Climatic risk zoning for corn and palisade grass (Brachiaria brizantha cv. Marandu) cultivated in integrated crop-livestock systems in São Paulo state, Brazil.

dc.contributorPATRICIA MENEZES SANTOS, CPPSE; JOSE RICARDO MACEDO PEZZOPANE, CPPSE; FERNANDO CAMPOS MENDONCA, CPPSE; GIOVANA MARANHAO BETTIOL, CPPSE; BALBINO ANTONIO EVANGELISTA, CPAC; FERNANDO ANTONIO MACENA DA SILVA, CPAC.
dc.creatorSANTOS, P. M.
dc.creatorPEZZOPANE, J. R. M.
dc.creatorMENDONCA, F. C.
dc.creatorBETTIOL, G. M.
dc.creatorEVANGELISTA, B. A.
dc.creatorSILVA, F. A. M. da
dc.date2023-02-16T17:05:41Z
dc.date2023-02-16T17:05:41Z
dc.date2012-01-16
dc.date2012
dc.date.accessioned2023-09-05T02:15:02Z
dc.date.available2023-09-05T02:15:02Z
dc.identifierRevista Brasileira de Zootecnia, v. 41, n. 1, p. 36-40, 2012.
dc.identifierhttp://www.alice.cnptia.embrapa.br/alice/handle/doc/912671
dc.identifierhttp://dx.doi.org/10.1590/S1516-35982012000100006
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/8635257
dc.descriptionClimatic risk zoning allows the identification of areas of low risk of reduced crop productivity due to climatic events. In Brazil, losses to agriculture due to climate are mainly caused by drought. The objective of this research was to determine areas of low climatic risk for corn and palisade grass cultivated in integrated crop-livestock systems in Sao Paulo state. Corn varieties characterized by a 120-day growing cycle and soil with three different water holding capacities (sandy, medium and clayey soils) were considered. A daily water balance model was used to simulate planting dates between September and December. The water requirement satisfaction index (WRSI) was calculated for critical phenological phases of both cultures (germination, emergence and tillering of palisade grass and flowering and grain filling of corn). The WRSI values, calculated for a minimum frequency of 80%, were located spatially using the SPRING v. 5.1 geographic information system and the most favorable periods for sowing in different areas were determined. The results showed that there are areas of low climatic risk for cultivation of corn and palisade grass in integrated crop-livestock production systems in Sao Paulo state. Although climatic risk in these areas also depends on soil type, the most favorable period for planting is between October and November.
dc.languageIngles
dc.languageen
dc.rightsopenAccess
dc.subjectIntegrated crop-livestock
dc.subjectProduction systems
dc.subjectRainfall
dc.subjectevapotranspiration
dc.subjectwater balance
dc.titleClimatic risk zoning for corn and palisade grass (Brachiaria brizantha cv. Marandu) cultivated in integrated crop-livestock systems in São Paulo state, Brazil.
dc.typeArtigo de periódico


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