Title : 
Use of narrow-band spectra to detect rust diseases of wheat crops
         
        
        
            Author_Institution : 
Inst. of Phys., Acad. of Sci., Minsk
         
        
        
        
        
        
            Abstract : 
Using narrow band reflectance spectra an evaluation of damaged wheat crop can be made. The following spectral parameters can be used to detect the rust damaged wheat canopies: the quantity of the first derivative reflectance maxima; the maxima location in spectrum; the ratio of derivatives in maxima
         
        
            Keywords : 
agriculture; remote sensing; 0.68 to 0.74 mum; damaged wheat crop; derivatives; first derivative reflectance maxima; maxima location; narrow-band spectra; reflectance spectra; rust damaged wheat canopies; rust diseases; spectral parameters; Crops; Diseases; Electromagnetic wave absorption; Narrowband; Physics; Polynomials; Reflectivity; Smoothing methods; Stress; Vegetation;
         
        
        
        
            Conference_Titel : 
Geoscience and Remote Sensing Symposium, 1999. IGARSS '99 Proceedings. IEEE 1999 International
         
        
            Conference_Location : 
Hamburg
         
        
            Print_ISBN : 
0-7803-5207-6
         
        
        
            DOI : 
10.1109/IGARSS.1999.774443