Biochar improves fertility of a clay soil in the Brazilian Savannah: short term effects and impact on rice yield

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cg.contributor.affiliationEmpresa Brasileira de Pesquisa Agropecuáriaen
cg.contributor.affiliationWageningen University & Researchen
cg.contributor.affiliationTasmanian Institute of Agriculture, Australiaen
cg.contributor.affiliationAfrica Rice Centeren
cg.coverage.countryBrazil
cg.coverage.iso3166-alpha2BR
cg.coverage.regionSouth America
cg.identifier.urlhttps://kobra.bibliothek.uni-kassel.de/handle/urn:nbn:de:hebis:34-2013081343330en
cg.isijournalISI Journalen
cg.issn1612-9830en
cg.issue2en
cg.journalJournal of Agriculture and Rural Development in the Tropics and Subtropicsen
cg.volume114en
dc.contributor.authorCarvalho, M.T.M.en
dc.contributor.authorMadari, Beáta Een
dc.contributor.authorBastiaans, L.en
dc.contributor.authorOort, P.A.J. vanen
dc.contributor.authorHeinemann, Alexandre B.en
dc.contributor.authorSilva, M.A.S. daen
dc.contributor.authorMaia, A.H.N.M.en
dc.contributor.authorMeinke, Holgeren
dc.date.accessioned2021-12-06T12:34:01Zen
dc.date.available2021-12-06T12:34:01Zen
dc.identifier.urihttps://hdl.handle.net/10568/116524
dc.titleBiochar improves fertility of a clay soil in the Brazilian Savannah: short term effects and impact on rice yielden
dcterms.abstractThe objective of this study was to report single season effects of wood biochar (char) application coupled with N fer_x0002_tilization on soil chemical properties, aerobic rice growth and grain yield in a clayey Rhodic Ferralsol in the BrazilianSavannah. Char application effected an increase in soil pH, K, Ca, Mg, CEC, Mn and nitrate while decreasing Alcontent and potential acidity of soils. No distinct effect of char application on grain yield of aerobic rice was observed.We believe that soil properties impacted by char application were inconsequential for rice yields because neither wa_x0002_ter, low pH, nor the availability of K or P were limiting factors for rice production. Rate of char above 16 Mg ha −1reduced leaf area index and total shoot dry matter by 72 days after sowing. The number of panicles infected by riceblast decreased with increasing char rate. Increased dry matter beyond the remobilization capacity of the crop, andhigh number of panicles infected by rice blast were the likely cause of the lower grain yield observed when more than60 kg N ha−1 was applied. The optimal rate of N was 46 kg ha−1 and resulted in a rice grain yield above 3 Mg ha−1.en
dcterms.accessRightsOpen Access
dcterms.bibliographicCitationCarvalho, M. T.M. Madari, B. E. Bastiaans, L. van Oort, P. A.J. Heinemann, A. B. da Silva, M. A.S. Maia, A. H.N. M. Meinke, H. Biochar improves fertility of a clay soil in the Brazilian Savannah: short term effects and impact on rice yield. Journal of Agriculture and Rural Development in the Tropics and Subtropics. 2013, Volume 114, Issue 2: 101-107.en
dcterms.extentp. 101-107en
dcterms.issued2013
dcterms.languageen
dcterms.licenseOther
dcterms.subjectnitrogenen
dcterms.subjectoryza sativaen
dcterms.subjectoxisolen
dcterms.typeJournal Article

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