Grain size-induced changes in carbon and nitrogen concentrations and characteristics of tomato harvest residue biochar

İlay, Remzi; Kavdır, Yasemin; Memici, Murat; Eki̇nci̇, Kamil

doi:10.1007/s13762-020-02751-8

Cited by 12 publications

(2 citation statements)

References 33 publications

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“…The size of biochar particles can be further changed by post-pyrolysis mechanical treatment (e.g., sieving or grinding). Different size fractions of biochar obtained in the same process can have a varied composition and properties [ 11 , 12 ]. Various biochar size fractions in soil can influence, for example, hydraulic conductivity [ 10 ], water retention [ 4 , 13 ], soil aggregate stability [ 4 ], permanent willing point, field capacity [ 14 , 15 ], and microbial retention [ 16 ].…”

Section: Introductionmentioning

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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Section: Introductionmentioning

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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“…The loose and porous nature of the biochar surface can provide a good living environment for microorganisms (Han et al 2021;Hannet et al 2021), while its nutrient elements facilitate the growth and reproduction of microorganisms, further contributing to increasing soil nutrient retention (Wang et al 2021), improving soil fertilizer e ciency (Wang et al 2021). Biochar can also improve soil bacterial structure effectively (Berisso et al 2012;de Lima et al 2017), and contribute to the survival of bene cial bacteria, thus improving the soil in the long term (Emmet-Booth et al 2020;İlay et al 2020).…”

Section: Introductionmentioning

confidence: 99%

Effects of Biochar Application on Soil Nitrogen Conversion and Microbial Community Composition

Zhao

Wang

Liu

et al. 2021

Preprint

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In northeastern China, successive years of cultivation have led to a decline in soil quality, a process that is exacerbated by the over-application of chemical fertilizers to ensure staple food production. The large amount of straw produced by cultivation is difficult to effectively use in recent years. There has been an increasing amount of research on the transforming straw into biomass char, but it has often focused on the effects of biomass char addition on soil physicochemical properties, without further exploring the mechanisms of this process and its effects on soil microorganisms. Microorganisms are an important part of the soil system and the process of how biomass char addition affects microorganisms through its effect on soil physicochemical properties should not be overlooked. In this study， the effect of biochar application at different preparation temperatures (300°C, 400°C and 500°C) and addition contents (0.1% and 1%) on ammonia, nitrate and total nitrogen in soil leachates were investigated. The effect of microbial sequencing on the dynamics of carbon and nitrogen was also investigated to reveal the mechanisms contributing to the changes in nitrogen forms. The results showed that biochar had a better adsorption ability on ammonia nitrogen, and biochar promoted the conversion of ammonia nitrogen to nitrate nitrogen by nitrifying bacteria. The addition of 1% biochar (prepared at 500°C) increased nitrate-nitrogen leaching by 86.52% compared to the control treatment. The sequencing of microorganisms also revealed that biochar changed the structure and abundance of the soil microbial community, especially increasing the relative abundance of the Helicobacter nitrification phylum by 2.02%. These results indicates that biochar facilitated the adsorption of ammonium nitrogen and the conversion of nitrate nitrogen, and solving the problem of low nitrogen fertilizer utilization while promoting the formation of beneficial bacteria in the soil.

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The effect of olive pomace biochar on some characteristics of Vertisols

İlay,

Bodur,

Eren

et al. 2024

Irrigation and Drainage

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The aim of this study was to investigate the effect of olive pomace biochar (OB) application on the mechanical, physical and chemical properties of Vertisols. For this study, soil samples classified as Vertisol in Çanakkale, where internal drainage and surface ponding are major problems, were used. The OB was produced at 450°C and then mixed with 0% (control), 3%, 6% and 9% of the soil by weight. Various soil parameters, including the Atterberg limits (liquid limit [LL], plastic limit [PL], plasticity index [PI], shrinkage limit [SL]), saturated hydraulic conductivity (Ksat), field capacity (FC), total carbon (TC) and total nitrogen (TN), were determined. The values of all the soil parameters increased, except for the PI. Moreover, the Ksat value increased by 127% and 136% with 6% and 9% OB application, respectively, compared to that of the control. Additionally, the FC, TN and TC levels in the soils increased in response to biochar application. In conclusion, OB application has a positive effect on the specific properties of Vertisol and can improve its physical properties.

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Grain size-induced changes in carbon and nitrogen concentrations and characteristics of tomato harvest residue biochar

Cited by 12 publications

References 33 publications

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

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

Effects of Biochar Application on Soil Nitrogen Conversion and Microbial Community Composition

The effect of olive pomace biochar on some characteristics of Vertisols

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