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Figure 4


Figure 4. Quadratic-plateau functions describing the relationship between alfalfa yield and normalized difference vegetation index (NDVI) as measured by the GreenSeeker (NDVIGS) and FieldScan (NDVIFS). Canopy reflectance measurements were made 1 d before each of the five harvests during 2005. Observations for a given harvest consist of the mean VI and total plot yield measured from each plot (n = 80).





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The SCI Journals Agronomy Journal Vadose Zone Journal
Journal of Natural Resources
and Life Sciences Education		 Soil Science Society of America Journal
Journal of Plant Registrations Journal of
Environmental Quality		 The Plant Genome