Modeling Soil Water Dynamics and Hydrogel Doses Optimization Loam Soil under Varying Bulk Densities.

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dc.contributorSÃO PAULO STATE UNIVERSITY, 18610-307 BOTUCATU, SP, BRAZIL
dc.contributorEDNALDO JOSE FERREIRA, CNPDIA
dc.contributorSÃO PAULO STATE UNIVERSITY, 18610-307 BOTUCATU, SP, BRAZIL
dc.contributorJOSE MANOEL MARCONCINI, CNPDIA
dc.contributorCARLOS MANOEL PEDRO VAZ, CNPDIA
dc.contributorLUIS HENRIQUE BASSOI, CNPDIA.
dc.creatorMAGALHÃES, J. W. de O.
dc.creatorFERREIRA, E. J.
dc.creatorROCHA, L. A. L. da
dc.creatorMARCONCINI, J. M.
dc.creatorVAZ, C. M. P.
dc.creatorBASSOI, L. H.
dc.date2026-06-03T18:59:21Z
dc.date2026-06-03T18:59:21Z
dc.date2026-06-03
dc.date2026
dc.date.accessioned2026-07-07T04:30:00Z
dc.descriptionClimatechangehas intensifieddroughts inBrazil, threateningagriculture throughalteredrainfall andtemperature patterns.Apromisingapproachtomitigatingthesoilwaterdeficitistheadditionofbiodegradablehydrophilicpolymers(hydrogels). However,waterdynamicsinsoilhydrogelsystemsremaincomplexanddependonsoiltype,bulkdensity,andhydrogeldosage.The hydrophilicpropertiesofthematrixmaypersistovertime,highlightingtheimportanceofhydrogelresidualeffects.Theinfluenceof bulkdensityonpolymerdosagedynamicsremainsunderexplored, andnorapidanalyticalmethodcurrentlyexists toestimatethe doseequivalenceof activehydrogels foragriculturalpracticeswithaccuracyandwithoutexcessivetimeconsumption.Thisstudy addresses twomaingoals: (1) toevaluate theeffectivenessof hydrogel dosages insandyclay loamsoil at varyingdensities for enhancedwater retentionand(2)todevelopamachine learning-basedanalyticalmethodfor rapidestimationof activehydrogel doses fromshortsoilwatercontent timeseries.Resultsshowedasignificant increaseinsoilwaterretentionat the3gL−1dosage. Theproposedmethod,usingalocallyweightedregressionmodel,achievedahighcorrelation(0.875)andlowerror(0.749gL−1)in cross-validationwithoutrequiringdensityinformation,offeringapractical tool foragriculturalapplications.Thesefindingssupport theefficientandsustainableuseofhydrogels,providingapractical frameworkthat facilitates theirmanagementandenablesrapid field-scale interventions toimprovewateruse inagriculture.
dc.format58306−58316
dc.identifierACS Omega, v. 10, 2025.
dc.identifierhttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1187351
dc.identifierhttps://doi.org/10.1021/acsomega.5c05318
dc.identifier.urihttp://hdl.handle.net/123456789/463261
dc.languageeng
dc.rightsopenAccess
dc.subjectOxisol in U S Soil Taxonomy
dc.subjectHydrogels
dc.titleModeling Soil Water Dynamics and Hydrogel Doses Optimization Loam Soil under Varying Bulk Densities.
dc.typeArtigo de periódico

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