Mutual relationships of biochar and soil pH, CEC, and exchangeable base cations in a model laboratory experiment

Hailegnaw, Niguss Solomon; Mercl, Filip; Pračke, Kateřina; Száková, Jiřina; Tlustoš, Pavel

doi:10.1007/s11368-019-02264-z

Cited by 165 publications

(89 citation statements)

References 37 publications

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“…On the other hand, no significant variations were detected between these two amendments. Generally, biochar, which is a porous material, has the potentiality to retain soil moisture (Bassouny &de Jusus Duarte et al, 2019) and also restore soil fertility (Novak et al, 2019) because of its high organic carbon content (Song et al, 2019) and plant nutrients in ash (Novak et al, 2019).The results obtained herein agree with those reported by Hailegnaw et al (2019) who found significant changes in soil pH, CEC, and exchangeable Ca 2+ , K + , and Mg 2+ owing to the application of biochar. Likewise, Jien (2019) recorded significant reductions in soil bulk density, penetration resistance, soil losses while increased water retention capacity, aggregation stability and crop production in soils amended with biochar.…”

Section: Discussionsupporting

confidence: 85%

Ameliorating a sandy soil using biochar and compost amendments and their implications as slow release fertilizers on plant growth

Elshony

Farid

Al-Kamar³

et al. 2019

Egypt.J. Soil Sci.

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Section: Discussionsupporting

confidence: 85%

Ameliorating a sandy soil using biochar and compost amendments and their implications as slow release fertilizers on plant growth

Elshony

Farid

Al-Kamar³

et al. 2019

Egypt.J. Soil Sci.

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“…Bamboo biochar has greater potential for retaining water compared to other feedstocks such as rice husk and wood. In this study, the water holding capacity of bamboo char varied from 3.22 to 4.21 g g −1 , while that of Miscanthus biochar, Cateenga, and Cashew wood biochars was 0.31-0.49, 0.61-2.64, and 0.28-0.60 g g −1 , respectively (Gondim et al 2018;Mimmo et al 2014). Bamboo biochar also increased the plant-available water in soil to a much greater extent than that of rice husk char (Hien et al 2017).…”

Section: Increase In Water Holding Capacitymentioning

confidence: 73%

“…The application of biochar to low CEC soil may increase this value of the soil-biochar mixture. However, the degree of enhancement is dependent on the soil, biochar, and biochar dose (Chintala et al 2014;Hailegnaw et al 2019).…”

Section: Increase In Soil Fertilitymentioning

confidence: 99%

Enhancing soil water holding capacity and provision of a potassium source via optimization of the pyrolysis of bamboo biochar

Hien

Tsubota

Taniguchi

et al. 2020

Biochar

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Rapid expansion of cultivated bamboo negatively impacts on biodiversity and soil microbial community. As such, it is important to properly manage and use bamboo to prevent and control such issues. This study focuses on optimizing pyrolysis conditions to produce bamboo biochar for agricultural soil amendment, particularly soil potassium (K) and water holding capacity. Bamboo chips were pyrolyzed under nitrogen gas at 400, 600, and 800 °C for 1 and 2 h of retention. A total of six biochar products were created: 400-1 (i.e., 400 °C in 1 h), 400-2, 600-1, 600-2, 800-1, and 800-2. The 600 °C bamboo biochar products were observed to have the greatest potential in increasing soil K and water holding capacity. The 600-1 product had the highest potassium content (4.87%), with a water holding capacity of 3.73 g g −1 , while the 600-2 product had the second-highest potassium content (4.13%) and the highest water holding capacity (4.21 g g −1) and cation exchange capacity. The K release in 600 °C products was larger and slower than that of the 400 °C and 800 °C products, respectively. The results also indicated that the physicochemical characteristics of bamboo biochar, such as yield, pH, surface area, water holding capacity, and K content, were significantly impacted by temperature, retention time, or a combination of these parameters. The outcomes from this study are a valuable reference for bamboo biochar production targeting agricultural soil amendment, particularly when it is directed at increasing soil K and water holding capacity.

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“…According to earlier studies [54,[59][60][61], biochar application has an evident influence on essential macronutrients' availability. Significant differences have been reported in this experiment for K, Ca, Mg, and their ratios.…”

Section: Growing Substrates Changes and Leaves' Nutrient Contentsmentioning

confidence: 99%

Effects of Biochar Application in a Sorghum Crop under Greenhouse Conditions: Growth Parameters and Physicochemical Fertility

et al. 2020

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Application of biochar from vine shoots (Vitis vinifera L.) as an organic amendment in the soil is an alternative agricultural management of interest. The behavior of this type of amendment in the soil requires more information to adjust the pyrolysis conditions in order to obtain a high-quality biochar. The aim of this work is determining the influence of the application of this type of biochar on the soil-plant system. For this purpose, an agronomic test was performed in greenhouse pots. A randomized tri-factorial block design was adopted with the following factors: final pyrolysis temperature (400 and 600 °C), application rate (0 wt. % as a control, 1.5 and 3 wt. %) and texture of the growing media (sandy-loam and clay-loam origin). The selected crop was sorghum (Sorghum bicolor L. Moench), the development and production of which was evaluated during two complete growing cycles under greenhouse conditions. Application of biochar produced at 400 °C significantly increased plants roots dry weight in the sandy-loam growing substrate (52% compared to the control). Grain production was also significantly affected by biochar application, showing better results after addition of biochar produced at 400 °C. Water holding capacity and K, Ca, and Mg contents were enhanced by biochar addition, with evident effects of the application ratios for some of these variables. The effect on the pH of substrates in the sandy-loam texture was weak; however, a significant decrease was observed after the addition of biochar produced at 600 °C.

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Mutual relationships of biochar and soil pH, CEC, and exchangeable base cations in a model laboratory experiment

Cited by 165 publications

References 37 publications

Ameliorating a sandy soil using biochar and compost amendments and their implications as slow release fertilizers on plant growth

Ameliorating a sandy soil using biochar and compost amendments and their implications as slow release fertilizers on plant growth

Enhancing soil water holding capacity and provision of a potassium source via optimization of the pyrolysis of bamboo biochar

Effects of Biochar Application in a Sorghum Crop under Greenhouse Conditions: Growth Parameters and Physicochemical Fertility

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