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dc.contributor.authorFAGERIA, N. K.pt_BR
dc.contributor.authorSANTOS, A. B. dospt_BR
dc.contributor.authorMORAES, M. F.pt_BR
dc.date.accessioned2011-04-09T14:42:18Z-
dc.date.available2011-04-09T14:42:18Z-
dc.date.created2010-07-08pt_BR
dc.date.issued2010pt_BR
dc.identifier.citationCommunications in Soil Science and Plant Analysis, v. 41, n. 13, p. 1565-1575, Jul. 2010.pt_BR
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/857069pt_BR
dc.descriptionUrea and ammonium sulfate are principal nitrogen (N) sources for crop production. Two field experiments were conducted during three consecutive years to evaluate influence of urea and ammonium sulfate application on grain yield, soil pH, calcium (Ca) saturation, magnesium (Mg) saturation, base saturation, aluminum (Al) saturation, and acidity (H + Al) saturation in lowland rice production. Grain yield was significantly influenced by urea as well as ammonium sulfate fertilization. Soil pH linearly decreased with the application of N by ammonium sulfate and urea fertilizers. However, the magnitude of the pH decrease was greater by ammonium sulfate than by urea. The Ca and Mg saturations were decreased at the greater N rates compared to low rates of N by both the fertilizer sources. The Al and acidity saturation increased with increasing N rates by both the fertilizer sources. However, these acidity indices were increased more with the application of ammonium sulfate compared with urea. Rice grain yield had negative associations with pH, Ca saturation, Mg saturation, and base saturation and positive associations with Al and acidity saturation. This indicates that rice plant is tolerant to soil acidity.pt_BR
dc.language.isoengeng
dc.rightsopenAccesseng
dc.titleInfluence of urea and ammonium sulfate on soil acidity indices in lowland rice production.pt_BR
dc.typeArtigo de periódicopt_BR
dc.date.updated2011-04-10T11:11:11Zpt_BR
dc.subject.thesagroArrozpt_BR
dc.subject.thesagroOryza sativapt_BR
dc.subject.thesagroAcidez do solopt_BR
dc.subject.thesagroUreiapt_BR
dc.subject.thesagroCalciopt_BR
riaa.ainfo.id857069
riaa.ainfo.lastupdate2022-06-06
dc.identifier.doihttps://doi.org/10.1080/00103624.2010.485237eng
dc.contributor.institutionNAND KUMAR FAGERIA, CNPAF; ALBERTO BAETA DOS SANTOS, CNPAF; M. F. MORAES, ESALQ.pt_BR
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