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「0biective」Thisstudyaimedtoinvestigatetheeffectsofcultivationmeth—odsonriceyieldandeconomicbenefitsintheDongtingLakearea.「Method」Afieldplotexperimentwasconductedbyadoptingthreedifferentplantingpatternsofartifi-ciaIsowing,artificiaIthrowingandmechanicaItra