Effects of Biochar and its Reapplication on Soil pH and Sorption Properties of Silt Loam Haplic Luvisol

Juriga, Martin; Šimanský, Vladimí­r

doi:10.2478/ahr-2019-0012

Cited by 17 publications

(12 citation statements)

References 34 publications

(36 reference statements)

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“…In our study, the unamended soil pH (KCl) was 5.7, and the biochar-amended soil pH (KCl) was 8.8. This increase could provide a more optimal soil environment for barley plants [59], with similar agronomic benefits arising from lime amendment of acid soils [30,[60][61][62]. Considering this, biochar may be a valuable tool in the management of agroecosystems and a plausible way to ameliorate acidic soils in particular, as suggested in a previous study by Horák [63].…”

Section: Soil Chemical Propertiesmentioning

confidence: 92%

A Sustainable Approach for Improving Soil Properties and Reducing N2O Emissions Is Possible through Initial and Repeated Biochar Application

et al. 2021

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Recent findings of changing climate, water scarcity, soil degradation, and greenhouse gas emissions have brought major challenges to sustainable agriculture worldwide. Biochar application to soil proves to be a suitable solution to these problems. Although the literature presents the pros and cons of biochar application, very little information is available on the impact of repeated application. In this study, we evaluate and discuss the effects of initial and reapplied biochar (both in rates of 0, 10, and 20 t ha−1) combined with N fertilization (at doses of 0, 40, and 80 kg ha−1) on soil properties and N2O emission from Haplic Luvisol in the temperate climate zone (Slovakia). Results showed that biochar generally improved the soil properties such as soil pH(KCl) (p ≤ 0.05; from acidic towards moderately acidic), soil organic carbon (p ≤ 0.05; an increase from 4% to over 100%), soil water availability (an increase from 1% to 15%), saturated hydraulic conductivity (an increase from 5% to 95%). The effects were more significant in the following cases: repeated rather than single biochar application, higher rather than lower biochar application rates, and higher rather than lower N fertilization levels. Initial and repeated biochar applications, leading to N2O emissions reduction, can be related to increased soil pH(KCl).

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Section: Soil Chemical Propertiesmentioning

confidence: 92%

A Sustainable Approach for Improving Soil Properties and Reducing N2O Emissions Is Possible through Initial and Repeated Biochar Application

et al. 2021

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“…Biochar is a solid, carbon-rich product and is formed during the thermochemical decomposition of various types of organic materials (Shackley et al, 2016). Application of biochar is reported to improve soil chemical (Juriga and Šimanský, 2019;Liang et al 2006), physical (Balashov et al, 2019;Igaz et al, 2018;Toková et al, 2019;Vítková et al, 2017) and biological properties (Lehmann et al, 2011). Biochar also can increase crop yields (Kondrlová et al, 2017), reduce GHG emissions and increase soil carbon sequestration (Lehmann et al, 2006;Šimanský et al, 2018b).…”

Section: Introductionmentioning

confidence: 99%

The importance of initial application and reapplication of biochar in the context of soil structure improvement

Juriga

Aydın

Hořák

et al. 2021

Journal of Hydrology and Hydromechanics

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It was shown that the use of biochar provides many benefits to agriculture by improving the whole complex of soil properties, including soil structure. However, the diverse range of biochar effects depends on its physicochemical properties, its application rates, soil initial properties etc. The impacts of biochar, mainly its reapplication to soils and its interaction with nitrogen in relation to water-stable aggregates (WSA) did not receive much attention to date. The aims of the study were: (1) to evaluate the effect of initial application (in spring 2014) and reapplication (in spring 2018) of different biochar rates (B0, B10 and B20 t ha−1) as well as application of biochar with N-fertilizer (40 to 240 kg N ha−1 depending on the requirement of the cultivated crop) on the content of WSA as one of the most important indicators of soil structure quality, (2) to assess the interrelationships between the contents of soil organic matter (SOM) and WSA. The study was conducted in 2017–2019 as part of the field experiment with biochar on Haplic Luvisol at the experimental station of SUA in Nitra, Slovakia. Results showed that initial application as well as reapplication of biochar improved soil structure. The most favorable changes in soil structure were found in N0B20B treatment (with biochar reapplication) at which a significantly higher content of water-stable macro-aggregates (WSAma) (+15%) as well as content of WSAma size fractions of > 5 mm, 5–3 mm, 3–2 mm and 2–1 mm (+72%, +65%, +57% and +64%, respectively) was observed compared to the control. An increase in SOM content, due to both, initial biochar application and its reapplication, significantly supported the stability of soil aggregates, while organic matter including humic substances composition did not.

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“…Contradictory results have been noticed in literature, where some studies reported a significant increase (Zhang et al 2019;Chintala et al 2014) and others noted no significant increment in soil pH with biochar application (Liu et al 2012;Li et al 2020). The range of changes in pH and acidity depends on soil type, soil texture, fertiliser management and type of biochar used (Juriga & Šimanský, 2019). The application of biochar plays both roles, which can decrease and increase soil pH.…”

Section: Resultsmentioning

confidence: 99%

Effect of wood vinegar and rice husk biochar on soil properties and growth performances of immature kenaf (Hibiscus cannabinus) planted on BRIS soil

Jusoh

Xin

Ywih

et al. 2021

JTRSS

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Beach ridges interspersed with swales (BRIS) soil is identified as one of Malaysia's problematic soil since this type of soil contains a plethora portion of sand texture that contributes to water and nutrient leaching causes infertile soil. A polybag trial was conducted to evaluate the effects of wood vinegar and rice husk biochar on soil properties and growth performances of immature kenaf. The plant was arranged in a completely randomised design with four treatments and three replications. The factors taken for the experiment were four different media compositions, i.e., T1(control), T2(BRIS soil amended with wood vinegar, WV), T3(BRIS soil amended with rice husk biochar, RHB) and T4(BRIS soil amended with wood vinegar and rice husk biochar, WV+RHB). Rice husk biochar and a combination of wood vinegar with rice husk biochar significantly improved soil properties in terms of soil moisture content, organic matter, water retention and soil porosity, as well as significantly increased the kenaf stem diameter. However, there was no significant difference in plant height, number of leaves, leaves area and chlorophyll content on different treatments medium. In conclusion, the application of rice husk biochar and wood vinegar in this study enhanced BRIS soil properties and showed a positive effect on the growth of immature kenaf.

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Effects of Biochar and its Reapplication on Soil pH and Sorption Properties of Silt Loam Haplic Luvisol

Cited by 17 publications

References 34 publications

A Sustainable Approach for Improving Soil Properties and Reducing N2O Emissions Is Possible through Initial and Repeated Biochar Application

A Sustainable Approach for Improving Soil Properties and Reducing N2O Emissions Is Possible through Initial and Repeated Biochar Application

The importance of initial application and reapplication of biochar in the context of soil structure improvement

Effect of wood vinegar and rice husk biochar on soil properties and growth performances of immature kenaf (Hibiscus cannabinus) planted on BRIS soil

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