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Displaying items 1 - 2 of 2
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1. Nitrogen fixation by Robinia pseudoacacia (L.) seedlings in the greenhouse under manipulated nitrogen and light treatments

Author(s):
Ottinger, Sarah L.; Miniat, Chelcy Ford; Wurzburger, Nina

2. Hubbard Brook Experimental Forest (USDA Forest Service): Routine Seasonal Phenology Measurements, 1989 - present World symbol which represents External data

Author(s):
USDA Forest Service Northern Research Station