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dc.coverage.spatialBogotá, Colombiaspa
dc.creatorSantamaría Vanegas, Johanna
dc.creatorRozo Torres, Gladys
dc.creatorBarreto Campos, Briyith
dc.date.accessioned2020-04-14T17:19:22Z
dc.date.available2020-04-14T17:19:22Z
dc.date.created2019
dc.identifier.otherhttps://link.springer.com/article/10.1007/s10924-019-01384-4
dc.identifier.urihttp://hdl.handle.net/20.500.12010/8774
dc.description.abstractnovel carrageenan-based hydrogel (CBH) was developed via cross-linking and ion interaction methods to obtain a coating for NPK fertilizer grains. Attenuated total reflectance–Fourier transform infrared analysis (ATR–FTIR), scanning electron microscopy (SEM), texture profile analysis (TPA), rheological study, and swelling kinetics were used to characterize the physicochemical properties of the CBH. To test the slow-release behavior of the coated fertilizer and the adequate provision of nutrients for plants, the leaching rates of N, P, and K were determined through soil column experiments, and plant growth indicators were measured in greenhouse experiments in a yellow potato crop (Solanum phureja). The results showed that CBH is a material with homogeneous appearance, porous structure, similar chemical structure to κ-carrageenan, and resistance and low deformation at the fracture point. The swelling behavior experiments showed a maximum increase in thickness of 74% by water absorption, with osmolality being an important factor controlling the entry of water into the CBH. Wash experiments in soil columns showed that the noncoated granules released 12 and 18% less N–NH4 + and K+ than the noncoated fertilizer, both after 90 mm of accumulated precipitation. Less than 0.1% of P–PO4 −3 was lost in both treatments. No significant differences were observed in any of the growth plant and quality indicator variables between the plants grown with coated and noncoated fertilizer.spa
dc.format.extent10 páginasspa
dc.format.mimetypeimage/jepgspa
dc.publisherUniversidad de Bogotá Jorge Tadeo Lozanospa
dc.subjectCarrageenanspa
dc.subjectCoated fertilizersspa
dc.subjectHydropolymersspa
dc.subjectSolanum phurejaspa
dc.titleCharacterization of a κ-carrageenan hydrogel and its evaluation as a coating material for fertilizersspa
dc.type.localArtículospa
dc.subject.lembFertilizantes -- Investigacionesspa
dc.subject.lembFertilidad del suelo -- Investigacionesspa
dc.rights.accessrightsinfo:eu-repo/semantics/openAccessspa
dc.type.hasversioninfo:eu-repo/semantics/acceptedVersioneng
dc.rights.localAbierto (Texto Completo)spa
dc.identifier.instnameinstname:Universidad de Bogotá Jorge Tadeo Lozanospa
dc.identifier.reponamereponame:Repositorio Institucional de la Universidad de Bogotá Jorge Tadeo Lozanospa


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