment exhibited the most significant enhancement effect during whole plant growth periods. Soil enzyme activities, including soil protease (NPT), leucine aminopeptidase (LAP), b-glucosidase (β-GC) and dehydrogenase (DHA), showed a tendency to increase and then decrease with the prolongation of lotus root fertility period, reaching the maximum value during the rooting period. Compared to A0B0, the treatment with 2% swine manure biochar had the most significant effect on enzyme activities and increased the lotus root’s protein, soluble sugar, and starch contents. Nitrate content decreased with the application of 2% swine manure biochar as the amount of biogas slurry increased. In conclusion, swine manure biochar effectively improved soil nitrogen content, enzyme activity, and lotus root quality. Even after one year of application, 2% swine manure biochar had the best enhancement effect.

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“…Biochar, which is made from pyrolyzed wastes that have a longer residence period than unpyrolyzed wastes, increases soil fertility by affecting the physiochemical and biological characteristics of the soil [18,19]. Many studies have shown that biochar has a good impact on soil characteristics and crop output [20][21][22]. Depending on the kind, dosage, and soil type, biochar features such as pH, increased surface area, cation exchange capacity, and nutrient content positively influence soil parameters and ultimately improve soil fertility [23].…”

Section: Introductionmentioning

confidence: 99%

The Fusion Impact of Compost, Biochar, and Polymer on Sandy Soil Properties and Bean Productivity

Kheir,

Govind,

Zoghdan

et al. 2023

Agronomy

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Two of the most significant issues confronting arid and semi-arid countries are soil degradation and the need to reclaim sandy soils and improve their properties to enhance the agricultural area and ensure food security. Many attempts to improve sandy soil properties have been attempted using soil amendments, but further research is needed to explore the combined impact of cost-effective amendments. To that purpose, we investigated the impact of various soil amendments, including single and combination applications of synthetic Super Absorbent Polymer (SAP), compost, and biochar, on sandy soil physiochemical characteristics and bean (Vicia faba L.) production and quality throughout three growing seasons. In a randomized complete block design with three replicates per treatment, different treatments such as control (without application), lower dose of SAP (SAP1), higher dose of SAP (SAP2), biochar, compost, SAP1 plus biochar, SAP1 plus compost, SAP2 plus biochar, SAP2 plus compost, and biochar plus compost were used. The combined treatments, such as SAP2 plus biochar (T8), SAP2 plus compost (T9), and biochar plus compost (T10), improved soil physiochemical characteristics and crop production significantly. Application of T10 decreased soil bulk density by 15%, 17%, and 13% while increasing soil available water by 10%, 6%, and 3% over the first, second, and third growing seasons, respectively, compared to untreated soil (T1). The application of treatment (T9) surpassed other treatments in terms of yield, quality, and economic return, significantly increasing the seed yield by 24%, 26%, and 27% for the first, second, and third season compared with untreated soil. The higher rate of polymer combined with compost could be considered a cost-effective soil amendment to improve sandy soil productivity in arid and semi-arid regions.

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A review on biochar’s effect on soil properties and crop growth

Cited by 15 publications

References 262 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

Persistent effects of swine manure biochar and biogas slurry application on soil nitrogen content and quality of lotus root

The Fusion Impact of Compost, Biochar, and Polymer on Sandy Soil Properties and Bean Productivity

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