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光照、种植密度与采收期对植物工厂内生菜产量和品质的影响.docx

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光照、种植密度与采收期对植物工厂内生菜产量和品质的影响 Title:TheEffectsofLightIntensity,PlantDensity,andHarvestingPeriodonYieldandQualityofLeafyGreensinPlantFactories Abstract: Plantfactoriesprovideacontrolledenvironmentforcultivatingleafygreens,offeringanefficientandsustainablemethodoffoodproduction.Thisstudyaimedtoinvestigatetheimpactoflightintensity,plantdensity,andharvestingperiodonyieldandqualityofleafygreensinaplantfactory.Theexperimentwasconductedwithlettuceasthemodelplant,andacombinationofthreelightintensities,threeplantdensities,andthreeharvestingperiodswastested.Theresultsrevealedsignificanteffectsofthesefactorsontheyieldandqualityofleafygreens.Ultimately,understandingtheoptimalconditionsforcultivationcansupporttheoptimizationofplantfactorysystemsandcontributetothedevelopmentofsustainableagriculturepractices. Introduction: Plantfactorieshavegainedsignificantattentionasapromisingsolutionforfoodproductionduetotheirabilitytoprovidecontrolledenvironmentsandyear-roundcultivation.Leafygreens,suchaslettuce,areamongthemostcommonlycultivatedcropsinplantfactoriesduetotheirhighnutritionalvalueandfastgrowth.Achievingoptimalgrowthandqualityofleafygreensinplantfactoriesrequirescarefulconsiderationofvariousfactors,includinglightintensity,plantdensity,andharvestingperiod.Thisstudyaimedtoexploretheeffectsofthesefactorsontheyieldandqualityofleafygreensinaplantfactorysetting. Methods: Arandomizedcontrolledtrialwasconductedinaplantfactoryusinglettuceasthemodelplant.Threeindependentvariableswereinvestigated:lightintensity,plantdensity,andharvestingperiod.Threelightintensitieswereapplied:low(100μmol/m²/s),medium(200μmol/m²/s),andhigh(300μmol/m²/s).Similarly,threeplantdensitiesweretested:low(10plants/m²),medium(20plants/m²),andhigh(30plants/m²).Finally,threeharvestingperiodswereconsidered:early(4weeksafterplanting),mid(6weeksafterplanting),andlate(8weeksafterplanting).Eachtreatmentcombinationwasreplicatedthreetimestoensuredatareliability. ResultsandDiscussion: Lightintensitywasfoundtohaveasignificanteffec