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dc.contributor.authorCarmona, Felipe de Campospt_BR
dc.contributor.authorAnghinoni, Ibanorpt_BR
dc.contributor.authorMezzari, Célito Pescadorpt_BR
dc.contributor.authorMartins, Amanda Posseltpt_BR
dc.contributor.authorCarvalho, Paulo Cesar de Facciopt_BR
dc.date.accessioned2019-05-15T02:38:05Zpt_BR
dc.date.issued2016pt_BR
dc.identifier.issn0100-0683pt_BR
dc.identifier.urihttp://hdl.handle.net/10183/194257pt_BR
dc.description.abstractIrrigated rice in the state of Rio Grande do Sul (Brazil) has shown significant growth in yield in recent years due to improved management practices, especially in regard to fertilizer use. However, the response curves that led to the current fertilizer recommendations do not consider integrated systems prevailing in rice-producing regions that have adopted the practice of integrated crop-livestock systems. The aim of the present study was to evaluate the effectiveness of current fertilizer recommendations for irrigated rice in lowland soils in Rio Grande do Sul under integrated crop-livestock systems for different periods of time. The experiments were performed in the 2012/2013 growing season on four farms in the state with different forage species under cattle grazing. In these areas, fertilizer recommendations were made based on previous soil analyses, and treatments consisted of fractions of the currently recommended application rates. At the end of the crop cycle, the percentages of maximum technical efficiency (PMTE) and maximum economic efficiency (PMEE) of NPK fertilizers, and increases in yield and net income provided by PMEE were determined. Rice yield increased and fertilizer response decreased over time in a rice-beef cattle integrated system. The highest incomes with fertilization of irrigated rice occurred at lower application rates than those recommended by soil analysis.en
dc.format.mimetypeapplication/pdfpt_BR
dc.language.isoengpt_BR
dc.relation.ispartofRevista brasileira de ciencia do solo. Viçosa. Vol. 40 (2016), [art.] e0140798, [8 p.]pt_BR
dc.rightsOpen Accessen
dc.subjectEconomic response to fertilizationen
dc.subjectFertilizantept_BR
dc.subjectArroz irrigadopt_BR
dc.subjectLowland soilsen
dc.subjectFertilidade do solopt_BR
dc.subjectSolo de várzeapt_BR
dc.titleEffectiveness of current fertilizer recommendations for irrigated rice in integrated crop-livestock systemspt_BR
dc.typeArtigo de periódicopt_BR
dc.identifier.nrb001083106pt_BR
dc.type.originNacionalpt_BR


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