Varying pyrolysis temperature impacts application effects of biochar on soil labile organic carbon and humic fractions

Zhao, Shixiang; Ta, Na; Li, Zhonghui; Yang, Yan; Zhang, Xia; Liú, Dan; Zhang, Afeng; Wang, Xudong

doi:10.1016/j.apsoil.2017.09.007

Cited by 46 publications

(21 citation statements)

References 62 publications

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“…The significant differences were also identified between the rates of biochar after the application of biochar alone, where B20 treatment resulted in 18.91% (C HS ), 16.03% (C HA ) and 23.05% (C FA ) lower concentrations than B10. According to Zhao et al [2017], the different effect of biochars on the content of C HA and C FA depended on the different pyrolysis temperatures during the biochar production (300°C, 400°C, 500°C, 600°C). All tested types of biochar initially had a beneficial effect on C HA and C FA , however after a short time a decrease of C HA and C FA was observed in the case of biochar produced at a lower temperature (300°C, 400°C).…”

Section: Resultsmentioning

confidence: 99%

The Effect of Different Rates of Biochar and Biochar in Combination with N Fertilizer on the Parameters of Soil Organic Matter and Soil Structure

Juriga¹,

Šimanský²,

Hořák³

et al. 2018

J. Ecol. Eng.

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Since biochar is considered to be a significant source of carbon, in this work we have evaluated the changes in soil organic matter (SOM) and soil structure due to application of biochar and biochar with N fertilization, and have considered the interrelationships between the SOM parameters and the soil structure. The soil samples were collected from Haplic Luvisol at the locality of Dolná Malanta (Slovakia) during 2017. The field experiment included three rates of biochar application (B0-no biochar, B10-biochar at the rate of 10 t ha-1 , B20-biochar at the rate of 20 t ha-1) and three levels of N fertilization (N0-no nitrogen, N160-nitrogen at the rate of 160 kg ha-1 , N240-nitrogen at the rate of 240 kg ha-1). The rate of biochar at 20 t ha-1 caused an increase in the organic carbon (C org) content. The combination of both rates of biochar with 160 and 240 kg N ha-1 also caused an increase in C org. In the case of B20 the extractability of humic substances carbon (C HS) was 17.79% lower than at B0. A significant drop was also observed in the values of the extraction of humic acids carbon (C HA) and fulvic acids carbon (C FA) after the addition of biochar at a dose of 20 t ha-1 with 160 kg N ha-1. However, both rates of biochar had a significant effect at 240 kg N ha-1. After application of 20 t ha-1 of biochar the content of water-stable macro-aggregates (WSA ma) significantly increased compared to control. This rate of biochar also increased the mean weight diameter (MWD W) and the index of water-stable aggregates (Sw) and decreased the coefficient of vulnerability (Kv). The biochar at a rate of 20 t ha-1 with 240 kg N ha-1 the value of MWD W increased and value of Kv decreased significantly. The contents of C org and C L correlated positively with WSA ma , MWD W and Sw and negatively with WSA mi and Kv. The extraction of C HA and C FA was in negative relationship with MWD W. We conclude that the application of biochar and biochar combined with N fertilizer had a positive influence on SOM and soil structure.

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Section: Resultsmentioning

confidence: 99%

The Effect of Different Rates of Biochar and Biochar in Combination with N Fertilizer on the Parameters of Soil Organic Matter and Soil Structure

Juriga¹,

Šimanský²,

Hořák³

et al. 2018

J. Ecol. Eng.

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“…Soil humus % was raised following BC treatment with or without biofertilizer. Similarly, a short-term laboratory incubation experiment showed that biochar incorporated into soil plays a positive role in promoting the formation of soil humus [46–47], which may be beneficial to the stability of soil aggregate stability. Soil chemical properties, such as available P, EC, NO 3 − , and humus %, slightly improved with biofertilizer application, although not statistically significantly, suggesting that the use of TUAT-1 inoculant biofertilizer did not influence soil physicochemical properties.…”

Section: Discussionmentioning

confidence: 99%

Influence of rice-husk biochar and Bacillus pumilus strain TUAT-1 on yield, biomass production, and nutrient uptake in two forage rice genotypes

et al. 2019

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Biochar is widely used as a soil amendment to increase crop yields. However, the impact of the interaction between the biochar and microbial inoculants (e.g., biofertilizer) on plant nutrient uptake and yield in forage rice is not fully understood. A greenhouse study was conducted to evaluate the synergistic effects of rice-husk biochar and Bacillus pumilus strain TUAT-1 biofertilizer application on growth, yield, and nutrient uptake in two forage rice genotypes; Fukuhibiki and the newly bred line, LTAT-29. Positive effects of biochar and biofertilizer, alone or in a combination, on growth traits, nutrient uptake, and yield components were dependent on the rice genotypes. Biochar and TUAT-1 biofertilizer influenced the overall growth of plants positively and increased straw and above-ground biomass in both genotypes. However, although biochar application significantly increased grain yield in LTAT-29, this was not the case in Fukuhibiki. Biochar and TUAT-1 biofertilizer, either alone or combined, significantly affected plant nutrient uptake but the effect largely depended on rice genotype. Results of this study indicate that biochar amendment and TUAT-1 biofertilizer can enhance forage rice productivity depending on genotypes, and therefore, there is a need to consider plant genetic composition when evaluating the potential for crop response to these soil amendments before application on a commercial scale.

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“…The addition of BioC could also have an effect on the pool and chemical properties of the OM in soils 19 , 20 , particularly on HAs. This fraction (HAs) plays a special role among OM compounds by affecting the physical 21 , chemical 22 , and biological 23 properties of the soil.…”

Section: Introductionmentioning

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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Varying pyrolysis temperature impacts application effects of biochar on soil labile organic carbon and humic fractions

Cited by 46 publications

References 62 publications

The Effect of Different Rates of Biochar and Biochar in Combination with N Fertilizer on the Parameters of Soil Organic Matter and Soil Structure

The Effect of Different Rates of Biochar and Biochar in Combination with N Fertilizer on the Parameters of Soil Organic Matter and Soil Structure

Influence of rice-husk biochar and Bacillus pumilus strain TUAT-1 on yield, biomass production, and nutrient uptake in two forage rice genotypes

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

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