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dc.rights.licenseAtribución-NoComercial 4.0 Internacional
dc.contributor.authorContreras, Hector Augusto Sandoval
dc.contributor.authorBarzan, Renan Ribeiro
dc.contributor.authorContreras, Mario Sandoval
dc.contributor.authorBrito, Osmar Rodrigues
dc.identifier.issnISSN: 2323-0118
dc.description.abstractThe aim of this research was to evaluate two traditional N sources (urea and ammonium sulfate) and an alternative one (sulfamoo) with increasing rates (0, 40, 80, 120 and 160 kg N ha-1, respectively) affecting aspects of upland rice crop cv. IAPAR 117. The experiment was carried out in greenhouse conditions, using a completely randomized design in 3x4 factorial scheme, with four replicates. It was evaluated the number of tillers (NT), plant mean height (PMH), dry matter of shoots (DMS), crop yield/mass of filled grains (MFG), content of N-DMS, agronomic efficiency of nitrogen (AE), mass of 100 filled grains (M100FG) and grain harvest index (GHI). The nitrogen rates application as ammonium sulfate resulted in a greater increasing of NT, DMS, MFG and N-DMS, respectively. In fact, higher agronomic efficiency obtained with urea and sulfamoo at 40 kg N. ha-1, although AE decreased within the higher rates of N, independently from the source. The M100FG and GHI were higher when sulfamoo and urea were used, although the high N supply negatively affected these two variables for all N evaluated sources.
dc.publisherUniversidad Nacional de Colombia - Sede Palmira
dc.relation.ispartofUniversidad Nacional de Colombia Revistas electrónicas UN Acta Agronómica
dc.relation.ispartofActa Agronómica
dc.rightsDerechos reservados - Universidad Nacional de Colombia
dc.subject.ddc55 Ciencias de la tierra / Earth sciences and geology
dc.subject.ddc63 Agricultura y tecnologías relacionadas / Agriculture
dc.titleGrowth, yield and agronomic efficiency of rice (Oryza sativa L.) cv. IAPAR 117 affected by nitrogen rates and sources
dc.typeArtículo de revista
dc.relation.referencesContreras, Hector Augusto Sandoval and Barzan, Renan Ribeiro and Contreras, Mario Sandoval and Brito, Osmar Rodrigues (2017) Growth, yield and agronomic efficiency of rice (Oryza sativa L.) cv. IAPAR 117 affected by nitrogen rates and sources. Acta Agronómica, 66 (4). 558 - 565. ISSN 2323-0118
dc.subject.proposalfertilizer formulations
dc.subject.proposalplant growth parameters
dc.subject.proposalproductive performance

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Atribución-NoComercial 4.0 InternacionalThis work is licensed under a Creative Commons Reconocimiento-NoComercial 4.0.This document has been deposited by the author (s) under the following certificate of deposit