Cranberry ICM
Spatial
Variability in Cranberry, Conference on Precision Agriculture, July
18-22, 1998, St. Paul, MN
Spatial
Detection and Quantification of Phytophthora Root Rot Effects on Cranberry
Yield, Second Int'l Conf. on Geospatial Info. in Ag. and For., Jan.
10-12, 2000, FL
Evaluating
Commercial Cranberry Beds for Variability and Yield using Remote
Sensing Techniques, Second Int'l Conf. on Geospatial Info. in Ag. and
For., Jan. 10-12, 2000, FL
Cranberry
Images - Work in Progress
Rutgers University Blueberry Cranberry Research and Extension Center Web
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EVALUATING COMMERCIAL CRANBERRY BEDS FOR VARIABILITY
AND YIELD USING REMOTE SENSING TECHNIQUES
Marilyn G. Hughes
Rutgers Cooperative Extension & Center for Remote
Sensing
Phone (732-932-1582)
E-mail (mghughes@crssa.rutgers.edu)
Peter V. Oudemans
Rutgers Blueberry & Cranberry Research Center,Chatsworth,
NJ
Phone (609)-726-1590 x 20
E-mail (oudemans@aesop.rutgers.edu)
Joan R. Davenport, Soil Sciences, Washington State University
Keri Ayres, Rutgers Blueberry & Cranberry Research
Center
Teuvo M. Airola, Rutgers Center for Remote Sensing
Abbott Lee, Lee Brothers, Inc., Chatsworth, New Jersey
Lee Brother's Farm, Chatsworth, NJ
Image Source: CIR-aerial photography, Ocean Spray, Inc.
ABSTRACT
This study uses GPS/GIS/RS techniques to analyze cranberry (Vaccinium
macrocarpon Ait.) crop health and yield. Extensive field sampling has been
used in the past as a means of estimating potential bed yields. The major
problem for predicting yield appears to be to high intra-bed spatial variability.
For this study, color-IR photography from commercial cranberry beds (May
1996) was rectified to earth coordinates using GPS technology. An unsupervised
multi-spectral classification and an NDVI were done to statistically group
pixels in the image. Results indicate that a number of features within
cranberry beds can be identified, including variations of vegetative cover,
irrigation and drainage systems, and areas of beds damaged by insects and
fungal disease (Phytophthora cinnamomi). In the future, remotely sensed
imagery will be linked to ground based data to gain further insight into
the spatial variation of factors affecting crop yield and health.
Click here to view full
paper
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