Effect of Nigella sativa Residue and Its Biochar on Soil Microbial Activity, Carbon Sequestration and Nitrogen Cycling Across Different Soil Types

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dc.contributor.authorYanardag, Asuman Buyukkilic
dc.date.accessioned2026-06-19T06:39:20Z
dc.date.available2026-06-19T06:39:20Z
dc.date.issued2025
dc.departmentMalatya Turgut Özal Üniversitesi
dc.description.abstractThis study aimed to assess the effects of black cumin (Nigella sativa) residue and its biochar on soil microbial activity, carbon sequestration and nitrogen cycling in three soil types: Alfisol, Entisol and Mollisol. A 120-day incubation experiment was conducted to evaluate changes in soluble carbon (SC), microbial biomass carbon (MBC), soluble nitrogen (SN), microbial biomass nitrogen (MBN), CO2 emissions, carbon use efficiency (CUE) and metabolic coefficient (qCO(2)), calculated to understand microbial functionality and carbon retention. The results revealed that biochar (BC) enhanced long-term carbon stabilisation, while black cumin residue increased microbial activity and short-term nutrient turnover. In the BC2 treatment, SC remained stable until day 120 (419.2 mg/kg), suggesting sustained carbon availability. The highest MBC (528 mg kg(-1)) and lowest CO2 emissions were also recorded under biochar treatments, reflecting improved microbial efficiency. Significant interactions (p < 0.001) were observed between soil type, treatment and sampling time. These findings suggest that the combined use of biochar and plant residues can enhance both immediate microbial responses and long-term soil health, offering a sustainable strategy for soil fertility improvement and carbon management across different soil systems.
dc.description.sponsorshipScientific and Technological Research Council of Turkiye (TUBIdot;TAK)
dc.description.sponsorshipThis work was supported by the Scientific and Technological Research Council of Turkiye (TUB & Idot;TAK)
dc.identifier.doi10.1111/sum.70097
dc.identifier.issn0266-0032
dc.identifier.issn1475-2743
dc.identifier.issue2
dc.identifier.orcid0000-0003-3236-1532
dc.identifier.scopus2-s2.0-105007813759
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1111/sum.70097
dc.identifier.urihttps://hdl.handle.net/20.500.12899/5550
dc.identifier.volume41
dc.identifier.wosWOS:001504523100001
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.institutionauthorYanardag, Asuman Buyukkilic
dc.language.isoen
dc.publisherWiley
dc.relation.ispartofSoil Use and Management
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_WOS_20260612
dc.subjectAlfisol
dc.subjectBiochar
dc.subjectCarbon Sequestration
dc.subjectEntisol
dc.subjectMollisol
dc.subjectNigella Sativa
dc.subjectResidue
dc.subjectSoil Improvement
dc.titleEffect of Nigella sativa Residue and Its Biochar on Soil Microbial Activity, Carbon Sequestration and Nitrogen Cycling Across Different Soil Types
dc.typeArticle

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