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Anewparadigmforworldagriculture:meetinghumanneedsProductive,sustainable,nutritiousRossM.Welcha,*,RobinD.GrahambaUSDA-ARS,U.S.Plant,SoilandNutritionLaboratoryTowerRoad,Ithaca,NY14853,USAbDepartmentofPlantScience,WaiteAgriculturalResearchInstitute,PrivateMailBag1,UniversityofAdelaide,GlenOsmond,SA5064,AustraliaAccepted1September1998AbstractMicronutrientmalnutrition(`HiddenHunger')nowaf¯ictsovertwobillionpeopleworldwide,resultinginpoorhealth,lowworkerproductivity,highratesofmortalityandmorbidity,increasedratesofchronicdiseases(coronaryheartdisease,cancer,stroke,anddiabetes),andpermanentimpairmentofcognitiveabilitiesofinfantsborntomicronutrient-de®cientmothers.Theconsequencesoffoodsystemfailuresincludelethargicnationaldevelopmentefforts,continuedhighpopulationgrowthrates,andaviciouscycleofpovertyformassivenumbersofunderprivilegedpeopleinallnations.Ourfoodsystemsarefailingusgloballybynotprovidingenoughbalancednutrientoutputtomeetallthenutritionalneedsofeveryperson,especiallyresource-poorwom...