Spectral Reflectance Signatures of Major Upland Crops at OSMI Bands

  • Hong, Suk-Young (Remote Sensing Lab., Soil Management Division, National Institute of Agricultural Science and Technology(NIAST)) ;
  • Rim, Sang-Kyu (Remote Sensing Lab., Soil Management Division, National Institute of Agricultural Science and Technology(NIAST)) ;
  • Jung, Won-Kyo (Remote Sensing Lab., Soil Management Division, National Institute of Agricultural Science and Technology(NIAST))
  • Published : 1998.09.01

Abstract

Spectral reflectance signatures of upland crops at OSMI bands were collected and evaluated for the feasibility of crop discrimination knowledge-based on crop calendar. Effective bands and their ratio values for discriminating corn from two other legumes were defined with OSMI equivalent bands and their ratio values. June 22 among measurements dates was the best date for corn discrimination from two other legumes, peanut and soybean, because all OSMI equivalent bands and their ratio values in June 22 were highly significant for corn separability. Phenological growth stage of a silage corn (rs510) could be estimated as a function of spectral reflectance signatures in vegetative stage. Five growth stage prediction models were generated by the SAS procedures REG and STEPWISE with OSMI equivalent bands and their ratio values in vegetative stage.

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