Biochar to Improve the Quality and Productivity of Soils

Ścisłowska, M.; Włodarczyk, Renata; Kobyłecki, Rafał; Bis, Zbigniew

doi:10.12911/22998993/2802

Cited by 25 publications

(14 citation statements)

References 1 publication

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“…These conclusions are consistent also with the results of research on impact of a woody BioC on properties of a sandy loam soil and spring barley 50 , which demonstrated that BioC has a long-term effect, noticeable only a few years after its application to the soil. The effect of carboxylic groups of BioC is interesting because BioC production by biomass pyrolysis results in the partial degradation of oxygen-containing functional groups 51 , 52 . No similar changes were observed in the distribution of dissociation constants of grassland amended with BioC (Fig.…”

Section: Resultsmentioning

confidence: 99%

The influence of biochar on the content of carbon and the chemical transformations of fallow and grassland humic acids

Cybulak

Sokołowska

Boguta

2021

Sci Rep

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There is limited information regarding the effect of biochar (BioC) on the fertility of fallow and grassland soils, as well as on the properties of their humic acids (HAs). The objective of this study was to evaluate with a 3-year field experiment the influence of BioC on the organic matter (OM) in Haplic Luvisol. BioC (obtained via wood waste pyrolysis at 650 °C) was applied to the soil of subplots under fallow and grassland at doses of 0, 1, 2 and 3 kg m−2. The soil samples were collected eight times. The physicochemical properties were determined for the soil and BioC by analysing the density, pH, surface charge, ash, and organic carbon content. Based on the changes in the structure of the HAs and their quantity in the soils, the chemical properties of the HAs were determined. The maximum BioC dose caused an increase in the content of Corg and HAs. BioC did not influence the humification degree coefficients of the HAs originated from fallow, whereas in the grassland, there were significant changes observed in these coefficient values, indicating that BioC may stimulate and accelerate the humification process of soil HAs. Increasing the BioC doses caused an increase in the soil’s HA content, suggesting an increase in soil sorption capacity. The fluorescence data showed BioC addition to the soil caused an increase in the number of structures characterised by low molecular weight and a low degree of humification.

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Section: Resultsmentioning

confidence: 99%

The influence of biochar on the content of carbon and the chemical transformations of fallow and grassland humic acids

Cybulak

Sokołowska

Boguta

2021

Sci Rep

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“…The feedstock was transported along the retort via a steel screw conveyor which allowed for easy and simple adjustment and control of the feedstock residence time and its transport velocity within the retort. The control of these parameters was crucial for the production of biochar with the desired parameters (carbon content and porosity) [ 32 ]. The pyrolysis process of the sunflower husk was carried out at inert atmosphere with no external gas at 650 °C for roughly 15 min.…”

Section: Methodsmentioning

confidence: 99%

Effect of Fine Size-Fractionated Sunflower Husk Biochar on Water Retention Properties of Arable Sandy Soil

et al. 2021

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Biochar application has been reported to improve the physical, chemical, and hydrological properties of soil. However, the information about the size fraction composition of the applied biochar as a factor that may have an impact on the properties of soil‑biochar mixtures is often underappreciated. Our research shows how sunflower husk biochar (pyrolyzed at 650 °C) can modify the water retention characteristics of arable sandy soil depending on the biochar dose (up to 9.52 wt.%) and particle size (<50 µm, 50–100 µm, 100–250 µm). For comparison, we used soil samples mixed with biochar passed through 2 mm sieve and an unamended reference. The addition of sieved biochar to the soil caused a 30% increase in the available water content (AWC) in comparing to the soil without biochar. However, the most notable improvement (doubling the reference AWC value from 0.078 m3 m−3 to 0.157 m3 m−3) was observed at the lowest doses of biochar (0.95 and 2.24 wt.%) and for the finest size fractions (below 100 µm). The water retention effects on sandy soil are explained as the interplay between the dose, the size of biochar particles, and the porous properties of biochar fractions.

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“…After measurement of fresh biomass weight of individual plants (2 plants from each pot), the biomass was dried (105 °C for 1 h). The analysis of plant biomass was made according to Polish Standard PN-G-04560:1998P [29].…”

Section: Experimental Plan Soil Material Organic and Inorganic Amenmentioning

confidence: 99%

The Role of Organic and Inorganic Amendments in Carbon Sequestration and Immobilization of Heavy Metals in Degraded Soils

Placek¹,

Grobelak²,

Hiller³

et al. 2017

J. sustain. dev. energy water environ. syst.

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To investigate the effect of organic and inorganic amendments on heavy metal immobilization in soil and organic carbon sequestration, a growth chamber study over a period of 18 months was conducted. Phytoremediation of two degraded soils, smelter-polluted soil and post-mining soil, was carried out using Scots Pine (Pinus Sylvestris L.) and Giant Miscanthus (Miscanthus x Giganteus). The increase in organic carbon content for lake chalk amended soils was noted. In addition, the largest root biomass production after fertilization of heavy metal contaminated soil with lake chalk was observed. This soil additive increases soil pH and reduces heavy metal mobility, which finally minimizes the harmful effect of metals on plant life and growth. Root biomass production of Giant Miscanthus was significantly higher than Scots Pine root biomass for both soils. This may indicate better phytosequestration properties of Giant Miscanthus, especially in the case of land degradation due to mining and destruction of soil profiles.

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Biochar to Improve the Quality and Productivity of Soils

Cited by 25 publications

References 1 publication

The influence of biochar on the content of carbon and the chemical transformations of fallow and grassland humic acids

The influence of biochar on the content of carbon and the chemical transformations of fallow and grassland humic acids

Effect of Fine Size-Fractionated Sunflower Husk Biochar on Water Retention Properties of Arable Sandy Soil

The Role of Organic and Inorganic Amendments in Carbon Sequestration and Immobilization of Heavy Metals in Degraded Soils

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