Please use this identifier to cite or link to this item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/477300
Full metadata record
DC FieldValueLanguage
dc.contributor.authorSANTOS, M. X.pt_BR
dc.contributor.authorLOPES, M. A.pt_BR
dc.contributor.authorCOELHO, A. M.pt_BR
dc.contributor.authorGUIMARAES, P. E. O.pt_BR
dc.contributor.authorPARENTONI, S. N.pt_BR
dc.contributor.authorGAMA, E. E. G.pt_BR
dc.contributor.authorFRANCA, G. E.pt_BR
dc.date.accessioned2011-04-10T11:11:11Zpt_BR
dc.date.accessioned2011-04-10T11:11:11Zpt_BR
dc.date.available2011-04-10T11:11:11Zpt_BR
dc.date.available2011-04-10T11:11:11Zpt_BR
dc.date.created1997-11-14pt_BR
dc.date.issued1997pt_BR
dc.identifier.citationIn: SYMPOSIUM OF DEVELOPPING DROUGHT AND LOW N-TOLERANCE MAIZE, 1996, El Batan, Mexico. Proceedings... El Batan: CIMMYT, 1997. p. 20-23.pt_BR
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/477300pt_BR
dc.descriptionThe Brazilian territory has an area of approximately 8,5 million km2, which is divided into five main regions with particular characteristics related to average climitaic conditions and natural soil fertility. Climatic variations may be very accentuated within each particular region, but a common feature is the irregular distribution of rains, which causes droughts of variable intensities. Maize is an important crop in most Brazilian regions, occupying approximately 13 million ha and producing annually 28-30 million tons of grain. It has been estimated that drought problems, depending on year intensity, reduce maize production by 14% to 28%. Another limiting factor for maize production in Brazil is the low natural fertility of the soils, especially in nutrients like phosphorus and nitrogen (N). It has been estimated that 80% of the soils in Brazil are deficient in N. Although fertilization is a common solution to this problem, its high costs make this option inaccessible to many farmers. The amount of supplemental N applied to maize in Brazil is low (36 kg N/ha), and of this only 50% to 60% is utilized by the crop. Considering that low N availability and drought are severe constraints to maize crop in Brazil, the National Maize and Sorghum Research Center (CNPMS/EMBRAPA) has initiated breeding programs aimed at the development of germplasm that performs more efficienctly under these two limiting conditions. Several genotypes have been developed on the basis of anthesis-silking interval selection (...)pt_BR
dc.language.isoengeng
dc.rightsopenAccesseng
dc.subjectToleranciapt_BR
dc.subjectBrasilpt_BR
dc.subjectMaizept_BR
dc.subjectProductionpt_BR
dc.subjectTolerancept_BR
dc.subjectFertilitypt_BR
dc.titleDrought and low N status limiting maize production in Brazil.pt_BR
dc.typeArtigo em anais e proceedingspt_BR
dc.date.updated2018-06-11T11:11:11Zpt_BR
dc.subject.thesagroFertilidadept_BR
dc.subject.thesagroMilhopt_BR
dc.subject.thesagroMelhoramentopt_BR
dc.subject.thesagroNitrogêniopt_BR
dc.subject.thesagroProduçãopt_BR
dc.subject.thesagroSecapt_BR
dc.subject.thesagroZea Mayspt_BR
dc.subject.nalthesaurusbreedingpt_BR
dc.subject.nalthesaurusdroughtpt_BR
dc.subject.nalthesaurusBrazilpt_BR
dc.subject.nalthesaurusnitrogenpt_BR
dc.subject.nalthesaurussoilpt_BR
riaa.ainfo.id477300pt_BR
riaa.ainfo.lastupdate2018-06-11 -03:00:00pt_BR
dc.contributor.institutionEMBRAPA/CNPMS; ANTONIO MARCOS COELHO, CNPMS; PAULO EVARISTO DE O GUIMARAES, CNPMS; SIDNEY NETTO PARENTONI, CNPMS.pt_BR
Appears in Collections:Artigo em anais de congresso (CNPMS)

Files in This Item:
File Description SizeFormat 
Droughtlow.pdf3,04 MBAdobe PDFThumbnail
View/Open

FacebookTwitterDeliciousLinkedInGoogle BookmarksMySpace