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Effects of N addition rates on the productivity ofPicea sitchensis,Thuja plicata, andTsuga heterophylla seedlings

BiogeochemistryEngineeringBotanyAndtsuga Heterophylla SeedlingsPlant ProductionAgricultural EconomicsPlant EcologyProductivity Ofpicea SitchensisCrop PhysiologyN Addition RatesPhotosynthesisPlant Physiology