Paddy rice yield and greenhouse gas emissions: Any trade-off due to co-application of biochar and nitrogen fertilizer? A systematic review

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cg.authorship.typesCGIAR and developing country instituteen_US
cg.authorship.typesCGIAR and advanced research instituteen_US
cg.contributor.affiliationUniversité des Sciences, des Techniques et des Technologies de Bamakoen_US
cg.contributor.affiliationInstitut Polytechnique Rural de Formation et de Recherche Appliquée, Malien_US
cg.contributor.affiliationUniversity of Cape Coasten_US
cg.contributor.affiliationAfrica Rice Centeren_US
cg.contributor.affiliationHokkaido Universityen_US
cg.contributor.affiliationThünen Institute of Climate-Smart Agriculture, Germanyen_US
cg.contributor.affiliationInstitute D'Economie Rurale, Malien_US
cg.contributor.donorWest African Science Service Centre on Climate Change and Adapted Land Use (WASCAL)en_US
cg.creator.identifierElliott Dossou-Yovo: 0000-0002-3565-8879en_US
cg.howPublishedFormally Publisheden_US
cg.identifier.doihttps://doi.org/10.1016/j.heliyon.2023.e22132en_US
cg.identifier.urlen_US
cg.isijournalISI Journalen_US
cg.issn2405-8440en_US
cg.issue11en_US
cg.journalHeylionen_US
cg.reviewStatusPeer Reviewen_US
cg.volume9en_US
dc.contributor.authorIboko, M.P.en_US
dc.contributor.authorDossou-Yovo, Elliott Ronalden_US
dc.contributor.authorObalum, S.E.en_US
dc.contributor.authorOraegbunam, C.J.en_US
dc.contributor.authorDiedhiou, S.en_US
dc.contributor.authorBrümmer, C.C.en_US
dc.contributor.authorTeme, N.G.en_US
dc.date.accessioned2024-11-21T06:19:01Zen_US
dc.date.available2024-11-21T06:19:01Zen_US
dc.identifier.urihttps://hdl.handle.net/10568/160026en_US
dc.titlePaddy rice yield and greenhouse gas emissions: Any trade-off due to co-application of biochar and nitrogen fertilizer? A systematic reviewen_US
dcterms.abstractCombined application of biochar and nitrogen (N) fertilizer could offer opportunities to increase rice yield and reduce methane emissions from paddy fields. However, this strategy may increase nitrous oxide (N2O) emissions, hence its interactive effects on GHG emissions, global warming potential (GWP) and GHG intensity (GHGI) remained poorly understood. We conducted a systematic review to i) evaluate the overall effects of combined application of biochar and N fertilizer rates on GHGs emissions, GWP, rice yield, and GHGI, ii) determine the quantities of biochar and N-fertilizer application that increase rice yield and reduce GHGs emissions and GHGI, and iii) examine the effects of biochar and different types of nitrogen fertilizers on rice yield, GHGs, GWP, and GHGI using data from 45 research articles and 183 paired observations. The extracted data were grouped based on biochar and N rates used by researchers as well as N fertiliser types. Accordingly, biochar rates were grouped into low (≤9 tons/ha), medium (>9 and ≤ 20 ton/ha) and high (>20 tons/ha), while N rates were grouped into three categories: low (≤140 kg N/ha), medium (>140 and ≤ 240 kg N/ha), and high (>240 kg N/ha). For fertiliser types, N rates were grouped as: low (≤150 kg N/ha), medium (>150 and ≤250 kg N/ha), and high (>250 kg N/ha) and N types into: urea, NPK, NPK plus urea (NPK_urea) and NPK plus (NH4)2SO4 (NPK_(NH4)2SO4). Results showed that biochar and N fertiliser significantly affected GHGs emissions, GWP, GHGI and rice yield. Compared to control (i.e., sole N application), co-application of high biochar and medium N rates significantly decreased CH4 emission (82 %) while low biochar with low N rates enhanced CH4 emission (114 %). In contrast, high biochar combined with low N decreased N2O emission by 91 % whereas medium biochar and high N rates resulted in 82 % increase in N2O emission relative to control. The highest GWP and GHGI were observed under co-application of medium biochar and low N rates. Highest rice yield was observed under low biochar rate and high N rate. Regardless of N fertiliser type and biochar rates, increasing N rates increased rice yield and N2O emissions. The highest GWP and GHGI were recorded under sole NPK application. Combination of low biochar and medium N produced low GHGs emissions, high grain yield, and the lowest GHGI, and could be recommended to smallholder farmers to increase rice yield and reduce greenhouse gas emissions from paddy rice field. Further studies should be conducted to evaluate the effects of biochar properties on soil characteristics and greenhouse gas emissions.en_US
dcterms.accessRightsOpen Accessen_US
dcterms.audienceScientistsen_US
dcterms.available2023-11-11en_US
dcterms.bibliographicCitationIboko, M.P. Dossou-Yovo,E. R. Obalum,S.E. Oraegbunam,C.J. Diedhiou, S. Brümmer,C. Teme, N. 2023. Paddy rice yield and greenhouse gas emissions: Any trade-off due to co-application of biochar and nitrogen fertilizer? A systematic review. Heliyon 9(11): e22132.en_US
dcterms.extente22132en_US
dcterms.issued2023-11-11en_US
dcterms.languageenen_US
dcterms.licenseCC-BY-NC-ND-4.0en_US
dcterms.subjectriceen_US
dcterms.subjectyieldsen_US
dcterms.subjectgreenhouse gas emissionsen_US
dcterms.subjectnitrogen fertilizersen_US
dcterms.typeJournal Articleen_US

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