Biochar impact on nitrate leaching as influenced by native soil organic carbon in an Inceptisol of central India

Kanthle, Anil Kumar; Lenka, Narendra Kumar; Lenka, Sangeeta; Tedia, K.

doi:10.1016/j.still.2015.11.009

Cited by 76 publications

(31 citation statements)

References 24 publications

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“…It has been reported that the biochar application in the soil increases soil N content (Zhao, Yan, Wang, Xing, & Zhou, ). In general, the addition of biochar can lead to a decrease in N leaching from soil profile and an increase in the fertilizer N recovery (Güereña et al, ; Kanthle, Lenka, Lenka, & Tedia, ). Moreover, biochar could have an indirect influence on N concentration through enhancing microbial communities.…”

Section: Resultsmentioning

confidence: 99%

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Biochar influences soil carbon pools and facilitates interactions with soil: A field investigation

et al. 2018

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Biochar promotes the storage of organic carbon (OC) in soils. OC is unevenly distributed in soils among different particle‐size fractions showing different structures, functions, and stability. The objective of this study was to investigate the biochar–soil interactions and the redistribution of soil C in different soil fractions based on a 2‐year field experiment. Fractionation was done by particle sizes including coarse sand (250–2,000 μm), fine sand (53–250 μm), and silt/clay (<53 μm). Integrated spectroscopic techniques were employed to examine physical characteristics of biochar–soil interactions in different soil fractions. Application of biochar increased OC by 37%, 42%, and 76% in soil particle‐size fractions of 53–250, <53, and 250–2,000 μm, respectively. This was supported by X‐ray fluorescence spectroscopy analysis, which showed an increase of C contents by 5–56% with biochar addition. The highest increment in OC was found in coarse sand fraction, and redistribution of OC was detected depending on various soil particle sizes. Results of scanning electron microscopy combined with electron dispersive X‐ray spectroscopy analysis showed the interactions between soil and biochar, which could be attributed to oxidized functional groups (OCO, CO, and CO) captured by the X‐ray photoelectron spectroscopy. The long‐term aged biochar could be beneficial to enhance soil quality by promoting OC storage and facilitating positive biochar–soil interactions.

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Section: Resultsmentioning

confidence: 99%

“…In general, the addition of biochar can lead to a decrease in N leaching from soil profile and an increase in the fertilizer N recovery (Güereña et al, 2013;Kanthle, Lenka, Lenka, & Tedia, 2016).…”

Section: Soil C/n Ratio and Organic Mattermentioning

confidence: 99%

Biochar influences soil carbon pools and facilitates interactions with soil: A field investigation

et al. 2018

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“…Mechanism of decreased nitrate leaching were found to be the adsorption of NO3 -on anion exchange surface of biochar, particularly when biochar was obtained at high temperatures (>600°C); the inhibited nitrification and thus the decreased nitrate production; the N immobilisation due to the presence of labile C in biochar; the incorporation of NO3 -present in soil solution into biochar pores; the increased water retention in the soil which may reduce NO3 -leaching (Lone et al, 2015). Recently, a number of studies, carried out in open field (Ventura et al, 2013), in pots experiment (Buecker et al, 2016) or using columns leaching (Bradley et al, 2015;Kanthle et al, 2016;Yuan et al, 2016), indicated that biochar is an effective option of nitrate leaching mitigation. However, other studies oppositely showed a limited or no ability of biochar to retain NO3 -.…”

Section: Introductionmentioning

confidence: 99%

Effect of biochar amendment on nitrate retention in a silty clay loam soil

et al. 2016

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Biochar incorporation into agricultural soils has been proposed as a strategy to decrease nutrient leaching. The present study was designed to assess the effect of biochar on nitrate retention in a silty clay loam soil. Biochar obtained from the pyrogasification of fir wood chips was applied to soil and tested in a range of laboratory sorption experiments. Four soil treatments were considered: soil only (control), soil with 2, 4 and 8% of biochar by mass. The Freundlich sorption isotherm model was used to fit the adsorbed amount of nitrate in the soil-biochar mixtures. The model performed very well in interpreting the experimental data according to a general linear regression (analysis of co-variance) statistical approach. Nitrate retention in the soilbiochar mixtures was always higher than control, regardless the NO3 -concentration in the range of 0-400 mg L -1 . Different sorption capacities and intensities were detected depending on the biochar application rate. The highest adsorption capacity was observed in the soils added with 2 and 4% of biochar, respectively. From the results obtained is possible to infer that nitrate retention is higher at lower biochar addition rate to soil (2 and 4%) and at lower nitrate concentration in the soil water solution. These preliminary laboratory results suggest that biochar addition to a typical Mediterranean agricultural soil could be an effective management option to mitigate nitrate leaching.

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“…396 (Brasil, 2008) as groundwater quality criteria, it was observed high concentrations of NO3 -over the months of the percolated evaluation, and, therefore, it is necessary to implement more appropriate management practices due to the potential contamination of surface and ground waters (Kanthle et al, 2016).…”

Section: Resultsmentioning

confidence: 99%

Percolate Quality in Soil Cultivated With Application of Wastewater From Swine Slaughterhouse and Dairy Products

et al. 2017

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ABSTRACT:The objective of this study was to evaluate the quality of the percolate in soil columns cultivated with Tiffon-grass 85 under different wastewater rates from swine slaughterhouse and dairy. The experiment was conducted at the Department of Engineering at the Federal University of Lavras, in PVC columns with 0.30 m of diameter and 1.2 m deep, filled with Dark Red Latosol cultivated with Tifton-grass 85. The treatments consisted of a (AQT0) control with recommended chemical fertilization for Tifton-grass 85 (300 kg ha -1 year -1 of N), and four doses of SSW and DPW (100, 200, 300 and 400% of the recommendation) in a CRD with 3 replications. The samples of percolated were collected and characterized weekly. The treatments of highest dosage have obtained COD, after 120 days, of 47.7 mg L -1 (AAT3) and 38.6 mg L -1 (AAT4). Although nitrate concentrations were elevated on the earlier months, the greater assimilation of nutrients by the Tifton-grass 85 and the reduction of the mineralization of organic material resulted in lower nitrate concentrations of 10 mg L -1 .

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Biochar impact on nitrate leaching as influenced by native soil organic carbon in an Inceptisol of central India

Cited by 76 publications

References 24 publications

Biochar influences soil carbon pools and facilitates interactions with soil: A field investigation

Biochar influences soil carbon pools and facilitates interactions with soil: A field investigation

Effect of biochar amendment on nitrate retention in a silty clay loam soil

Percolate Quality in Soil Cultivated With Application of Wastewater From Swine Slaughterhouse and Dairy Products

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