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"The Potential of a Chlorophyll Content SPAD Meter to Quantify Nutrient Stress in Foliar Tissue of Sycamore (Acer pseudoplatanus), English Oak (Quercus robur), and European Beech (Fagus sylvatica)." Arboriculture & Urban Forestry (AUF)
34.2
(2008):
89-100.
Web. 19 April. 2024.