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Corn (Zea mays L.) Yield Prediction Using Multispectral and Multidate Reflectance

^a S. Clay, Plant Sci. Dep., South Dakota State Univ., Brookings, SD 57007
^b Eng. Resour. Cent., South Dakota State Univ., Brookings, SD 57007

View larger version (65K): [in a new window]   Fig. 1. Near-infrared band aerial images for Moody taken in (a) 28 May 1999, (b) 27 July 1999, and (c) 21 Sept. 1999.

View larger version (16K): [in a new window]   Fig. 2. A comparison between measured and estimated corn yields at Moody in 2001. The predictive equations were based on data collected at the two sampling dates (Model System 4, spring and summer) over 2 yr (1999 and 2000), tested on data collected in 2001, and developed from multiple regression using (a) principal components and (b) relative reflectance.